Shanghai Jieteng Precision Mold Factory

Shanghai Jingteng Metal Group Co., Ltd.

   
Product
Article
Search
NameDescriptionContent
Product center
  
  
  
location：
HOME ≡ Special Steel ≡ Alloy Steel ≡ American Standard Alloy Steel ≡ ASTM1340 Alloy Steel
PRODUCT CENTER
Contact us
ASTM1340 Alloy Steel

ASTM1340 Alloy Steel

ASTM1340 Alloy Steel
￥ 0.00
0.00
Thickness：
Diameter：
  
ASTM1340 Alloy Steel




Material Name


Material Name: ASTM1340
Execution standard: ASTM A29/A29M-04

Characteristics and scope of application


High strength, plasticity and wear resistance, but cold deformation plasticity is not high and poor weldability. used as hardened and tempered parts works under heavy load, such as shaft, axle shaft, crankshaft, axle, screw, worm, piston rod, joystick, lever, connecting rod, loads of bolts, screw, the reinforcing ring, spring and so on, when used as diameter of 40mm in the following small section important parts, it's equal to 40Cr steel.


Chemical Composition 


C Si Mn S P Cr Ni Cu Mo
0.38～0.43 0.15～0.35 1.60～1.90 Below 0.040 Below 0.035
 Below 0.30 Below 0.030 Below 0.30 Below 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 
Above 885 Above 735 Above 12 Above 45
 Above 55
 Above 69
   Below 217 25mm

specification of heat treatment and metallurgical structure

 
Specification of heat treatment : normalizing 840℃, water cooling; tempering 540℃, water 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.