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HG/T 20613-2009Bolting for use with steel pipe flanges (PN designated) (English PDF)

钢制管法兰用紧固件(PN系列)

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Issued by

Ministry of Industry and Information Technology of the People's

Level / Type

National · Recommended

Issue date

February 5, 2009

Implementation date

July 1, 2009

Scope

HG/T 20613-2009 is the English-translated version of 钢制管法兰用紧固件(PN系列).

HG/T 20613-2009 — 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.

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Document preview — HG/T 20613-2009

National Standard of the People's Republic of China

Issued by: Ministry of Industry and Information Technology of the People's

1. Scope
2. Normative references
3. Pattern, specification and dimension of bolting
4. Materials
5. Bolting service
6. Dimension tolerance
7. Surface treatment
8. Inspection
9. Acceptance, packaging and quality certificate
10. Marking and labeling
Appendix A (Informative) Flap Gasket for Pipe Flange Bolting
Appendix B (informative) Bolting and Bolting Insulation Parts for Insulating Flange
1. Scope

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...

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 10 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T197 · GB/T 3103.1 · GB/T 5133

Cited by

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