We optimize ASTM A53 Grade B Pipes designs for corrosion resistance and load-bearing capacity, even in extreme temperatures.
Xi 'An QinSteel Trading Co., Ltd specializes in manufacturing and supplying ASTM A53 Grade B Pipes for industrial bulk procurement. With ISO 9001-certified production, API 5L compliance, and 24/7 logistics support, we deliver seamless and welded pipes trusted in construction, oil & gas, and infrastructure projects worldwide. Our GMP-certified facilities ensure every pipe meets rigorous ASTM/ASME standards while offering customization for unique project needs.
The products are versatile carbon steel pipes designed for structural support, mechanical systems, and low-to-medium pressure applications. Available in seamless (SMLS) or electric resistance welded (ERW) constructions, these pipes combine high tensile strength (≥415 MPa) with excellent weldability. They comply with ASME B36.10M and EN 10216-1 standards, making them ideal for global infrastructure projects requiring reliable performance under stress.
| Parameter | Details |
|---|---|
| Type | Seamless / Welded (ERW) |
| Size Range | 1/8" to 80" (10.3mm – 2032mm) |
| Thickness | SCH5s to XXS |
| Length | 1m – 12m (customizable) |
| Ends | Plain, Bevelled, Threaded, Grooved |
| Standards | ASTM A53 Gr.B, API 5L, EN 10216-2 |
✅ Dual Manufacturing Options: Choose cost-effective ERW pipes or seamless variants for high-pressure systems.
✅ Global Compliance: Meets ASTM, ASME, and EN standards for cross-border projects.
✅ Full Customization: Threading, galvanizing, epoxy coatings, and non-standard lengths available.
✅ Bulk Inventory: 50,000-ton annual capacity ensures fast delivery of SCH40, SCH80, and other common schedules.
✅ Quality Assurance: Hydrostatic testing, ultrasonic inspection, and 100% dimensional checks.
We optimize ASTM A53 Grade B Pipes designs for corrosion resistance and load-bearing capacity, even in extreme temperatures.
Our strategically stocked warehouses in Asia, Europe, and the Middle East reduce lead times to 7–15 days.
Reinforced steel bundles with anti-rust VCI packaging protect pipes during ocean freight or road transport.
Every batch undergoes hydrostatic tests (≥1000 psi) and eddy current inspections to eliminate defects.



Q: Do your pipes include API 5L certification?
A: Yes. All the products come with API 5L, ISO 9001, and EN 10204 3.1 certifications.
Q: Can I order threaded pipes for mining projects?
A: Absolutely. We provide threaded-and-coupled ends per ASME B1.20.1 specifications.
Q: What's the MOQ for bulk orders?
A: 20 metric tons, with discounts for 100+ ton orders.
Q: How do you ensure dimensional accuracy?
A: Laser-guided cutting and automated wall thickness monitoring guarantee ±0.5mm precision.
Q: Do you offer corrosion-resistant coatings?
A: Yes. Options include FBE, 3LPE, and galvanizing for harsh environments.
📧 Email: info@sxqinsteel.com
Request a quote or certification package today!
Trusted by distributors in 30+ countries, Xi 'An QinSteel delivers ASTM A53 Grade B Pipes that balance quality, compliance, and cost-efficiency. Let’s build your next project on a solid foundation.
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