Seamless Steel Pipe

No weld seam, high pressure capacity — oil, chemical, power, boiler and high-temperature service.
| Category | Pipes & Tubes |
|---|---|
| Standards | GB, ASTM, EN, JIS, AS/NZS, GOST |
| Material / grades | 20#, 45#, Q345B, 20G, A106 Gr.B, API 5CT, 304, 316L |
| Common sizes | Φ57×3.5, Φ76×4.0, Φ89×4.0, Φ108×4.5 |
| Length | 6m / 9m / 12m (custom) |
| Surface | Hot-Rolled, Pickled |
| Lead time | Stock orders dispatched same day; processed orders 3–5 days; custom orders scheduled on confirmation |
| Trade terms | EXW, FOB, CFR, CIF, DDP |
Detail Information
1. Seamless Steel Pipe — Overview
No weld seam, high pressure capacity — oil, chemical, power, boiler and high-temperature service.
2. Specifications
| Length | 6m / 9m / 12m, customizable |
|---|---|
| Surface | Black / pickled / phosphated / galvanized |
| Material | 20#, 45#, Q345B, 20G, 12Cr1MoVG, 304, 316L / A106 Gr.B, API 5CT, A312 |
| Standard | GB/T 8162, GB/T 5310, ASTM A106, API 5CT, ASTM A312, EN 10216, JIS G 3454 |
| Size range | OD 6–630mm, WT 1–40mm (SCH10–SCH160) |
3. Material Grades & Standards
We supply this product in the following grades. Other grades and standards can be sourced on request.
- 20#
- 45#
- Q345B
- 20G
- A106 Gr.B
- API 5CT
- 304
- 316L
- GB
- ASTM
- EN
- JIS
- AS/NZS
- GOST
4. Applications
- Oil & gas
- Manufacturing
- Infrastructure
5. Product Photos




6. Why Order From Shanghai Banzhijia Steel
- 20,000+ tons of ready stock across every product category
- Cutting, slitting, levelling and processing to your size
- Mill Test Certificates and export documents with each order
- Ocean freight or China–Europe rail to more than 20 countries
- Order-specific specification confirmation
- Inspection documents coordinated according to order requirements
7. Packing & Shipping
We coordinate ocean freight or China–Europe rail to the agreed destination, and prepare commercial invoices, packing lists, certificates of origin, bills of lading and Mill Test Certificates for each order.



