API 5L GR.A Carbon Steel Line Pipe
GNEE provides precision-engineered API 5L GR.A PSL Carbon Steel Pipes at cost-effective prices for various engineering applications.
API 5L GR.A steel pipe has a low carbon content and is easy to weld, making it ideal for manufacturing pipe fittings and other pipeline components. It can be applied to seamless steel pipes and welded steel pipeline line pipes. In addition, although API 5L GR.A cannot be used in high-pressure pipeline systems, it can be applied to low-pressure work, such as water pipelines.
API 5L A-grade pipeline line pipe is the highest grade of steel that can be used for this application. Steels with higher carbon content are divided into Grade B, X42, X46, X52, X56, X60, X65, X70 and X80.
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API 5L A Seamless Line Pipe Specification:
| Standards | API 5L |
|---|---|
| Grade | API 5L Gr A, B, X42, X46, X52, X56, X60, X65, X70, PSL 1/ 2, ETC |
| Size | Seamless = ½" NB – 24" NB ERW = 16" OD - 120" OD |
| Thickness | 6.35mm – 65mm |
| Length | Single Random & Double Random |
| End | Plain End, Beveled End, Threaded |
API 5L Class A Pipe Tolerances
| O.D. Tolerance | W.T. Tolerance | ||
|---|---|---|---|
| Grade A | |||
| D < 60.3mm | +0.41/-0.40mm | D < 73mm | +20%/-12.5% |
| D ≥ 60.3m | +0.75/-0.40mm | D ≥ 73mm | +15%/-12.5% |
Low Carbon Steel Line Pipe

Why choose us
Gnee company covers an area of 35,000 square meters and has more than 200 employees, including 80 technical staff. We have established an effective and complete quality control and assurance system. The company has also obtained ISO9001 quality system certification.
Gnee product certificate

FAQ
1. Steel pipes come in a wide range of shapes and sizes, with more choices.
2. Professional and experienced production staff provide excellent quality.
3. Strong production capacity to ensure fast delivery.
4. Mass production and raw material resources create good prices.
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