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Help CenterSteel Pipe Supplier– Seamless & Welded OD 5-256mm | WT 0.8-25mm | Carbon & Alloy Steel
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Steel Pipe Supplier– Seamless & Welded
OD 5-256mm | WT 0.8-25mm | Carbon & Alloy Steel
Product Overview
Steel pipe in seamless and welded (ERW) construction. Available in carbon steel and alloy steel (Cr-Mo). OD from 5mm to 256mm, wall thickness from 0.8mm to 25mm.
✅ Seamless or ERW welded – both available
✅ Carbon steel & alloy steel
✅ Multiple standards – ASTM, API, EN, GB
✅ 100% hydrostatic tested
✅ EN 10204 3.1 MTC with heat number
✅ Factory direct | Global shipping
Key Specifications
| Parameter | Value |
|---|---|
| OD | 5 – 256 mm |
| WT | 0.8 – 25 mm |
| Length | 4 – 12 m |
| Manufacturing | Seamless / ERW Welded |
| Materials | Carbon Steel, Alloy Steel (Cr-Mo) |
Quick Grade Selection
| Application | Grade | Standard |
|---|---|---|
| General fluid | 20#, A106 Gr.B | GB/T 8163, ASTM A106 |
| High pressure boiler | 20G, A192 | GB/T 5310, ASTM A192 |
| Superheater | T11, T22, T91 | ASTM A213 |
| Oil & gas pipeline | X52, X65, X70 | API 5L |
| High temp alloy | P11, P22, P91 | ASTM A335 |
| Low temperature | A333 Gr.6, Gr.8 | ASTM A333 |
| Hydraulic cylinder | E355, ST52 | EN 10305, DIN 2391 |
| Structural | Q345, S355J2H | GB/T 8162, EN 10210 |
Most Popular Sizes
| OD (mm) | WT (mm) | Application |
|---|---|---|
| 60.3 | 3.0 – 5.0 | Fluid lines |
| 88.9 | 4.0 – 6.0 | Boiler tubes |
| 114.3 | 5.0 – 8.0 | Pipeline |
| 168.3 | 6.0 – 10.0 | Steam lines |
| 219.1 | 6.0 – 12.0 | Headers |
Applications
Oil & gas pipelines | Power plant boilers | Petrochemical process piping | Hydraulic cylinders | Construction structures | Low temperature services
Contact
📧 Email: yjhtrade@gmail.com
📞 WhatsApp: +86 15106174543
🌐 Website: /
Tags: Steel Pipe Seamless Steel Pipe ERW Steel Pipe Carbon Steel Pipe Alloy Steel Pipe ASTM A106 API 5L
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