Shanghai Jieteng Precision Mold Factory

Shanghai Jingteng Metal Group Co., Ltd.

   
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SNCM439

SNCM439

SNCM439 Alloy Steel
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Thickness：
Diameter：
  
SNCM439 Alloy Steel



Material Name


Material Name: SNCM439
Execution standard: JIS G4053-2003

Chemical Composition


C Si Mn S P Cr Ni Cu Mo
0.36-0.43
 0.15-0.35 0.60-0.90 Below 0.025 Below 0.025
 0.60-1.00 1.60-2.00 Below 0.025 0.15~0.30

Mechanical Property


Tensile strength
σb (MPa) 		Yield Strength
σs 0.2 (MPa)
Elongation
δ 5 (％)
reduction of crosssection area
ψ (％)
 ballistic work
Akv (J) 		pounding toughness value
αkv (J/cm2)
         Hardness
(HB)
specimen size
Min 980 Min 835 Min 12 Min 55
 Min 78
 Min 98
   Max 269 25mm

specification of heat treatment and metallurgical structure


Specification of heat treatment : hardening 850℃, oil cooling, tempering 600℃, water cooling, oil cooling.

Delivery State


Heat treatment (normalizing, annealing or high temperature tempering) or non heat treatment state of delivery, the delivery state should be indicated in the contract.