4140 Alloy Steel Bar

NAME: 4140 ALLOY STEEL BAR

STANDARDS: ASME, ASME, JIS, EN, AISI, GB, etc

DIAMETE: 5 mm To 500 mm

GRADE : EN8, EN19, EN24, EN31, SAE1140, SAE4140, SAE8620, 16MNCR5, 20MNCR5 etc.

FINISH: Bright Polished, Black, BA Finish, Rough Turned and Matt Finish

LENGTH: 1000 mm To 6000 mm Long or according to customer’s needs

FORM: Round, Flat, Hex, Square, Forging, Ingot, etc.

Product Detail

l Supply Range for AISI alloy 4140 steel

l 4140 Steel Round Bar: diameter 8mm – 3000mm

l 4140 Steel Plate: thickness 10mm – 1500mm x width 200mm – 3000mm

l 4140 Steel Grade Square: 20mm – 500mm

l Surface Finish: Black, Rough Machined, Turned or as per given requirements.

l Width: 10mm to 2500mm

l Length: We can supply any length based on the customer's requirement.

C	Si	Mn	Cr	Mo	Ni	V	W	Others
0.41	max. 0.40	0.75	1.05	0.28	-	-	-	-

High and moderately stressed components for automobile industry and mechanical engineering – shafts, connecting rods, crankshafts, screws, etc.

Physical properties (average values) at ambient temperature

Modulus of elasticity [103 x N/mm2]: 210

Density [g/cm3]: 7.80

Soft Annealing

Heat to 680-720oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 241.

Normalizing

Temperature: 840-880oC.

Hardening

Harden from a temperature of 820-860oC followed by oil or water quenching.

Tempering

Tempering temperature: 540-680oC.

Alloy Steel Round Bar	4 - 500mm OD
42CrMo4 Steel Bright Bar	4 - 100mm OD
SAE 4140 Hex Bar	18 - 57mm (11/16" to 2-3/4")
AISI 4130 Square Bar	18 - 47mm (11/16" to 1-3/4")
ASTM A182 Alloy Steel Flat Bar	1/2 - 10 inches
EN 19 Steel Billet	1/2 - 495mm
Alloy Steel Rectangular Bar	33 x 30mm to 295 x 1066mm
42CrMo4 Steel Angle bar size range in mm	3x 20x 20 - 12x 100x 100