Mandrel bar is the pipe molds for seamless pipe
Manufacturing price and excellent quality
Material: H13 & 42CrMo
Diameter: 80-450mm
Length: 2500-17500mm
Mandrel is one of the key instruments to manufacture seamless steel tubes. Our company is capable of producing a series of mandrel, such as MPM, PQF, FQM, with the diameter ofΦ80-450mm, 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 4CrMoSiV1, based on enterprise specifications.
Mechanical property
|
Specification
|
Tensile intensity
σb
(MPa)
|
Yield intensity
σ0.2
(MPa)
|
Elongation
δ5
(MPa)
|
Ψ
(%)
|
Akv
(J)
|
Hardness
HB
|
|
less and equal200mm
|
1127-1274
|
≥931
|
≥8
|
≥25
|
≥20
|
350-390
|
|
over 200mm
|
1078-1274
|
≥882
|
≥8
|
≥25
|
≥20
|
330-375
|