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SA-691 3CR

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America ASME SA-6913CR 高温高压用碳素钢和合金钢电熔化焊钢公称管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-6913CR / SA-691 3CR
Category Grade Standard Region/Area Standard Content
Metals SA-691 3CR ASME SA-691 America 高温高压用碳素钢和合金钢电熔化焊钢公称管

Chemical composition(mass fraction)(wt.%) of the SA-691 3CR

Element Min Max Similar
Si - 0.5000 -
S - 0.0350 -
P - 0.0350 -
Mo 0.8500 1.1500 -
Mn 0.2500 0.6600 -
Cr 2.6300 3.3700 -
C 0.0400 0.1500 -

Mechanical Properties of steel grade SA-691 3CR

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)
121 (≥) 885 (≥) 23 11 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade SA-691 3CR

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
14 - -     0.12 -  
886 618 - 22.3 241   -  
829 - 43 23.2   224 343

Heat Treatment of steel grade SA-691 3CR

Heat treated : 1737°C - 1821°C

Technological Curves of steel grade SA-691 3CR

Cross Reference Table (Equivalent Grade) of SA-691 3CR

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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