steel pipe

HBS<=235

The state of leaving factory

Round: ?0-?00 Flat :20-80*40-800 80-300*500-800

Dimension(mm)

Tempering, 800-850`C,slow cooling after diathermia

Heat up to 650`C of average temperature in order to eliminate the machined stress, 500`C air cooling after electric cooker cooling

Temper temperature should be higher than working temperature in order to stabilize the working size of mold

50-52

53-54

51-52

53-55

550-5700`C

450-500`C

108-300`C

quench hardening

Temper temperature and rigidity HBC(reference)

Quench:1000-1040`C via 600`C and 850`C, preheating oil or wind cooling

Heat treatment

Hot pressing machine mold

Extrusion mold of copper alloy, die-casting mold

Extrusion mold of aluminum and magnesium, die-casting mold, especially adapt to the mold in large and complicated form.

Use

Harden and air cooling steel, 600`C work, high rigidity, high endurance, anti-heating, anti-cracking, electric sediment and middle-melting steel, compact structure, refined in electric cooker, quality of steel is pure, owned good character of equal direction

Specialty

0.80
/1.20

1.30
/1.75

<=0.030

<=0.030

4.75
/5.50

0.80
/1.20

0.20
/0.50

0.32-0.45

GB/T1299-2000

V

Mo

S

P

Cr

Si

Mn

C

Standard

Chemical component (%)

Bohler
W302

German
X40CrMoV51
(1.2344)

Japan
SKD61

America
H13

China
4Cr5MoSiV1

extrusion die steel

extrusion die steel :High strength at elevated temperatures, high hot wear resistance, good toughness