40crmov4-6 DIN1.7711 Alloy Carbon Steel

• Customization: Available
• Type: Alloy Steel Bar
• Standard: DIN, BS
• Model NO.: 40CrMoV4-6 DIN1.7711
• Technique: Hot Forged,or Hot Rolled
• Shape: Round,Flat or Square
• Surface Treatment: Black Surface, Grinded,Peeled,Milled,Polished
• Special Use: Alloy Structural Steel
• Application: Structural Steel Bar
• Size Range: Round Bar:Dia12~420mm Flat Bar:2~420 X 30~1500mm
• Smelting Process: Ef, Ef/Eaf+Lf+Vd, Ef/Eaf+ESR
• Delivery Condition: Hot Rolled, Forged, Annealed,Quenched and Tempered
• Surface Condition: Black Surface, Grinded,Peeled,Milled,Polished
• Transport Package: Seaworth Packing
• Specification: Round Bar: Dia12~420mm Flat Bar: 2~420 X 30~1500mm
• Trademark: CHENGQUAN
• Origin: Huangshi, Hubei
• HS Code: 7228100000
• Production Capacity: 5000tons/Year

Product Description

Introduction:
Alloyed carbon steel.

Application:
Staticaly and dymamicaly stressed components for vehicles, engines and machines, for parts of lager cross sections, gears, crankshafts. Hardness as surface hardened is more than 54 HRC.

Quality Standard:
EN10269 Steels and Nickel Alloys for Fasteners with Specified Elevated and or Low Temperature Properties

Similar Grades:

Material No.	EN
1.7711	40CrMoV4-6

Chemical Composition(%):

C	Mn	Si	P	S	Cr	Mo	V
0.36-0.44	0.45-0.85	0.40 max	0.030 max	0.030 max	0.90-1.20	0.50-0.65	0.25-0.35

Typical Mechanical Properties (Quenched and Tempered):

Dia Scope (mm)	Tensile Strength Rm (Mpa)	Yield Strength R2 (Mpa)	Elongation (longitudinal direction) Al (%)	Area Reduction Z (%)	Impact Energy Joules (20°C) (KCV J)
100mm max	850-1000	700 min	14 min	45 min	30 min
100mm-160mm	850-1000	640 min	14 min	45 min	25 min

HEAT TREATMENT:
· Forging:Hot forming temperature: 1100-850°C.
· Soft annealing:Heat to 650-730°C, cool slowly. This will produce a maximum Brinell hardness of 241.
· Hardening:Harden from a temperature of 880-930°C followed by oil or water (conditional) quenching.
· Tempering:empering temperature: 670-730°C.
 

Mill′s test certificate:
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.