BZJ405-2007 PDF English
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2E surface cold-rolled stainless steel plate and strip
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Similar standards BZJ 464 BZJ405-2007: 2E surface cold-rolled stainless steel plate and strip---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/BZJ405-2007
2E surface cold-rolled stainless steel plate and strip
Baoshan Iron & Steel Co., Ltd. Interim Technical delivery conditions
2E surface of cold rolled stainless steel sheet and strip
1 Scope
The provisions of the Interim Technical delivery conditions for cold-rolled stainless steel surface 2E steel sheet and strip (hereinafter referred to as steel sheet and strip) and the classification code,
Size, shape, weight, technical requirements, inspection and testing, packaging, marking and quality certificate.
The thickness of the Provisional Technical delivery conditions apply to Baoshan Iron & Steel Co., Ltd. for the production of 1.4mm ~ 6.5mm cold-rolled surface 2E
Stainless steel sheet and strip.
2 Normative references
The following documents contain provisions which, through this interim technical supply conditions of reference in terms of the Provisional Technical delivery conditions for this. Dated
Reference documents, all subsequent amendments (excluding corrections) or revisions do not apply to this interim technical supply conditions, and then
And, if encouraged to use the latest versions of these files according to the parties that this agreement Provisional Technical delivery conditions. Who does not note date
References period, the latest versions apply to this interim technical supply conditions.
GB/T 222-2006 finished steel chemical composition and permissible variations
GB/T 223 steel and alloy chemical analysis method
GB/T 228-2002 metallic materials at room temperature tensile test method
GB/T 230.1-2004 Metallic Rockwell hardness test - Part 1: Test methods (A, B, C, D, E, F,
G, H, K, N, T scales)
GB/T 231.1-2002 Brinell hardness test - Part 1: Test methods
GB/T 232-1999 metallic materials - Bend test
GB/T 2975-1998 steel and steel products for mechanical testing and sample preparation position
GB/T 4340.1-1999 Vickers hardness test Part I: Test methods
GB/T 8170-1987 numerical rounding rules
GB/T 11170-1989 Stainless photoemission spectroscopy method
GB/T 14203-1993 Steel and Alloy photoemission spectroscopy General
GB/T 20066-2006 Steel and iron - Sampling and determination of the chemical composition of the sample with a sample preparation method
GB/T 20123-2006 Steel - Determination of total carbon and sulfur content of the high-frequency induction furnace combustion infrared absorption method (conventional method)
Inductively coupled plasma atomic GB/T 20125-2006 low-alloy steel multi-element content Emission Spectrometry
Q/BQB 400 cold-rolled products, packaging, marking and quality certification
Size Q/BQB 401 cold rolling steel sheet and strip, shape, weight and tolerance
General provisions BZ J 300 stainless steel strip hot rolling packaging, marking and quality certificate
Standard test method ASTM E 1019-03 steel, nickel, cobalt alloy of carbon, sulfur, oxygen, nitrogen determination
3 Classification and designation
3.1 grade steel sheet and strip and its use shall comply with the requirements of Table 1.
3.2 Surface processing steel sheet and strip type should meet the requirements of Table 2.
Table 1
Trademark use
Structural parts for construction SUS302
SUS304 pipe for structural parts, mechanical equipment, pressure vessels, etc.
SUS304L used for pipe and other structural parts
SUS316
SUS316L
Pieces of pipe for structural, mechanical equipment, pressure vessels, etc.
SUS321 for pipe structures, machinery and equipment
Table 2
Code Type Surface Surface processing status
2E with a scale cold rolling, heat treatment, descaling (pickling or mechanical descaling descaling plus pickling descaling) treatment process
Cold-rolled surface, scale, surface roughness,
Mat
Baoshan Iron & Steel Co., Ltd. 2007-9-26 released 2007-10-15 implementation
4-182
4 Ordering information required
The user must provide the following information when ordering 4.1:
a) Product Name (steel or steel);
b) The product standards;
c) grades;
d) Product specifications and dimensions, roughness accuracy;
e) the edge of the state;
f) the weight or quantity;
g) other special requirements.
4.2 If the contract does not indicate the size of the order and precision flatness, edge state, packaging, places the size of normal precision, roughness of
General accuracy, without trimming state of delivery, according to the supplier to provide the packaging packaging.
5 size, shape, weight and tolerance
5.1 dimensions and tolerances
5.1.1 steel sheet and strip in nominal size range shall be in accordance with Table 3.
table 3
Category Nominal thickness mm nominal width mm nominal length or coil diameter mm
Trimming EC 730 ~ 1580 steel without trimming EM 1.4 ~ 6.5 750 ~ 1600 1000 ~ 9000
Trimming EC 730 ~ 1580 steel without trimming EM 1.4 ~ 6.5 750 ~ 1600 610
5.1.2 Thickness tolerance
5.1.2.1 The thickness of the steel sheet and strip tolerances shall comply with the requirements of Table 4.
Table 4 Unit: mm
The following thickness width of tolerance
< 1200 1200 ~ < 1500 ≥1500 nominal
Normal thickness precision
PT.A
High Accuracy
PT.B
General accuracy
PT.A
High Accuracy
PT.B
General accuracy
PT.A
High Accuracy
PT.B
1.40 ~ 1.60 ± 0.10 ± 0.07 ± 0.11 ± 0.08 ± 0.11 ± 0.08
> 1.60 ~ 2.00 ± 0.12 ± 0.08 ± 0.13 ± 0.09 ± 0.13 ± 0.09
> 2.00 ~ 2.50 ± 0.14 ± 0.10 ± 0.15 ± 0.11 ± 0.15 ± 0.11
> 2.50 ~ 3.00 ± 0.16 ± 0.11 ± 0.17 ± 0.12 ± 0.17 ± 0.12
> 3.00 ~ 4.00 ± 0.17 ± 0.14 ± 0.19 ± 0.15 ± 0.19 ± 0.15
> 4.00 ~ 5.00 ± 0.19 ± 0.15 ± 0.22 ± 0.16 ± 0.22 ± 0.16
> 5.00 ~ 6.50 ± 0.22 ± 0.16 ± 0.25 ± 0.17 ± 0.25 ± 0.17
The total length of the strip thickness deviation 5.1.2.2 ends 25m within the allowed values than the values specified in Table 4 exceeded 50%.
5.1.3 The steel sheet and strip width tolerances shall comply with the provisions of Table 5.
Table 5 Unit: mm
Width tolerance marginalized nominal width ordinary precision PT.A advanced precision PT.B
Not trimming EM ≥750 20
< 12004
0 Trimming EC
≥1200
5.1.4 length steel plate tolerances shall comply with the provisions of Q/BQB401 of.
5.2 shape
5.2.1 The steel should be cut at right angles off the side of the plate should not exceed 1% of the width.
5.2.2 steel sheet and strip camber comply with Table 6.
5.2.3 steel irregularities should be in accordance with Table 7.
5.2.4 strip should tightly and steel pyramid on one side to allow the value to comply with Table 8.
4-183
Table 6 Unit: mm
Camber allows not more than nominal width trimming not cutting edge length measurement
≥730 2 6 2000
Table 7 Unit: mm
No roughness is not greater than the nominal width of the normal precision PT.A high accuracy PT.B
≤1200 8 3
> 1200 ~ 1500104
> 1500155
Table 8 Unit: mm
Pyramid allows not more than nominal width trimming not cutting edge
≥730 35 70
5.3 size and shape measurements shall comply with Q/BQB401 of.
5.4 wt.
Steel sheet and strip according to the actual weight delivery.
6 Technical Requirements
6.1 Chemical composition
Chemical composition of steel (melting analysis) should meet the requirements of Table 9. Finished steel sheet and strip chemical composition tolerances shall comply with GB/T 222
Provisions.
Table 9
Chemical composition of a (mass fraction)%
Grade C
no greater than
Si
no greater than
Mn
no greater than
no greater than
It is not greater than Ni Cr Mo Other elements
SUS302 0.15 1.00 2.00 0.045 0.030 8.0 ~ 10.0 17.0 ~ 19.0 - -
SUS304 0.08 1.00 2.00 0.045 0.030 8.0 ~ 10.5 18.0 ~ 20.0 - -
SUS304L 0.030 1.00 2.00 0.045 0.030 9.0 ~ 13.0 18.0 ~ 20.0 - -
SUS316 0.08 1.00 2.00 0.045 0.030 10.0 ~ 14.0 16.0 ~ 18.0 2.00 ~ 3.00 -
SUS316L 0.030 1.00 2.00 0.045 0.030 12.0 ~ 15.0 16.0 ~ 18.0 2.00 ~ 3.00 -
SUS321 0.08 1.00 2.00 0.045 0.030 9.0 ~ 13.0 17.0 ~ 19.0 - Ti≥5 × C
6.2 Melting Method
Steel sheet and strip steel used in electric furnace or smelting, and refining process.
6.3 Delivery Status
Steel sheet and strip in cold rolling and heat treatment and descaling (pickling or mechanical descaling descaling plus pickling descaling) treatment delivery.
6.4 Mechanical Properties
Mechanical properties of the steel sheet and strip shall comply with the requirements of Table 10, wherein the yield strength is usually only as a reported value. For parties sought assurances yield
Intensity values, should be discussed in order, and indicate in the contract. Side table for only one kind of hardness test hardness value of 10 listed.
4-184
Table 10
Tensile tests a, b hardness test
Trademark
Yield Strength
Rp0.2
MPa
not less than
Tensile strength Rm
MPa
not less than
The Elongation%
not less than
HBW
no greater than
HRB
no greater than
HV
no greater than
SUS302 205 520
SUS304 205 520
SUS304L 175 480
SUS316 205 520
SUS316L 175 480
SUS321 205 520
4018790200
a tensile test specified values apply to transverse specimens;
b steel sheet and strip nominal thickness of less than 3mm, tensile specimens taken L0 = 50mm, b = 12.5mm, namely GB/T 228 in the P5 sample; sheets and strips
The nominal thickness not less than 3mm, tensile specimens taken L0 = 50mm, b = 25mm, namely GB/T 228 P14 in the sample.
6.5 corrosion resistance
After consultation between the supplier and indicate in the contract, the intergranular corrosion test steel sheet and strip.
6.6 surface quality
6.6.1 steel sheet and strip surface defect shall not affect the use. After steel sheet and strip surface after pickling are not allowed oxide and pickling
defect.
6.6.2 For steel, because there is no opportunity to cut with the defective portion, thus strip delivery flaws allowed, but not the length of the defective part
Exceed 6% of the total length of each volume.
6.7 For a party to the chemical composition of the steel sheet and strip, mechanical properties, non-metallic inclusions, high temperature performance and other special requirements, in order
Consultations, and indicate in the contract.
7 inspection and testing
7.1 steel sheet and strip appearance was visually inspected.
Size 7.2 steel sheet and strip, shape application complies with the requirements of precision measurement tool.
7.3 each batch of steel sheet and strip the test items, the number of samples, sampling methods, test methods and shall comply with the provisions of Table 11.
7.4 steel sheet and strip shall be granted acceptance, each batch shall be no greater than 30 tons of the same grade, the same heat, the same specifications and the same heat
Steel sheet and strip handling system components.
Table 11
Test item number number of samples Sampling Methods Test Method
A chemical composition 1/furnace GB/T 20066 GB/T 223, GB/T 11170, GB/T 14203, GB/T 20123, GB/T 20125
2 Tensile test 1/batch GB/T 228
3 hardness 1/batch GB/T 2975 GB/T 230.1, GB/T 231.1, GB/T 4340.1
7.5 If a particular test results do not meet the standard requirements, from the same batch and then either take double the number of specimens that failed project
recheck. Retest results (including all indicators of the project test required) qualified, then the whole batch is qualified. Retest results (including the pilot project
All indicators test required) even if there is an indicator of failure, then retest failed. As retest failure, we have been doing tests and test results
If the incompatibility is not a single piece of acceptance, but without making a single batch of material test piece by piece may resubmit testing and acceptance.
8 packaging, marking and quality certification
8.1 strip packaging should comply BZ J 300 in FIG. 3 or FIG. 4; marking and certification shall comply with Q/BQB 400 of
Provisions.
8.2 steel packaging, marking and quality certificate shall comply with Q/BQB 400's.
9 numerical rounding methods should comply with GB/T 8170's.
4-185
Appendix A
(Informative)
This standard is similar to domestic and foreign standard grades table
Table A.1
BZ J 305-2007 GB/T 3280-2007 JIS G 4305-2005
ASTM A
240/A240M-06c
EN10088-2:2005
SUS302 12Cr18Ni9 SUS302 302 X10CrNi18-8
SUS304 06Cr19Ni10 SUS304 304 X5CrNi18-10
SUS304L 022Cr19Ni10 SUS304L 304L X2CrNi19-11
SUS316 06Cr17Ni12Mo2 SUS316 316 X5CrNiMo17-12-2
SUS316L 022Cr17Ni12Mo2 SUS316L 316L X2CrNiMo17-12-2
SUS321 06Cr18Ni11Ti SUS321 321 X8CrNiTi18-10
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......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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