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SWRCHB 620

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Japan JIS SWRCHB620 硼钢线材，冷镦和冷锻 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SWRCHB620 / SWRCHB 620
Category Grade Standard Region/Area Standard Content
Metals SWRCHB 620 JIS G3508 Japan 硼钢线材，冷镦和冷锻

Chemical composition(mass fraction)(wt.%) of the SWRCHB 620

Element Min Max Similar
Si 0.1000 0.3500 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.2000 -
Mn 1.1000 1.4000 -
Cu - 0.3000 -
Cr - 0.2000 -
C 0.1700 0.2300 -
B 0.0008 - -
Si 0.1000 0.3500 -
S - 0.0300 -
P - 0.0300 -
Mn 1.1000 1.4000 -
C 0.1700 0.2300 -
B 0.0008 - -

Mechanical Properties of steel grade SWRCHB 620

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)
942 (≥) 824 (≥) 12 32 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade SWRCHB 620

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
34 - -     0.43 -  
973 736 - 31.3 232   -  
993 - 14 23.2   411 413

Heat Treatment of steel grade SWRCHB 620

Heat treated : 1988°C - 1382°C

Technological Curves of steel grade SWRCHB 620

Cross Reference Table (Equivalent Grade) of SWRCHB 620

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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