RM40

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America ASME RM40 氧燃气焊接用碳钢和低合金钢填充丝标准 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: RM40 / RM40

Category	Grade	Standard	Region/Area	Standard Content
Metals	RM40	ASME SFA-5.2/SFA-5.2M	America	氧燃气焊接用碳钢和低合金钢填充丝标准

Chemical composition(mass fraction)(wt.%) of the RM40

Element	Min	Max	Similar
C	-	0.1500	-
Mn	0.9000	1.4000	-
P	-	0.0350	-
S	-	0.0350	-
Si	0.1000	0.3500	-
Ni	-	0.3000	-
Cr	-	0.2000	-
Mo	-	0.2000	-
Cu	-	0.3000	-
Al	-	0.0200	-

Mechanical Properties of steel grade RM40

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)
257 (≥)	949 (≥)	12	21	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	124

Physical Properties of steel grade RM40

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	-	-			0.23	-
726	573	-	32.3	144		-
232	-	12	32.2			114	114

Heat Treatment of steel grade RM40

Heat treated : 1286°C - 1239°C

Technological Curves of steel grade RM40

No Curve

Cross Reference Table (Equivalent Grade) of RM40

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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Rfq.: sales@longhaisteel.com

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