HG/T 20613-2009 PDF English
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Bolting for use with steel pipe flanges (PN designated)
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HG/T 20613-2009: PDF in English (HGT 20613-2009) HG/T 20613-2009
Chemical Industry Standard
of the People's Republic of China
HG
Replacing HG 20613-1997
Bolting for Use with Steel Pipe Flanges
(PN designated)
(PN系列)
ISSUED ON. FEBRUARY 5, 2009
IMPLEMENTED ON. JULY 1, 2009
Issued by. Ministry of Industry and Information Technology of the People’s
Republic of China
[Including Corrigendum/Modification confirmed in May 2012. Text in RED]
Contents
1. Scope ... 3
2. Normative references ... 3
3. Pattern, specification and dimension of bolting ... 4
4. Materials... 7
5. Bolting service ... 9
6. Dimension tolerance ... 35
7. Surface treatment ... 35
8. Inspection ... 35
9. Acceptance, packaging and quality certificate ... 35
10. Marking and labeling ... 36
Appendix A (Informative) Flap Gasket for Pipe Flange Bolting ... 37
Appendix B (informative) Bolting and Bolting Insulation Parts for Insulating Flange 40
1. Scope
This standard specifies pattern, dimension, material, marking, technical requirement and
service provisions of bolting for use with steel pipe flanges (PN designated).
This Standard is applicable to HG/T 20592 Bolting for use with Steel Pipe Flange,
including hex bolt, double end studs (clamping type), full thread stud and nut.
2. Normative references
The following standards contain provisions which, through reference in this text,
constitute provisions of this Standard. For dated reference, subsequent amendments
(excluding content of corrigenda) to, or revisions of, any of these publications do not apply.
However, Parties to agreements based on this Code are encouraged to investigate the
possibility of applying the most recent editions of the standards indicated below. For undated
references, the latest edition of the normative document referred to applies.
"Fasteners--Ends of Parts with External Thread" GB/T 2
"Fasteners--Acceptance Inspection" GB/T 90.1
"Fasteners--Marking and Packaging" GB/T 90.2
"General Purpose Metric Screw Threads—Basic Dimensions" GB/T 196
"General Purpose Metric Screw Threads—Tolerances" GB/T197
"Double End Studs (Clamping Type)-Product Grade B" GB/T 901
"Stainless Steel Bars" GB/T 1220
"Alloy Structure Steels" GB/T 3077
"Mechanical Properties of Fasteners--Bolts, Screws and Studs" GB/T 3098.1
"Mechanical Properties of Fasteners--Nuts--Coarse Thread" GB/T 3098.2
"Mechanical Properties of Corrosion-resistant Stainless-steel Fasteners-Part 1. Bolts,
Screws and Studs" GB/T 3098.6
"Mechanical Properties of Fasteners-Nuts made of Stainless-steel" GB/T 3098.15
"Tolerances for Fasteners--Bolts, Screws, Studs and Nuts" GB/T 3103.1
"Laminated Rods" GB/T 5133
"Hexagon Head Bolts" GB/T 5782
"Hexagon Head Bolts with Fine Pitch Thread" GB/T 5785
"Hexagon Nuts, Style I" GB/T 6170
"Hexagon Nuts, Style I with Fine Pitch Thread" GB/T 6171
"Hexagon Nuts, Style II" GB/T 6175
"Hexagon Nuts, Style II with Fine Pitch Thread" GB/T 6176
"Fasteners-Surface Discontinuities-Bolts, Screws and Studs for General Requirements"
GB/T 5779.1
"Fasteners-Surface Discontinuities-Nuts" GB/T 5779.2
"Fasteners-Surface Discontinuities-Bolts, Screws and Studs for Special Requirements"
Table 4.0.1 Classification of Bolting Materials for Pipe Flanges
Bolting materials
High strength Medium strength Low strength
GB/T 3098.1, 8.8
GB/T 3077, 35CrMo
25Cr2MoV
DL/T 439, 42CrMo
ASTM A320, 17
GB/T 3098.6, A2-70
A4-70
ASTM A193, B8-2
B8M-2
ASTM A453, 660
GB/T 1220, 0Cr17Ni12Mo2(316)
0Cr18Ni9(304)
GB/T 3098.1, 5.6
GB/T 3098.6, A4-50
A2-50
Note. The low strength bolting materials are only applicable to flanges and non-metallic flat gaskets with pressure grade of
less than or equal to PN40.
4.0.2 The working pressure and temperature range of bolting materials are in accordance with
those specified in Table 5.0.4 of this Standard.
4.0.3 The materials and mechanical properties of the commercial grade bolting shall comply
with the requirements of GB/T 3098.1, GB/T 3098.2, GB/T 3098.6 and GB/T 3098.15.
4.0.4 The chemical composition, heat treating regime and mechanical property of special
grade bolting shall be in accordance with those specified in Table 4.0.4. The test specimen for
mechanical property shall be cut along the rolling direction from the roughcast with specified
heat treatment, and the cutting position of the test specimen is.
1 The specimen with roughcast diameter of less than or equal to 40mm shall be sampling
from the center.
2 The one with roughcast diameter of more than 40mm shall be sampling from 1/4 of the
diameter.
4.0.5 The roughcast of the full thread stud shall be made with mechanical property test by
batches. Roughcast of hexagonal nut (style II) shall be made with hardness testing by batches.
3 Matched with non-metallic flat gasket
5.0.2 The service conditions of commercial grade double end studs and hexagonal nut (style I)
shall be in accordance with the following requirements.
1 The nominal pressure grade is less than or equal to PN40.
2 Non-toxic, non-flammable medium and non-violent cycle occasions
5.0.3 Unless otherwise specified in Article 5.0.1 and Article 5.0.2, special grade full thread
stud and hexagonal nut (style II) shall be adopted.
5.0.4 The working conditions and temperature range of bolting shall be in accordance with
those specified in Table 5.0.4.
Table 5.0.7-2 Length and Approximate Mass (Plate-type Flat Welding Flange) of Hexagon Head Bolts and
Studs for PN2.5 Flanges
Nominal dimension
DN Screw thread Quantity n
Hexagon head bolts and studs
LSR(mm) Mass (kg) LZR(mm) Mass (kg)
10 M10 4 40 37 55 33
15 M10 4 40 37 55 33
20 M10 4 45 40 60 36
25 M10 4 45 40 60 36
32 M12 4 50 60 70 56
40 M12 4 50 60 70 56
50 M12 4 50 60 70 56
65 M12 4 50 60 70 56
80 M16 4 60 141 85 136
100 M16 4 60 141 85 136
125 M16 8 65 149 90 144
150 M16 8 65 149 90 144
200 M16 8 70 157 95 152
250 M16 12 75 165 95 152
300 M20 12 80 282 105 252
350 M20 12 80 282 110 264
400 M20 16 85 294 115 276
450 M20 16 90 306 120 288
500 M20 20 90 306 120 288
600 M24 20 100 518 135 486
700 M24 24 105 536 140 504
800 M27 24 115 756 150 690
900 M27 24 120 779 155 713
1000 M27 28 120 779 160 736
1200 M27 32 125 802 165 759
1400 M27 36 135 848 170 782
1600 M27 40 140 871 180 828
1800 M27 44 145 894 185 851
2000 M27 48 155 940 190 874
Note. 1 The bolting mass is the approximate total mass of every 1000 pieces ones.
2 The bolting length excludes the thickness of the gasket.
Table 5.0.7-4 Length and Mass (Plate-type Flat Welding Flange) of Hexagon Head Bolts and Studs for PN10
Flanges
Nominal dimension
DN Screw thread Quantity n
Hexagon head bolts and studs
LSR(mm) Mass (kg) LZR(mm) Mass (kg)
10 M12 4 50 60 65 52
15 M12 4 50 60 65 52
20 M12 4 50 60 70 56
25 M12 4 50 60 70 56
32 M16 4 60 141 85 136
40 M16 4 60 141 85 136
50 M16 4 65 149 85 136
65 M16 8 65 149 90 144
80 M16 8 65 149 90 144
100 M16 8 70 157 95 152
125 M16 8 70 157 95 152
150 M20 8 80 282 105 252
200 M20 8 80 282 105 252
250 M20 12 80 282 110 264
300 M20 12 80 282 110 264
350 M20 16 85 294 115 276
400 M24 16 100 518 135 486
450 M24 20 105 536 140 504
500 M24 20 110 554 145 522
600 M27 20 120 779 160 736
Note. 1 The bolting mass is the approximate total mass of every 1000 pieces ones.
2 The bolting length excludes the thickness of the gasket.
Table 5.0.7-6 Length and Mass (Plate-type Flat Welding Flange) of Hexagon Head Bolts and Studs for PN25
Flanges
Nominal dimension
DN Screw thread Quantity n
Stud
LZR(mm) Mass (kg)
10 M12 4 65 52
15 M12 4 65 52
20 M12 4 70 56
25 M12 4 70 56
32 M16 4 85 136
40 M16 4 85 136
50 M16 4 90 144
65 M16 8 95 152
80 M16 8 95 152
100 M20 8 110 264
125 M24 8 125 450
150 M24 8 130 468
200 M24 12 135 486
250 M27 12 145 667
300 M27 16 150 690
350 M30 16 165 924
400 M33 16 180 1224
450 M33 20 190 1292
500 M33 20 200 1360
600 M36×3 20 230 1840
Note. 1 The bolting mass is the approximate total mass of every 1000 pieces ones.
2 The bolting length excludes the thickness of the gasket.
Table 5.0.7-7 Length and Mass (Plate-type Flat Welding Flange) of Hexagon Head Bolts and Studs for PN40
Flanges
Nominal dimension
DN Screw thread Quantity n
Stud
LZR(mm) Mass (kg)
10 M12 4 65 52
15 M12 4 65 52
20 M12 4 70 56
25 M12 4 70 56
32 M16 4 85 136
40 M16 4 85 136
50 M16 4 90 144
65 M16 8 95 152
80 M16 8 95 152
100 M20 8 110 264
125 M24 8 125 450
150 M24 8 130 468
200 M27 12 145 667
250 M30 12 165 924
300 M30 16 175 980
350 M33 16 200 1360
400 M36×3 16 210 1680
450 M36×3 20 225 1800
500 M39×3 20 245 2303
600 M45×3 20 290 3596
Note. 1 The bolting mass is the approximate total mass of every 1000 pieces ones.
2 The bolting length excludes the thickness of the gasket.
Table 5.0.7-9 Length and Mass (Plate-type Flat Welding Flange) of Hexagon Head Bolts and Studs fo...
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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