Hot Rolled 34CrNiMo6 1.6582 Special Tool Steel Alloy Steel Round Bar

• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Stainless Steel Scrap
• Technique: Forged
• Shape: Plate
• Surface Treatment: Black or as Required
• Model NO.: Round bar
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Tool Steel Bar
• Transport Package: Wooden
• Specification: 6-400mm
• Trademark: Smooth
• Origin: China
• HS Code: 7214100000
• Production Capacity: 5000 Ton/Year

Product Description

About Product

EN 34CrNiMo6 Steel is an important alloy engineering steel grade as per BS EN 10083-3:2006.
34CrNim06 steel has high strength, high toughness and good hardenability. EN / DIN 34CrNiMo6
alloy steel has the stability of resistance to overheating, but the white sensitivity of 34CrNiM06
is high. It also has the temper brittleness, so the weldability of 34CrNiMo6 material is poor. The
steel 34CrNiMo6 needs the high temperature preheating before welding in order to eliminate
the stress after welding processing.

Chemical Composition(%)

C	Si	Mn	Ni	P	S	Cr	Mo
0.3 - 0.38	max   0.4	0.5 - 0.8	1.3 - 1.7	max   0.025	max   0.035	1.3 - 1.7	0.15 - 0.3

Physical Property

Density, g/cm3	7.85
Specific heat capacity J/(kg.K)	460
Electric resistivity Ohm.mm2 /m	0.19
Electric conductivity Siemens.m/mm2	5.26
Modulus of elasticity Gpa	100 ºC	200 ºC	300 ºC	400 ºC	500 ºC
	205	195	185	175
Thermal expansion 10^6 m/(m.K)	100 ºC	200 ºC	300 ºC	400 ºC	500 ºC
	11.1	12.1	12.9	13.5	13.9

Mechanical Property

Depth mm	25	1/3 radius	1/2 Diameter
R Mpa	930	900	860
Rp 0.2 Mpa	828	750	730
A %	18.6	15.4	12.6
C %	64	60	46
Kv +20 ºC J	/	/	70/74/70
Kv -40 ºC J	110/110/118	48/44/45	25/28/25
Hardness HB	279	271	264

Longitudinal Tesing

Forged round bar Dia 520mm,Quenched at 870 ºC in water,tempered at 630 ºC in air.

Forging

DIN 1.6582/34CrNiMo6  forging temperature:850 - 1100°C

Heat Treatment

• Normalizing:  850 - 880°C,Cooling in air
• Soft Annealing:650 - 680°C,Cooling in furnace,Max Hardness:248HB
• Full Annealing:830-900°C,Cooling in furnace to 300°C
• Stress relieve:450-650°C ,appr. 50 °C under tempering temperature
• Hardening:830 - 860°C,Quenching in oil
• Tempering:540 - 660°C,Cooling in air

Application

DIN 1.6582/34CrNiMo6 steel is used to make tools which requires good plasticity and high strength. It is usually selected to make the big size and important parts, such as heavy machinery axle,turbine shaft blade, high load of transmission parts, fasteners, crank shafts, gears, as well as heavily loaded parts for motor construction etc.