ASTM A53 Seamless Black Steel Pipe
Specifications
Standard:ASTM A53Material:Gr.A,Gr.B
Size:12.7*1.2-813*50
Manufacture:cold drawn,hot rolled
Heat treating:normalized
Commodity: ASTM A53 seamless black steel pipe
Manufacture method: cold rolled, cold drawn,hot rolled, hot expanded.
Standard specification and material: ASTM A53 Gr.A, Gr.B
Size range: 12.7mm*1.2mm - 914mm*50mm
Delivery condition: normalized
Chemial composition of ASTM A53:
| Element | C | Si | Mn | P | S |
| Gr.A | 0.25% max | 0.10% min | 0.95% max | 0.035% max | 0.035% max |
| Gr.B | 0.30% max | 0.10% min | 1.20% max | 0.035% max | 0.035% max |
Mechanica properties of ASTM A53 tubes:
| Gr.A | Gr.B | |
| Tensile strength: | 330 Mpa min | 415 Mpa min |
| Yield strength: | 205 Mpa min | 240 Mpa min |
| Elongation: | 30% min | 30% min |

Packing: bundle packing, black paiting or varnish or oil coating, end plastic caps.
Marking: as per customer's requirement.
Shipping: by containers
We supply tubes based on FOB,CFR,CIF,as well as DAP term.
Payment method: 30% deposit,balance before shipment or against copy of B/L or L/C at sight.
MOQ: 5 tons for each size.
Warranty: 1 year after shipment of tubes.
Third party inspection or customer's inspection is acceptable.
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