Shanghai Jieteng Precision Mold Factory

Shanghai Jingteng Metal Group Co., Ltd.

   
Product
Article
Search
NameDescriptionContent
Product center
  
  
  
location：
HOME ≡ Special Steel ≡ Alloy Steel ≡ ​ Germany Standard Alloy Steel ≡ 34CrMo4
PRODUCT CENTER
Contact us
34CrMo4

34CrMo4

34CrMo4 Alloy Steel
￥ 0.00
0.00
Thickness：
Diameter：
  
34CrMo4 Alloy Steel




Material Name


Material Name: 34CrMo4

Characteristics and scope of application


High temperature with high creep strength and creep strength, low temperature impact toughness good hardenability of good, no tendency to overheat, quenching deformation small, cold side of the shaped plastic fair, processing medium. The poor welding, preheating before welding, after welding heat treatment and stress relief, after quenching and tempering treatment in general use, in high frequency surface quenching or quenching and low, medium temperature tempering after use. used as an important structure of the work pieces under high load, such as the transmission of a vehicle and engine parts; turbo generator rotor, spindle, heavy load transmission shaft, large section parts 34CrMo4 for manufacturing requirements was higher than that of 35CrMo steel strength and conditioning section greater forgings, such as locomotive traction gear, supercharger drive gear rear axle by load greatly and the connecting rod and the spring clip, 34CrMo4 can also be for less than 2000m deep oil drill pipe joint and the fishing tools.

Chemical Composition


C
 Si Mn S P
 		Cr Ni Cu
 Mo
0.30～0.37
 0.10～0.40 0.60~0.90
 Max 0.035 Max 0.035
 0.90~1.20 Max 0.030 Max 0.030 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 985 Min 835 Min 12 Min 45
 Min 63
 Min 78
   Max 229 25mm

specification of heat treatment and metallurgical structure


Specification of heat treatment : hardening 850℃ oil cooling; tempering 550℃, water cooling, oil cooling.

Delivery State


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