Partners save 15% on every standard

Valid

GB/T 39281-2020Wire electrodes, wires, rods and deposits for gas shielded arc welding of high strength steels (English PDF)

Also coversGBT39281-2020

Open the GB/T 39281-2020 preview as PDF

Preview — first pages of GB/T 39281-2020

This is a limited preview

Buy now to download the full PDF

Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

November 19, 2020

Implementation date

June 1, 2021

Scope

GB/T 39281-2020 (Wire electrodes, wires, rods and deposits for gas shielded arc welding of high strength steels) is available as an English-translated PDF.

GB/T 39281-2020 — This standard specifies the types, technical requirements, test methods, retest and supply of high-strength steel solid wires and filler wires for gas shielded arc welding. Goods, technical conditions, etc. This standard is applicable to molten metal gas shielded arc welding and tungsten inert where the minimum tensile strength requirement value of deposited metal is greater than 570MPa High-strength steel solid welding wire and filler wire (hereinafter referred to as "welding wire") for gas shielded arc welding.

Document preview — GB/T 39281-2020

National Standard of the People's Republic of China

ICS: 25.160.20
Classification: J 33

Issued by: State Administration for Market Regulation, China National Standardization Administration

1 Scope1
2 Normative references1
3 Model1
4 Technical requirements3
5 Test method7
6 Reinspection8
7 Technical supply conditions8
Appendix A (informative appendix) The structural changes of this standard compared with ISO 16834.20129
Appendix B (informative appendix) The technical differences between this standard and ISO 16834.2012 and the reasons10
Appendix C (informative appendix) Welding wire model comparison11

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard uses the redrafting method to amend and adopt ISO 16834.2012 "Classification of welding materials for high-strength steel gas shielded arc welding wires and deposited metals".

Compared with ISO 16834.2012, this standard has many adjustments in structure. Appendix A lists this standard and ISO 16834.2012

A list of changes in chapter numbers.

Compared with ISO 16834.2012, this standard has technical differences. Appendix B gives a list of corresponding technical differences and their reasons.

This standard also made the following editorial changes.

--- Modify the standard name to "High-strength steel solid wire for gas shielded arc welding";

---Added Appendix C (informative appendix) welding wire model comparison.

Drafting organizations of this standard. Harbin Welding Research Institute Co., Ltd., Tianjin Bridge Welding Materials Group Co., Ltd., Shandong Suolide Welding Materials Co., Ltd.

Co., Ltd., Kunshan Jingqun Welding Materials Technology Co., Ltd., Tianjin Jinqiao Welding Materials Group Co., Ltd., Wuhan Tiejiao Welding Materials Co., Ltd.

Co., Ltd., Changzhou Zhengyang Welding Materials Co., Ltd., Shanghai Welding Equipment Co., Ltd., Shanghai Atlantic Welding Materials Co., Ltd., Kazakhstan

Huatong (Changzhou) Welding Co., Ltd., Xiamen Yinduli Industrial Co., Ltd., Baoji Petroleum Steel Pipe Co., Ltd. (National Petroleum

Natural Gas Pipe Engineering Technology Research Center), Foshan Yingli Auto Parts Co., Ltd., Foshan Sanyou Auto Parts Manufacturing Co., Ltd.

1 Scope

This standard specifies the types, technical requirements, test methods, retest and supply of high-strength steel solid wires and filler wires for gas shielded arc welding.

Goods, technical conditions, etc.

This standard is applicable to molten metal gas shielded arc welding and tungsten inert where the minimum tensile strength requirement value of deposited metal is greater than 570MPa

High-strength steel solid welding wire and filler wire (hereinafter referred to as "welding wire") for gas shielded arc welding.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.

For undated references, the latest version (including all amendments) applies to this document.

GB/T 2650 Welded joint impact test method (GB/T 2650-2008, ISO 9016.2001, IDT)

GB/T 2652 Weld and deposited metal tensile test method (GB/T 2652-2008, ISO 5178.2001, IDT)

GB/T 3323.1 Non-destructive testing of welds. Radiographic testing. Part 1.X and gamma ray film technology

GB/T 18591 Guide for the measurement of welding preheat temperature, interpass temperature and preheat maintenance temperature (GB/T 18591-2001,

ISO 13916.1996, IDT)

GB/T 25774.1 Inspection of welding materials Part 1.Preparation and inspection of mechanical properties of steel, nickel and nickel alloy deposited metals

GB/T 25775 Technical Conditions for Supply of Welding Materials Product Type, Size, Tolerance and Marking

GB/T 25778 Guidelines for Procurement of Welding Materials

GB/T 37910.1-2019 Non-destructive testing of welds, radiographic inspection acceptance level Part 1.Steel, nickel, titanium and their alloys

GB/T 39255-2020 Shielding gas for welding and cutting (ISO 14175.2008, MOD)

3 Model

3.1 Model division

The type of welding wire is classified according to the welding method, the mechanical properties of the deposited metal, the state after welding, the type of shielding gas and the chemical composition of the welding wire.

Refer to Appendix C for the comparison of solid welding wire types between this standard and other related standards.

3.2 Model preparation method

The welding wire model consists of five parts.

1) Part 1.Use the letter "G" to indicate solid wire for MIG welding, and "W" for tungsten inert gas shielded wire

Solid filler wire for arc welding;

2) The second part. indicates the code for the tensile strength of the deposited metal under the conditions of welding and post-weld heat treatment, see Table 1;

3) The third part. indicates the test temperature code when the impact absorption energy (KV2) is not less than 27J, see Table 2;

4) Part 4.Represents the code of the protective gas type, and the code of the protective gas type is in accordance with the provisions of GB/T 39255; when the first part is

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

Referenced standards

Normative references

ISO 9016.2001 · ISO 5178.2001 · GB/T 3323.1 · GB/T 18591 · GB/T 18591-2001 · ISO 13916.1996 · GB/T 25775 · GB/T 25778 · GB/T 37910.1-2019 · ISO 14175.2008

Cited by

How to Buy GB/T 39281-2020

1Add to cart. Click the "Buy GB/T 39281-2020" button on this page. You can add more standards before checkout.
2Checkout. Enter your email and billing details. Payment is processed securely by Stripe (cards, Apple Pay, Google Pay supported).
3Instant delivery (0–9 sec). Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4Invoice included. A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.