AISI 81B45

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America AISI AISI81B45 Former SAE Standard and Former SAE Ex-Steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: AISI81B45 / AISI 81B45

Category	Grade	Standard	Region/Area	Standard Content
Metals	AISI 81B45	SAE J 1249	America	Former SAE Standard and Former SAE Ex-Steels

Chemical composition(mass fraction)(wt.%) of the AISI 81B45

Element	Min	Max	Similar
C	0.4300	0.4800	-
Mn	0.7500	1.0000	-
P	-	0.0350	-
S	-	0.0400	-
Si	0.1500	0.3500	-
Ni	0.2000	0.4000	-
Cr	0.3500	0.5500	-
Mo	0.0800	0.1500	-
Cu	-	0.3500	-
B	0.0005	0.0030	-
Si	0.1500	0.3500	-
S	-	0.0400	-
P	-	0.0350	-
Ni	0.2000	0.4000	-
Mo	0.0800	0.1500	-
Mn	0.7500	1.0000	-
Cu	-	0.3500	-
Cr	0.3500	0.5500	-
C	0.4300	0.4800	-
B	0.0005	-	-
Si	0.1500	0.3500	-
S	-	0.0400	-
P	-	0.0350	-
Ni	0.2000	0.4000	-
Mo	0.0800	0.1500	-
Mn	0.7500	1.0000	-
Cr	0.3500	0.5500	-
C	0.4300	0.4800	-
B	0.0005	0.0030	-

Mechanical Properties of steel grade AISI 81B45

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)
835 (≥)	152 (≥)	12	44	34	Solution and Aging, Annealing, Ausaging, Q+T,etc	411

Physical Properties of steel grade AISI 81B45

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
14	-	-			0.21	-
569	583	-	22.3	431		-
249	-	11	31.2			414	423

Heat Treatment of steel grade AISI 81B45

Heat treated : 1922°C - 1242°C

Technological Curves of steel grade AISI 81B45

No Curve

Cross Reference Table (Equivalent Grade) of AISI 81B45

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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