FStE 420 OS 1

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Germany SEW FStE420OS1 Weldable fine grain structural steel for highly stress steel construction. Technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: FStE420OS1 / FStE 420 OS 1

Category	Grade	Standard	Region/Area	Standard Content
Metals	FStE 420 OS 1	SEW 085	Germany	Weldable fine grain structural steel for highly stress steel construction. Technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the FStE 420 OS 1

Element	Min	Max	Similar
V	-	0.1000	-
Ti	-	0.0500	-
Si	-	0.5000	-
S	-	0.0250	-
P	-	0.0250	-
Ni	-	0.6000	-
Nb	-	0.0400	-
N	-	0.0150	-
Mo	-	0.0800	-
Mn	-	1.6000	-
Cu	-	0.4000	-
Cr	-	0.2000	-
CEV	-	0.4500	-
C	-	0.1600	-
Al	0.0200	-	-

Mechanical Properties of steel grade FStE 420 OS 1

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)
295 (≥)	215 (≥)	44	34	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	243

Physical Properties of steel grade FStE 420 OS 1

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
12	-	-			0.42	-
792	641	-	24.3	424		-
857	-	41	44.2			142	414

Heat Treatment of steel grade FStE 420 OS 1

Heat treated : 1477°C - 1847°C

Technological Curves of steel grade FStE 420 OS 1

No Curve

Cross Reference Table (Equivalent Grade) of FStE 420 OS 1

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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