GB/T 19830: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 19830-2023 | English | RFQ |
ASK
|
3 days [Need to translate]
|
Petroleum and natural gas industries - Steel pipes for use as casing or tubing for wells
| Valid |
GB/T 19830-2023
|
| GB/T 19830-2017 | English | RFQ |
ASK
|
25 days [Need to translate]
|
Petroleum and natural gas industries -- Steel pipes for use as casing or tubing for wells
| Obsolete |
GB/T 19830-2017
|
| GB/T 19830-2011 | English | RFQ |
ASK
|
13 days [Need to translate]
|
Petroleum and natural gas industries -- Steel pipes for use as casing or tubing for wells
| Obsolete |
GB/T 19830-2011
|
| GB/T 19830-2005 | English | RFQ |
ASK
|
13 days [Need to translate]
|
Petroleum and natural gas industries -- Steel pipes for use as casing or tubing for wells
| Obsolete |
GB/T 19830-2005
|
PDF similar to GB/T 19830-2023
Basic data | Standard ID | GB/T 19830-2023 (GB/T19830-2023) | | Description (Translated English) | Petroleum and natural gas industries - Steel pipes for use as casing or tubing for wells | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E92 | | Classification of International Standard | 75.180.10, 77.140.75 | | Word Count Estimation | 242,239 | | Date of Issue | 2023-11-27 | | Date of Implementation | 2024-03-01 | | Older Standard (superseded by this standard) | GB/T 19830-2017 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 19830-2023: Petroleum and natural gas industries - Steel pipes for use as casing or tubing for wells
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 77:140:75;75:180:10
CCSE92
National Standards of People's Republic of China
Replace GB/T 19830-2017
Oil and gas industry oil and gas well casing
or steel pipe for oil pipe
(ISO 11960:2020,MOD)
Published on 2023-11-27
2024-03-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface V
1 Scope 1
2 Normative references 1
3 Terms, definitions, symbols and abbreviations 4
3:1 Terms and definitions 4
3:2 Symbols, codes and abbreviations 8
4 Consistency 9
4:1 Double citation of normative reference documents 9
4:2 Unit of measurement 9
4:3 Related Appendix 9
5 Information required by the buyer10
5:1 C90, T95 and C110 steel grade 10
5:2 Casing 10
5:3 Oil pipe 12
5:4 Coupling blanks, coupling materials and accessory materials14
6 Manufacturing methods 15
6:1 General 15
6:2 Heat treatment 15
6:3 Straightening 15
6:4 Traceability16
6:5 Processes requiring validation17
7 Material requirements17
7:1 Chemical composition 17
7:2 Tensile properties 17
7:3 CVN impact test---General requirements 18
7:4 CVN impact absorption energy requirements for coupling blanks, coupling materials, coupling semi-finished products and couplings19
7:5 CVN impact absorption energy requirements for pipes 20
7:6 CVN impact absorption energy requirements for accessory materials 21
7:7 Maximum hardness 22
7:8 Hardness changes---C90, T95, C110 and Q125 steel grades 23
7:9 Process Control---C90, T95, C110 and Q125 Steel Grades 23
7:10 Hardenability---Minimum percentage of martensite in quenched and tempered products 23
7:11 Grain size---C90, T95 and C110 steel grade 24
7:12 Surface condition---L80 steel grade 13Cr type 24
7:13 Flattening---electrically welded pipe 24
7:14 Sulfide stress cracking test---C90, T95 and C110 steel grades 24
8 Dimensions, quality, tolerances, product ends and defects26
8:1 Code and specifications 26
8:2 Dimensions and quality 27
8:3 Diameter 27
8:4 Wall thickness 27
8:5 Quality 28
8:6 Length 28
8:7 Casing docking pipe 28
8:8 Welding flash height and trimming 28
8:9 Straightness 29
8:10 Diameter requirements 29
8:11 Dimensional and mass tolerances 29
8:12 Product end 31
8:13 Defect 32
8:14 Coupling tightening and thread protection 32
9 coupling 33
9:1 General 33
9:2 Alternative steel grades or heat treatments33
9:3 Mechanical properties 33
9:4 Dimensions and tolerances 33
9:5 Standard coupling 34
9:6 Special gap coupling---all steel grades except Q125 steel grade 34
9:7 Combined coupling 34
9:8 Coupling with sealing ring 34
9:9 Special chamfered oil pipe standard coupling---all steel grade 34
9:10 Thread processing---coupling 34
9:11 Surface inspection 34
9:12 Measurement of defects 35
9:13 Repair and removal of defects and defects35
9:14 Thread surface treatment---Q125 steel grade 35
9:15 Protection of couplings and coupling semi-finished products---C90, T95, C110 and Q125 steel grade 35
10 Inspection and testing 35
10:1 Test equipment35
10:2 Definition of mechanical property test batch36
10:3 Chemical composition test 36
10:4 Tensile test 37
10:5 Flattening test 39
10:6 Hardness test 40
10:7 Impact test 45
10:8 Grain size determination---C90, T95 and C110 steel grade 46
10:9 Hardenability---C90, T95 and C110 steel grade 46
10:10 Sulfide stress cracking test---C90, T95 and C110 steel grade 46
10:11 Metallographic evaluation---all steel grades of electric welded pipe47
10:12 Hydrostatic pressure test 47
10:13 Dimensional inspection 49
10:14 Appearance inspection 51
10:15 Non-destructive testing 51
11 Mark 58
11:1 General 58
11:2 Hammer Imprint Marking Requirements 59
11:3 Stencil marking requirements 60
11:4 Color identification 60
11:5 Thread and end machining markings 61
11:6 Pipe thread processing factory marking requirements 61
12 Coating and Protection 61
12:1 Coating 61
12:2 Thread protector 62
13 File 62
13:1 Electronic media 62
13:2 Certificate requirements 63
13:3 Contents of the certificate 63
13:4 Record Keeping 63
14 Minimum requirements for equipment configuration of various manufacturers64
14:1 Pipe making factory 64
14:2 Processing plant 64
14:3 Pipe thread processing factory 64
14:4 Manufacturer of couplings, pup joints or accessories 64
Appendix A (Normative) Supplementary Requirements 66
A:1 Overview 66
A:2 All types of steel grades SR2H40, J55, K55, N80, L80, R95 and comply with A:8SR16
Supplementary Nondestructive Testing of P110 Steel Grade 66
A:3 SR9 coupling semi-finished products---C110 and Q125 steel grade 66
A:4 SR10 thickened casing---only for Q125 steel grade 66
A:5 SR11P110 and Q125 steel grade electric welded pipe 67
A:6 SR12 statistical impact test 68
A:7 SR13 coupling with sealing ring 70
A:8 SR16CVN impact test 70
A:9 SR22 High Resistance to Leakage LC 73
A:10 SR38 Statistical Tensile Test---C90, T95 and C110 Steel Grade 75
A:11 SR39 replaces the SSC test of ANSI/NACETM0177:2016D method---C110 steel grade 76
A:12 SR40H40, J55, K55, N80 steel grade all types and L80 steel grade Class 1 electric welded casing, tubing and pup joints 76
A:13 SR41 yield strength---Q125 steel grade 77
A:14 SR42CVN test performance---all types of N80 steel grade, L80 steel grade 1, C90, R95, T95, P110 and Q125 steel grade 77
A:15 SR43 pipe end non-destructive testing---L80 steel grade 13Cr type, C90, T95 and Q125 steel grade 77
A:16 SR44 hardenability---minimum percentage of martensite for quenched and tempered products 77
A:17 SR45 sulfide stress cracking test---L80 steel grade 1, C90 and T95 steel grade 77
A:18 SR46 hardness test---unthickened pipe, C90 and T95 steel grades (10:6:5) 78
A:19 SR47 high anti-extrusion requirements 78
A:20 Supplementary test 78 when the SR48 hydrostatic test pressure is limited to 69:0MPa (10000psi)
Appendix B (Normative) Purchaser Inspection 79
B:1 Inspection Notice 79
B:2 Factory access79
B:3 Conformity 79
B:4 Rejection79
Appendix C (normative) SI unit tabulation 80
Appendix D (normative) SI unit system (USC unit system) Figure 138
Appendix E (normative) USC unit tabulation 159
Appendix F (informative) Method of converting USC units to SI units 217
F:1 Overview 217
F:2 General Chapter 217
F:3 Pipe size 217
F:4 Diameter of diameter rod 218
F:5 Coupling size 219
F:6 Mass per unit length 220
F:7 Tensile and flattening tests 221
F:8 CVN impact absorption energy requirements 222
F:9 Hydrostatic pressure test 223
F:10 Others225
Appendix G (normative) Thread protector design verification requirements 226
G:1 General Principle 226
G:2 Verification procedures 226
G:3 Specimen identification 226
G:4 Dimensional stability test 226
G:5 Torque and vibration tests 227
G:6 Axial impact test 227
G:7 Incline impact test 227
G:8 Corrosion test 228
G:9 Pull-off test (only for external thread end protectors) 229
G:10 Hookable (liftable) test 229
Appendix H (Normative) High anti-extrusion requirements 230
H:1 General Chapter 230
H:2 anti-collapse value 230
H:3 Proof of Competence230
H:4 Pipe manufacturing, inspection and testing 230
Reference 232
Foreword
This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
This document replaces GB/T 19830-2017 "Steel Pipes for Oil and Gas Well Casings or Oil Pipes in the Petroleum and Natural Gas Industry": With GB/T 19830-
Compared with:2017, in addition to structural adjustments and editorial changes, the main technical changes are as follows:
a) The Product Specification Level (PSL) (see 1:1 of the:2017 edition) is deleted and the main requirements are included in the text or as supplementary requirements:
Enter Appendix A;
b) Deleted the steel grade grouping (see 1:2 of the:2017 edition);
c) Delete M65 steel grade, L80 steel grade 9Cr products and related technical requirements (see 1:2 of the:2017 version);
d) Delete the terms and definitions of “control tightening”, “inspection batch size”, “pup joint material”, “steel strip” and “upper critical temperature” (see:2017
Versions 4:1:16, 4:1:23, 4:1:38, 4:1:42, 4:1:47);
e) Deleted abbreviations such as CS, ID, OD, NIST, and PSL (see 4:2 of the:2017 version);
f) Changed the negotiation terms between the purchaser and the manufacturer for the sulfide stress cracking test method for C90 and T95 steel grade casing and C110 steel
The sulfide stress cracking test method and test solution for grade casing are optional requirements for the purchaser (see 5:2:2, 5:2:3,:2017 version of
5:2:2 and 5:2:3);
g) The supplementary test when the hydrostatic test pressure is limited to 69:0MPa (10000psi) is a negotiated term between the purchaser and the manufacturer:
(See 5:2:3 and 5:3:3);
h) The purchaser’s optional requirements for the sulfide stress cracking test method for C90 and T95 steel grade couplings and the test method for C110 steel grade couplings have been changed:
Sulfide stress cracking test methods and test solutions are required by the purchaser (see 5:4:1 and 5:4:2,:2017 edition of 5:4:1 and
5:4:2);
i) Increased sulfide stress for C110 steel grade coupling blanks, coupling materials and accessory materials with wall thickness greater than 50:8mm (2:0in)
The cracking test is a requirement negotiated between the purchaser and the manufacturer (see 5:4:3);
j) The straightening requirements for some steel grades have been changed (see 6:3:2, 6:3:4, 6:3:2, 6:3:4, 6:3:5 of the:2017 edition);
k) Changed the Charpy impact test conditions for some steel grades (see 7:5:5, 7:5:6 of the:2017 edition);
l) Changed the upper limit values of full wall thickness hardness and surface hardness of C110 steel grade (see 7:7:1, 10:6:9, 10:6:14,:2017 version of 7:7:1,
10:6:9, 10:6:14);
m) Added the hardenability requirements for L80 steel grade 1 (see 7:10:1);
n) Added inner surface quality requirements for L80 steel grade 13Cr pipes (see 7:12);
o) Added the test solution saturation analysis method for sulfide stress cracking test (see 7:14:4);
p) Added sulfide stress cracking test requirements for C110 steel grade with wall thickness greater than 50:8mm (2:0in) (see 7:14:5);
q) Added negotiation requirements for casings with S, L or B end processing to be supplied with intermediate wall thicknesses (see 8:2);
r) The diameter requirements of pipes have been changed (see 8:10,:2017 version of 8:10);
s) Delete the end process quality requirements (see 8:12:5 of the:2017 edition);
t) Added requirements for marking threads on products not listed in the table (see 8:12:5);
u) Delete the reducing coupling and related requirements in coupling types (see 9:8 of the:2017 edition);
v) Added requirements for sealing ring groove processing and eccentricity of couplings with sealing rings (see 9:8);
w) The general requirements for coupling thread processing are deleted (see 9:11:1 of the:2017 edition);
x) The requirements for calibration or verification frequency of test equipment have been changed (see 10:1, 10:1 of the:2017 version);
y) Added requirements for H40, J55 and other steel grade coupling blanks, coupling materials, accessory materials and pipe batches in different batches (see 10:2:1);
z) Delete the requirement to provide the purchaser with the analysis results of C110 and Q125 steel grade products (see 10:3:2 of the:2017 version);
aa) The sulfide stress cracking test requirements for C110 steel grade have been changed (see 10:10,:2017 version of 10:10);
bb) Added calibration cycle requirements for testing machines used for hydrostatic testing (see 10:12:1);
cc) Changed the test pressure requirements for hydrostatic pressure testing (see 10:12:3,:2017 version of 10:12:3);
dd) Changed the requirements for non-destructive testing personnel (see 10:15:2,:2017 version of 10:15:2);
ee) Changed the non-destructive testing requirements for some steel grade casing and tubing (see 10:15:9,:2017 version of 10:15:9);
ff) Added requirements for ultrasonic testing of the inner surface of accessory materials made of bar blanks (see 10:15:12:5);
gg) Added non-destructive testing requirements for C90 and T95 steel grade coupling blanks and accessory materials (see 10:15:13);
hh) Changed the non-destructive testing acceptance level requirements for the internal and external surfaces of casing and tubing (see 10:15:3, Table C:43 and Table E:43,:2017
Version 10:15:3, Table C:43 and Table E:43);
i) Added an alternative method of stencil marking (see 11:1:4);
j) Changed the marking method of production date (see 11:1:8,:2017 version of 11:1:8);
kk) Delete the requirement regarding overlap period (see 11:1:9 of the:2017 version);
l) Added the triangle marking method for all types of H40, J55, K55, N80 steel grades and P110 steel grade (see 11:2:6);
mm) Changed the supplementary requirements for the certificate negotiated between the purchaser and the manufacturer into specified requirements (see 13:2 and 13:3, A:9 of the:2017 edition);
nn) Added supplementary testing and marking and record keeping requirements when the hydrostatic test pressure is limited to 69:0MPa (10000psi)
(See A:20, Table C:48 and Table E:48, Table C:49 and Table E:49);
oo) Changed the nominal unit length mass of casing code 1:4-1/2~5-1/2 and 7 (see Table C:1 and Table E:1,:2017 version
Table C:1 and Table E:1);
pp) Changed the critical thickness requirements for partial connection type couplings coded 1:4-1/2~7 (see Table C:7 and Table E:7,:2017 edition
Table C:7 and Table E:7);
qq) Changed the specifications of some connection forms of couplings, coupling blanks, coupling materials, coupling semi-finished products and accessory materials of code 1:4-1/2~7
Charpy impact test specimen requirements (see Table C:10~Table C:15 and Table E:10~Table E:15,:2017 version of Table C:10~Table C:15 and
Table E:10~Table E:15);
rr) Changed the size and quality requirements for some specifications of casing (see Table C:23 and Table E:23,:2017 version of Table C:23 and Table E:23);
ss) The minimum allowable length requirement of casing is deleted (see Table C:27 and Table E:27 of the:2017 version);
tt) Changed the maximum allowable depth requirements for Class 1 linear imperfections in N80 steel grade (see Table C:30 and Table E:30,:2017 version of Table C:30
and Table E:30);
uu) Changed the outer diameter requirements of code 1: 4-1/2~5-1/2 round thread and trapezoidal thread casing coupling, and the load-bearing surface width of some specifications
Degree and quality requirements (see Table C:32 and Table E:32, Table C:33 and Table E:33,:2017 version of Table C:32 and Table E:32,
Table C:33 and Table E:33);
vv) Added an appendix on high anti-crush requirements (see Appendix H);
ww) Deleted the appendix "Product Specification Level" "Modification of H2S Titration Procedure in Appendix C of ANSI-NACETM0284-2003"
(See Appendix H and Appendix K of the:2017 edition):
This document is modified to adopt ISO 11960:2020 "Steel Pipes for Oil and Gas Well Casing or Tubing in the Petroleum and Natural Gas Industry":
Compared with ISO 11960:2020, this document has made the following structural adjustments:
---The note in 6:2:1 corresponds to the definition of 3:1:45 "Upper Critical Temperature" in ISO 11960:2020;
---3:2:1 and 3:2:2 correspond to 3:2 in ISO 11960:2020;
---7:7:1:1~7:7:1:3 correspond to 7:7:1 in ISO 11960:2020;
---10:15:12:1~10:15:12:5 corresponds to 10:15:12 in ISO 11960:2020;
---10:15:13:1~10:15:13:5 corresponds to 10:15:13 in ISO 11960:2020:
The technical differences between this document and ISO 11960:2020 and their reasons are as follows:
---Correct the normative reference ISO 6506-1:2004 to ISO 6506-1:2014 (see Chapter 10); ISO 6508-1:2006 is corrected to
ISO 6508-1:2016 (see Chapter 10); replaced ASTME709 with ASTME3024 (see 9:11:2, 10:15); added
GB/T 9253 (see Chapter 3, 8:3:2, 8:12:4, Appendix A, Appendix C, Appendix E), ISO /T R10400 (see 10:12:3); deleted
MIL-STD-810c (see ISO 11960:2020G:5:5) to facilitate the application of this document;
---Deleted the term and definition of "inspection lot size" not used in the text (see ISO 11960:2020, 3:1:22) to comply with relevant national standards
family standards;
---Deleted the term and definition of "steel strip" not used in the text (see ISO 11960:2020, 3:1:40) to comply with relevant national standards
Regulation;
---Deleted abbreviations such as CS, ID, OD that are not used in the text (see ISO 11960:2020, 3:2) to comply with relevant national standards
Regulation;
---Added supplementary testing when the hydrostatic test pressure is limited to 69:0MPa (10000psi), which is a negotiation requirement between the purchaser and the manufacturer:
(See 5:2:3 and 5:3:3), consistent with relevant standards;
---Increased the sulfide stress of C110 steel grade coupling blanks, coupling materials and accessory materials with wall thickness greater than 50:8mm (2:0in)
The cracking test is a requirement negotiated between the purchaser and the manufacturer (see 5:4:3) and is consistent with relevant standards;
---Changed the upper limit values of full wall thickness hardness and surface hardness of C110 steel grade (see ISO 11960:2020, 7:7:1, 10:6:9, 10:6:14),
Be consistent with relevant standards;
---Added sulfide stress cracking test requirements for C110 steel grades with wall thickness greater than 50:8mm (2:0in) (see 7:14:5), which are consistent with
Maintain consistency with relevant standards;
---Added negotiation requirements for casing with S, L or B end processing to be supplied with intermediate wall thickness (see 8:2), consistent with relevant standards
Be consistent;
---Changed the diameter requirements of pipes (see ISO 11960:2020,8:10) to be consistent with relevant standards;
---Added the marking requirements for thread processing on products not listed in the table (see 8:12:5), consistent with relevant standards;
---Added requirements for H40, J55 and other steel grade coupling blanks, coupling materials, accessory materials and pipe batches in different batches (see
10:2:1), consistent with relevant standards;
--- Added calibration cycle requirements for testing machines for hydrostatic testing (see 10:12:1), consistent with relevant standards;
---Changed the test pressure requirements for hydrostatic pressure testing (see ISO 11960:2020, 10:12:3) to be consistent with relevant standards;
---Added an alternative method of stencil marking (see 11:1:4), consistent with relevant standards;
---Changed the marking method of production date (see ISO 11960:2020,11:1:8) to be consistent with relevant standards;
---Added supplementary testing and marking and record keeping requirements when the hydrostatic test pressure is limited to 69:0MPa (10000psi)
(See A:20, Table C:48 and Table E:48, Table C:49 and Table E:49), consistent with relevant standards:
The following editorial changes have been made to this document:
---Deleted the informative reference ANSINACE-MR0175 (see ISO 11960:2020, 5:1, 7:14:1, 7:14:3);
---Changed the contents of technical errata [see 7:14:3a), 7:14:5c), 10:6:9, 10:6:14, 10:6:17, 11:2:6, Table C:40 and Table
E:40 footnote a];
--- Added informative reference to GB/T 9253 (see Appendix C, Appendix D, Appendix E):
Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:
This document is proposed and coordinated by the National Petroleum and Natural Gas Standardization Technical Committee (SAC/TC355):
This document was drafted by: China National Petroleum Corporation Engineering Materials Research Institute Co:, Ltd:, China National Petroleum Corporation Xinjiang Oilfield
Branch, National Petroleum and Natural Gas Pipeline Group Co:, Ltd:, PetroChina Southwest Oil and Gas Field Branch, Baoshan Steel
Iron Co:, Ltd:, Baoji Petroleum Steel Pipe Co:, Ltd:, Xi'an Sanhuan Petroleum Pipe Technology Co:, Ltd:
The main drafters of this document: Fang Wei, Wang Jianjun, Chen Xinyi, Zhao Peng, Han Xinli, Yang Xiaoping, Gao Xia, Xu Xiaofeng, Li Yufei, Xue Chengwen,
Zhang Jingang, Guo Jianhua, Xu Ting, Lu Hua, Li Ru:
This document was first published in:2005, revised for the first time in:2011, revised for the second time in:2017, and this is the third revision:
Oil and gas industry oil and gas well casing
or steel pipe for oil pipe
1 Scope
This document describes the manufacturing methods of steel pipes (casings, oil pipes and pup joints), coupling blanks, coupling materials and accessory materials, and stipulates steel pipes,
Material requirements for coupling blanks, coupling materials and accessory materials, dimensions, quality and product ends, inspection and testing, marking, coating and protection, documentation
parts, minimum equipment configuration requirements for various manufacturers, etc:
Upon negotiation between the purchaser and manufacturer, this document also applies to plain-end pipes of other specifications and wall thicknesses:
This document applies to the following connectors:
---Short round threaded casing (SC);
---Long round threaded casing (LC);
---Partially trapezoidal threaded casing (BC);
---No thickened oil pipe (NU);
---Externally thickened oil pipe (EU);
---Integral joint oil pipe (IJ):
Note 1: For more detailed information, see GB/T 9253 or APISpec5B:
For these joints, this document specifies the technical delivery conditions for couplings and thread protectors:
Note 2: See A:9SR22 of Appendix A for the supplementary requirements for the high leakage resistance joint (LC) that can be selected after negotiation:
This document also applies to pipes with joints not covered by ISO or API standards:
Products to which this document applies include the following steel grade pipes: H40, J55, K55, N80, L80, C90, R95, T95, P110, C110 and Q125:
Note 3: In this document, when the symbol N80 is used alone, it includes N80 steel grade 1 and N80 steel grade Q; when the symbol L80 is used alone, it includes
Including L80 steel grade 1 and L80 steel grade 13Cr:
This document does not apply to threading requirements:
Note 4: Dimensional requirements for threads and thread gauges, provisions for thread measurement, gauge specifications, and instruments and methods for thread inspection are all in GB/T 9253 or
Given in APISpec5B:
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, referenced documents with dates are only
The version corresponding to the date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document:
GB/T 9253 Processing, measurement and inspection of casing, tubing and line pipe threads in the oil and gas industry
grain size)
ISO 6506-1:2014 Brinell hardness test of metallic materials Part 1: Test method (Metalicmaterials-Brinel
hardnesstest-Part 1:Testmethod)
Note: GB/T 231:1-2018 Brinell hardness test of metallic materials Part 1: Test method (ISO 6506-1:2014, MOD)
ISO 6506-2 Brinell hardness testing of metallic materials Part 2: Verification and calibration of testing machines (Metalicmaterials-
Note: GB/T 231:2-2012 Brinell hardness test of metallic materials Part 2: Inspection and calibration of hardness tester (ISO 6506-2:2017, MOD)
ISO 6508-1:2016 Rockwell hardness test of metallic materials Part 1: Test method (Metalicmaterials-Rockwel
|