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retained mandrel bars for seamless pipe

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price: Negotiable
minimum:
Total supply:
Delivery term: The date of payment from buyers deliver within days
seat: Beijing
Validity to: Long-term effective
Last update: 2017-12-23 07:53
Browse the number: 146
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Product details

Mandrel bar is the pipe molds for seamless pipe

Packing: Plastic bags or as u required

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
 
We can supply high quality H13 mandrel and mandrel extension part of 42CrMo. Forged and rolled bars can be supplied for 42CrMo.

Mandrel extension part
Steel grade: 42CrMo or according to customer's requestment.
Standards: chemical composition as per GB3077, others as per detailed drawing picture.
Hardness: hardness is 280-320HB after quenched and tempered.
 

Mandrel tail part
Steel grade: 42CrMo
Standard: cheimical compositon as per GB3077-2001, and other details can be as per customer's
                drawing pictures.
Process: machining + heat treatment
Hardness: 280-320 after heat treatment.
 
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