A194 Grade 8RA

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America ASTM A194Grade8RA 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: A194Grade8RA / A194 Grade 8RA

Category	Grade	Standard	Region/Area	Standard Content
Metals	A194 Grade 8RA	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 8RA

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

Mechanical Properties of steel grade A194 Grade 8RA

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
825 (≥)	579 (≥)	22	21	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	131

Physical Properties of steel grade A194 Grade 8RA

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	-	-			0.13	-
157	481	-	23.3	421		-
241	-	23	12.2			332	332

Heat Treatment of steel grade A194 Grade 8RA

Heat treated : 1663°C - 1585°C

Technological Curves of steel grade A194 Grade 8RA

No Curve

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

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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