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A194 Grade 8R

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America ASTM A194Grade8R 高温和高压设备用碳素钢与合金钢螺栓和螺母的规格 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A194Grade8R / A194 Grade 8R
Category Grade Standard Region/Area Standard Content
Metals A194 Grade 8R ASTM A194/A194M America 高温和高压设备用碳素钢与合金钢螺栓和螺母的规格

Chemical composition(mass fraction)(wt.%) of the A194 Grade 8R

Element Min Max Similar
C - 0.0600 -
Mn 4.0000 6.0000 -
P - 0.0450 -
S - 0.0300 -
Si - 1.0000 -
Ni 11.5000 13.5000 -
Cr 20.5000 23.5000 -
Mo 1.5000 3.0000 -
V 0.1000 0.3000 -
N 0.2000 0.4000 -
Nb+Ta 0.1000 0.3000 -

Mechanical Properties of steel grade A194 Grade 8R

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)
131 (≥) 146 (≥) 21 14 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade A194 Grade 8R

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 - -     0.32 -  
966 779 - 14.3 443   -  
655 - 13 33.2   241 334

Heat Treatment of steel grade A194 Grade 8R

Heat treated : 1633°C - 1659°C

Technological Curves of steel grade A194 Grade 8R

Cross Reference Table (Equivalent Grade) of A194 Grade 8R

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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