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SAE 4120RH

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SAE 4118RH SAE 4130RH
#SAE # # #4120RH

Description

SAE 4120RH Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SAE 4120RH
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel SAE 4120RH
UNS H93106
SAE 94B15H
UNS H94151
SAE 94B17H
UNS H94171
SAE 94B30H
UNS H94301
SAE 3310RH
SAE 4027RH
SAE 4118RH

Chemical composition(mass fraction)(wt.%) of the SAE 4120RH

 

C
≤		 Si
≤		 Mn
≤		 P
≤		 S
≤		 Cr Ni
0.18-0.23   0.15-0.35 0.9-1.2   0.025 0.04  0.4-0.6 ≤0.25 
Mo Al Cu Nb Ti V Ce
0.13-0.2   ≤0.35         
N Co Pb B Other    
             
             

Mechanical Properties of steel grade SAE 4120RH

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
824 (≥) 411 (≥) 13 24 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade SAE 4120RH

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
41 - -     0.43 -  
691 349 - 12.3 111   -  
565 - 32 33.2   342 411

Heat Treatment of steel grade SAE 4120RH

Heat treated : 1224°C - 1913°C

Technological Curves of steel grade SAE 4120RH

Cross Reference Table (Equivalent Grade) of SAE 4120RH

Grade Standard Country Application
SAE NVl(1541) SAE USA precipitation hardening
SAE NV2(1547) SAE USA precipitation hardening
SAE NV3 SAE USA precipitation hardening
SAE NV4(3140) SAE USA precipitation hardening
SAE NV5(8645) SAE USA precipitation hardening
SAE NV6(5150) SAE USA precipitation hardening
SAE NV7(4140) SAE USA precipitation hardening
SAE NV8 USA precipitation hardening
SAE NV9 SAE USA precipitation hardening
SAE HNVl SAE USA precipitation hardening
SAE HNV2 SAE USA precipitation hardening
SAE HNV3 SAE USA precipitation hardening
SAE HNV4 SAE USA precipitation hardening
SAE HNV5 SAE USA precipitation hardening
SAE HNV6 SAE USA precipitation hardening
SAE HNV7(71360) SAE USA precipitation hardening
SAE HNV8 SAE USA precipitation hardening
SAE EVl SAE USA precipitation hardening
SAE EV2 SAE USA precipitation hardening
SAE EV3 SAE USA precipitation hardening
SAE 4118RH SAE 4130RH
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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