GB/T 33958-2017 in English
SUPERSEDEDWire rods for pipe line steel SAW electrodes
- Issued on:2017-07-12
- Implemented on:2018-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$136.00
| Standard No: | GB/T 33958-2017 |
| Document status: | SUPERSEDED |
| Superseded by: |
GB/T 3429-2025 Wire rods for welding
|
| Superseded on: | 2026-03-01 |
| Title in English: | Wire rods for pipe line steel SAW electrodes |
| Title in Chinese: | 管线钢埋弧焊丝用钢盘条 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2017-07-12 |
| Implemented on: | 2018-04-01 |
| ICS Classification: | 77.140.60-Steel bars and rods |
| Chinese Classification: | H44-Profile steel and deformed steel |
| Professional Classification: | GB-National Standard |
| Related Keywords: | steel wire rod
wire rod wire rods submerged arc welding wire pipe line steel saw |
| Related Topics: | welding wire
pipeline steel pipeline steel Submerged arc welding wire GBT33958 GB/T 33958-2017 Submerged arc welding wire and flux for ships Military steel wire pipe |
《GB/T 33958-2017管线钢埋弧焊丝用钢盘条》由TC183（全国钢标准化技术委员会）归口，TC183SC3（全国钢标准化技术委员会盘条及钢丝分会）执行，主管部门为中国钢铁工业协会。
Introduction
1. Standard Overview
GB/T 33958—2017 "Steel Wire Rod for Submerged Arc Welding Wire of Pipeline Steel" standard specifies the brand, ordering content, size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of steel wire rod for submerged arc welding wire of pipeline steel, and is applicable to steel wire rod for submerged arc welding wire of pipeline steel.
2. Comparison of standard frameworks
| Standard dimensions | GB/T 33958—2017 | Related international standards | Comparison of industry standards |
|---|---|---|---|
| Grade designation method | H08MnMoTiBG, etc. | AWS A5.17, JIS Z3351 | Corresponding to GB/T 3429—2015 |
| Chemical composition requirements | C: ≤0.10%, Mn: 0.80~1.10%, etc. | Meet API 5L requirements | Consistent with ASTM A376 |
| Mechanical properties | Tensile strength ≥520MPa, cross-sectional reduction ≥40% | Requirements for steel pipes of the same grade | Higher than enterprise standard requirements |
3. Interpretation of key technical points
3.1 Brand representation method
The brand consists of four parts: the first letter of the Chinese pinyin for "welding" (H), the average carbon content (C), the main alloying elements and "for pipeline steel" (G). For example: H08MnMoTiBG, where:
- H - welding
- 08 - average carbon content ≤0.10%
- MnMoTiB - main alloying element
- G - for pipeline steel
3.2 Chemical composition requirements
Table 1 lists the chemical composition requirements for each grade. The main controlled elements include carbon (C), manganese (Mn), molybdenum (Mo), titanium (Ti), boron (B), etc. Take H08MnMoTiBG as an example:
- C: 0.04~0.10%
- Mn: 1.40~1.80%
- Mo: ≤0.10%
- Ti: 0.01~0.12%
- B: 0.002~0.008%
3.3 Mechanical properties requirements
Table 2 specifies the inspection items and test methods for wire rods, including tensile test, non-metallic inclusion detection and metallographic structure inspection:
| Serial number | Inspection item | Sampling quantity | Sampling location | Test method |
|---|---|---|---|---|
| 1 | Chemical composition | 1 piece/batch | GB/T20066 | GB/T223 series |
| 2 | Tensile test | 2 pieces/batch | GB/T2975 | GB/T 228.1 |
3.4 Surface quality requirements
The surface of the wire rod should be smooth, without defects such as cracks and folds. The depth of local indentations and bulges should not exceed 0.10mm.
4. Implementation suggestions
- Purchasing stage: Clarify the order content, including product name, brand, nominal size and special requirements, to ensure that both the supply and demand parties reach an agreement on the quality standards.
- Production stage:Smelting and rolling should be carried out strictly in accordance with the chemical composition and process flow specified in the standard. It is recommended to use converter or electric furnace smelting, and control the final rolling temperature to ensure the mechanical properties.
- Inspection stage:Establish a complete quality inspection system and equip with necessary testing equipment (such as spark spectrometer, tensile testing machine, etc.) to ensure that the chemical composition and mechanical properties meet the standard requirements.
- Application stage:Select the appropriate brand of wire rod according to the welding process requirements, and refer to the comparison table in Appendix A to select the international general model to improve the quality of the weld.
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