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SAE 4027H

Description

SAE 4027H Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SAE 4027H

Chemical composition(mass fraction)(wt.%) of the SAE 4027H

C
Si
Mn
P
S
Cr Ni
0.24-0.3   0.15-0.35 0.6-1.0 0.04  0.03  ≤0.2  ≤0.25 
Mo Al Cu Nb Ti V Ce
0.2-0.3    ≤0.35        
N Co Pb B Other    
             
             

Mechanical Properties of steel grade SAE 4027H

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)
725 (≥) 189 (≥) 11 12 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical Properties of steel grade SAE 4027H

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
21 - -     0.12 -  
148 494 - 23.3 221   -  
312 - 31 32.2   233 112

Heat Treatment of steel grade SAE 4027H

Heat treated : 1778°C - 1457°C

Technological Curves of steel grade SAE 4027H

Cross Reference Table (Equivalent Grade) of SAE 4027H

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

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