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Seamless steel pipe is a long strip of steel with a hollow section and no seams around it. It is widely used in the transportation of oil, natural gas, coal gas, water and certain solid materials. Compared with other steel pipes, seamless steel pipes have strong advantages in bending resistance.
Seamless steel pipe has excellent mechanical properties and is easy to machine.Seamless steel pipe is light in weight, its weight is only 1/5 of square steel.Seamless steel pipes are highly elastic, can be used repeatedly in machinery and equipment, have no memory, do not deform, and are antistatic.The tensile strength of seamless steel pipe is more than 8-10 times that of ordinary steel, the elastic modulus is better than steel, and it has excellent creep resistance, corrosion resistance and earthquake resistance;Seamless steel pipe corrosion resistance: resistant to acid, alkali, salt and atmospheric environment corrosion, high temperature resistance, good impact resistance and fatigue resistance, no regular maintenance required, effective service life of more than 15 years;| Element | Composition Range (%) |
|---|---|
| Carbon (C) | 0.08 - 0.15 |
| Silicon (Si) | 0.10 - 0.35 |
| Manganese (Mn) | 0.40 - 0.70 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.020 |
| Chromium (Cr) | 0.80 - 1.25 |
| Molybdenum (Mo) | 0.44 - 0.65 |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 450 MPa |
| Yield Strength | ≥ 280 MPa |
| Elongation | ≥ 20% |
| Hardness (HB) | ≤ 197 (for normalized tubes) |
| Property | Specification |
|---|---|
| Outer Diameter | 6mm to 219mm |
| Wall Thickness | 1mm to 30mm |
| Length | 5.8m, 6m, 11.8m, 12m, or as required |
| Steel Grade | 10CrMo910, 13CrMo44, 15Mo3, etc. |
| Manufacturing | Hot-finished or cold-finished process |
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