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Product Name |
20CrNi4 Alloy Piercing Mandrel |
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Brand |
Hengdisheng |
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Materials |
20CrNi4 forged material |
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Dimension size range |
Φ105-Φ500( mainly used for large piercer plug) |
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Hardness |
260-320HB |
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Surface Processing |
Nitriding oxidization with required thickness |
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Application |
Pierce mill |
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Threading |
available |
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Steel pipes grade |
alloy steel |
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Chemical composition |
C:0.17-0.23; Mn:0.45-0.65;Si:0.45-0.65;Cr:1.5-1.8;Mo:0.35-0.45; |
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Service |
OEM, ODM, sampling, testing, CNC machining, packing, design |
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Surface Treatment |
Nitriding oxidation, oxide layer thickness: 0.3-0.4mm |
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20CrNi4 Alloy Piercing Mandrel is one of the most common material for piercing plug. The quality of the piercing mandrel defines the inner condition of the seamless pipe. For seamless pipe factories in domestic market and overseas, piercing mandrel procuring movements are very important. Under valuable concern, Hengdisheng group provide full inspection services to ensure quality and production control.
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20CrNi4 Production and Quality control process(Contact us for details):
Raw material procuring ---- Chemical composition test --- Smelting -- casting -- demoulding -- heating -- forging -- annealing -- CNC machining -- heat-treatment -- inspection -- packing -- warehousing
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http://www.hdsnm.com/