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ASTM 8620

ASTM 8620

ASTM 8620 Alloy Steel
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ASTM 8620 Alloy Steel



Material Name


Material Name: ASTM 8620
Execution standard: ASTM A29/A29M-04


Chemical Composition


C
 Si Mn S P
 		Cr Cu
 Mo
0.18-0.23
 0.15-0.35 0.70-0.90
 Max 0.035 Max 0.035
 0.40-0.70 Max 0.030 0.15-0.25

Mechanical Properties


Yield Strength
σs 0.2 (MPa)
Elongation
δ 5 (％)
reduction of crosssection area
ψ (％)
 ballistic work
Akv (J) 		pounding toughness value
αkv (J/cm2)
 specimen size
Min 785 Min 9 Min 40
 Min 47
 Min 59
 15mm

specification of heat treatment and metallurgical structure


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

Delivery State


In the heat treatment (quenching, annealing or tempering) or heat treatment delivery, delivery status should be indicated in the contract.