Round bar:Dia.60-600mm

Flat: thickness 16-600mm,width 60-800mm

Plate: thickness 20-300mm,width 1600-2300mm

Delivery condition: hot rolled, black surface, hardened and Tempered 28-34HRC

Characteristics:

1.A kind of widely used cold work tool steel, belong to carbon chromium ledeburitic steel..

2.With good quench-hardening ability, good abrasive resistance ability ,as well hot workability.

3. Carbide is well widely distributed inside, use in making all kinds of complex shape hot work tool steel in heavy running condition.

4.After repeated explorations and testing, we create reasonable smelt technique and special ingot mould & forging technique, lead the material organization to well-distributed and accordance.

Besides, we innovate boldly in processing standard material and using new technique of double blade to   upgrade its efficacy, shorten the time period and cut down the cost.

Application:

Due to its good abrasion resistance, it is widely used in making cold die and punch, cold shearing(shear hard and thin metal, such us silicone sheet),drilling bushing ,gauge, wortle, coining die,

thread rolling die, screw thread rolling die and so on, which are small impact load but need high wearable ability.

Heat treatment:

Annealing temperature: 800-850 ° C

Annealing hardness: 248 HB Max.

Destressing temperature: 650 ° C Approx.

Hot forming temperature: 1050-850 ° C

Quenching temperature: 940-970 ° C

Hardening media: oil quenching, Salt bath (220-250 ° C or 500-550 ° C), air or compressed air

Quenching hardness: 63-65 HRC