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ASTM5115 Alloy Steel

ASTM5115 Alloy Steel

ASTM5115 Alloy Steel
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ASTM5115 Alloy Steel



Material Name


Material Name: ASTM5115
Execution standard: ASTM A29/A29M-04

Characteristics and scope of application


It is commonly used low carbon alloy permeability steel, cold deformation plasticity is high, good weldability, cutting performance is good under annealing condition. used as permeability parts with fast working speed and small section, the heart is of high toughness, such as bushings, crank pin, piston pin, piston ring, coupling, and high working speed of gear, cam, shaft and bearing ring and ship host with screws and small parts of locomotive, steam turbine rings, etc. 


Chemical Composition 


C Si Mn S P Cr Ni Cu
0.13～0.18 0.15～0.35 0.70～0.90 Below 0.035 Below 0.035
 0.70～0.90 Below 0.030 Below 0.030

 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 735 Above 490 Above 11 Above 45
 Above 55
 Above 69
   Below 179 15mm

specification of heat treatment and metallurgical structure

 
Specification of heat treatment : hardening, 880℃ for the first time, 780～820℃ for the second time, water cooling, oil cooling; tempering, 200℃, 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.