Shanghai Jieteng Precision Mold Factory

Shanghai Jingteng Metal Group Co., Ltd.

   
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ASTM8620 Alloy Steel

ASTM8620 Alloy Steel

ASTM8620 Alloy Steel
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Thickness：
Diameter：
  
ASTM8620 Alloy Steel



Material Name


Material Name: ASTM8620
Execution standard: ASTM A29/A29M-04

Chemical Composition 


C Si Mn S P Cr Ni Cu Mo
0.18～0.23 0.15～0.35 0.70～0.90 Below 0.035 Below 0.035
 0.40～0.60 0.40～0.70 Below 0.030 0.15～0.25

 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 
Above 980 Above 785 Above 9 Above 40
 Above 47
 Above 59
   Below 197 15mm

specification of heat treatment and metallurgical structure

 
Specification of heat treatment : normalizing 850℃, oil cooling; tempering 200℃, air 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.