1.2714 Die steel is a type of steel used in die manufacturing.

characteristic

1. Oil quenched and gas quenched plastic die steel has good hardenability.

2. Good toughness.

3. Good thermal resistance, also suitable for cold working tool steel.

4. Suitable for surface treatment.

5. Good polishing performance.

Hot spot

Forging softening annealing hardening tempering

1100-850 ° C 650-700 ° C 830-870 ° C 300-600 ° C

Purity: According to ASTM E45 method A, A sulfide ≤0.5, B oxide, C silicate and D spherical oxide ≤1 or DIN 50602-K1≤10 or according to customer requirements.

Steel factory status: soft annealing, maximum hardness to 248HB.

Operation status: 36-52HRC.

Product Description

Equivalent

Steel Grade

AISI

DIN

JIS

1.2714

SKT4

5CrNiMoV

Chemical Composition
Steel Grade	C	Si	Mn	Cr	Mo	V	Ni	P&S
L6	0.65-0.75	0.10-0.50	0.25-0.80	0.60-1.20	≤0.50		1.25-2.00	≤0.03
1.2714	0.50-0.60	0.10-0.40	0.60-0.90	0.80-1.20	0.35-0.55	0..05-0.15	1.50-1.80	≤0.03
SKT4	0.50-0.60	0.10-0.40	0.60-0.90	0.80-1.20	0.35-0.55	0.05-0.15	1.50-1.80	≤0.03

Available Size	Round Bar: Hot Rolled: diameter 10-60mm, Hot Forged :diameter60-550mm Flat Bar: Hot Rolled: 12-60X100-610mm, Hot Forged : 30-350X200-810mm
Surface condition	Black surface/Sand blasting/ Grinded/ Machined
Annealed hardness	HB240 MAX
Characteristics	high plasticity, good hardenability , .good tenacity and strength, with great wear resistance
Applications	Forging dies,hot shear knives,punches,backing plate,die holders,hot punching tools
Heat Treatment	Isothermal annealing Heat to 800°Cand hold at temperature for 1/2 h to 1 h; Furnace cooling to 670°Cand hold at temperature for at least 10 hours; Cool by 10°C/h to 630°C; Cooling in air. Maximum hardness:≤240 HB
	Stress relieving To be carried out after maching before the final heat treatment. Heat to 600-650°C, hold for 4-6 hours; Cooling in furnace to 300-350°C; Cooling in air
	Hardening Initial preheating to 350-450°C; Second preheating to 650-750°C; Heat to hardening temperature 860-890°Cand hold at temperature; Cooling in hot oil (40-60°C); oil quenched hardness: 54-59HRC;
	Tempering Tempering must be carried out within one hour from hardening(warm part) in the range 550-630°Cfor 4-6 hours according to hardness required, the dimensions of the parts and operating conditions