Audited Supplier
1. Approved class: ABS, BV, CCS, DNV, GL, NK, LR, RINA
2. Standard: GB/T5312, EN10297, DIN2391
3. Sizes: 33.4 to 219mm
4. Warranty: one year from delivery
We're specialized in supplying all kinds of marine seamless & welded pipes. Our pipes are approved by GL, BV, ABS, LR, DNV, CCS, RINA, BV, NK. The products meet GB/T5312-2009 standard and the requirements of Class.
| Standard | O.D (mm) | Tolerance (mm) | W.T (mm) | Length (mm) |
| GB/T5312 EN10297 DIN2391 | 33.4~48.3 | +/-0.3 | 30 | up to 12000 |
| Ditto | 48.3~219 | +/-0.8 | Ditto | Ditto |
1.products information
Specification | 1.Outer Diameter:10-500mm 2.Wall Thickness:2-50mm 3.Length:3-18mm |
Material | 10#20#45#16Mn A106 Gr A,B,A53 Gr B, |
Standards | 1. ASTM:ASTM A106GR.A; ASTM A106GR.B; ASTM A53GR.A; ASTM A53GR.B; 2. JIS: G3452;G3457; G3454; G3456; G3461; G3455; STPG38; STS42; STS49; STPT49 3. DIN:ST33;ST38;ST35;ST42;ST45;ST52.4;ST52; TT St35N;10Ni14;15Mo3 4. API:APL 5LAPI 5CT ;API LINE PIPE and so on |
Certificates | 1. Environmental Management System Certificate 2. Quality Systerm Certificate 3. API 4. ISO 5. Other certificates |
Usage Range | 1. structral pipe 2. oil or gas transportation 3. fluid pipe 4. line pipe 5. drill pipe 6. boiler pipe |
Advantage | 1.Reasonable price with excellent quality 2.Abundant stock and prompt delivery 3.Rich supply and export experience, sincere service 4.Reliable forwarder, 2-hour away from port. |
2. Chemical Composition
| Chemical Composition | 201 | 202 | 301 | 304 | 316 | 430 |
| C | ≤0.08 | ≤0.06 | ≤0.06 | ≤0.06 | ≤0.08 | ≤0.12 |
| S | ≤0.02 | ≤0.02 | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.03 |
| P | ≤0.075 | ≤0.06 | ≤0.045 | ≤0.035 | ≤0.045 | ≤0.04 |
| Mn | 8.5-10.5 | 8.5-10.5 | ≤2.0 | ≤2.0 | ≤2.0 | ≤1.0 |
| Si | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 |
| Cr | 14-15 | 14-16 | 16-18 | 17-20 | 16-18 | 16-18 |
| Ni | 0.8-1.2 | 4--6 | 4--7 | 8--12 | 12--16 | ≤0.05 |
