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55CrSiA

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China GB 55CrSiA 铬硅弹簧钢丝 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 55CrSiA / 55CrSiA
Category Grade Standard Region/Area Standard Content
Metals 55CrSiA GB 5221 China 铬硅弹簧钢丝

Chemical composition(mass fraction)(wt.%) of the 55CrSiA

Element Min Max Similar
Si 1.2000 1.6000 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.2500 -
Mn 0.5000 0.8000 -
Cu - 0.2000 -
Cr 0.5000 0.8000 -
C 0.5000 0.6000 -
Si 1.2000 1.6000 -
S - 0.0300 -
P - 0.0300 -
Mn 0.5000 0.8000 -
Cu - 0.2000 -
Cr 0.5000 0.8000 -
C 0.5000 0.6000 -

Mechanical Properties of steel grade 55CrSiA

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)
476 (≥) 363 (≥) 21 14 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade 55CrSiA

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
22 - -     0.12 -  
416 982 - 23.3 132   -  
423 - 13 21.2   214 431

Heat Treatment of steel grade 55CrSiA

Heat treated : 1556°C - 1428°C

Technological Curves of steel grade 55CrSiA

Cross Reference Table (Equivalent Grade) of 55CrSiA

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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