RH 388

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France AFNOR NF RH388 Iron and steel. Special structural steels suitable for the manufacture of suspension components and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: RH388 / RH 388

Category	Grade	Standard	Region/Area	Standard Content
Metals	RH 388	NF A35-571	France	Iron and steel. Special structural steels suitable for the manufacture of suspension components

Chemical composition(mass fraction)(wt.%) of the RH 388

Element	Min	Max	Similar
Si	1.5000	2.0000	-
S	-	0.0500	-
P	-	0.0500	-
Mn	0.7000	1.0000	-
C	0.5500	0.6500	-

Mechanical Properties of steel grade RH 388

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)
349 (≥)	322 (≥)	44	11	12	Solution and Aging, Annealing, Ausaging, Q+T,etc	222

Physical Properties of steel grade RH 388

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
23	-	-			0.32	-
245	229	-	32.3	142		-
423	-	44	21.2			134	331

Heat Treatment of steel grade RH 388

Heat treated : 1439°C - 1446°C

Technological Curves of steel grade RH 388

No Curve

Cross Reference Table (Equivalent Grade) of RH 388

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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