Mandrel is one of the key instruments to manufacture seamless steel tubes.
Mandrel is one of the key instruments to manufacture seamless steel tubes.our cooperated enterprise equipped with the full production line including melting, forging, machining, heat treatment and chrome-plating in China.
Our company is capable of producing a series of mandrel, such as MPM, PQF, FQM, with the diameter of Φ80-500mm, the length of 2500-17500mm, as a result of making the best use of our advantage in steel making, forging, heat treatment, machining plating chromium adequately. The raw steel material is AISI H13 or X35CrMoV51 or 4CrMoSiV1, based on enterprise specifications. Our mandrels have been exported to Italy, Argentina, Mexico,America, India,Saudi Arabia and Russia.
Mechanical Properties
Specification | Tensile intensity σb (MPa) | Yield intensity σ0.2 (MPa) | Elongation δ5 (MPa) | Reduction ratio Ψ (%) | Impact Akv (J) | Hardness HB |
≤200mm | 1127-1274 | ≥931 | ≥8 | ≥25 | ≥20 | 350-390 |
>200mm | 1078-1274 | ≥882 | ≥8 | ≥25 | ≥20 | 330-375 |
