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Your present location:Home >> Products >> Cold Work Tool Steel >> 1.2601,SKD11 >> 1.2601/SKD11 Cold Work Tool Steel bar/plate/forgings/sheet for cuttings/molds
  • Product Name: 1.2601/SKD11 Cold Work Tool St...
  • Product ID: 2302
  • Views : 1471

Chemical Composition(%)

Standard

Steel  Grade

C

Si

Mn

P

S

Cr

Mo

V

W

DIN

1.2601

1.55-1.75

0.25-0.40

0.20-0.40

0.030

0.030

11.0-12.0

0.50-0.70

0.10-0.50

0.40-0.60

ASTM

-

-

-

-

-

-

-

-

-

-

GB

Cr12MoV

1.45-1.70

≤0.40

≤0.40

0.030

0.030

11.00-12.50

0.40-0.60

0.15-0.30

-

Specification

Round bar

Diameter

Length

-

Forged round bar:φ50~280

2000~6000

-

 Rolled round barφ10~80

 2000~6000

-

Flat bar

Thickness(mm)

Width(mm)

Length(mm)

Forged plate20~300

50~710

2000~6000

Rolled plate10~65

155~610

2000~6000

 

Characteristics

1.With good hardenability, is able to be full hardened when the diameter of cross section is under 300-400mm.

2.It can still maintain good hardness and abrasion resistance at the temperature ranging from 300 to 400℃.

3.Its toughness is better than that of Cr12.

4.Its volume changes the least in the course of quenching.

 

Application

Used to manufacturing all kinds of moulds and tools with comparatively larger cross sections and complex shapes, which can bear heavy shock loads. Complex-shaped piercing dies, panel boards in the complex die mould, deep-drawing dies for steel plates, wire-drawing dies, threading screw plates, cold-extruding dies, cold-cutting scissors, circular saws, standard tools, measuring tools, etc.

 

Delivery Condition

Annealed, hardness≤255HB

 

Heat treatment

Isothermal annealing after forging:(850~870)℃×(3~4)h,furnace cooling≤30℃/h; (740~760)℃×(4~5)h, furnace cooling≤30℃/h;500~600℃,Air cooling.hardness≤255HB.

 

Quenching Process

First-time preheat

  Second-time preheat

Quenching temperature

Cooling

Hardness HRC

Medium

Medium temperature

Cooling through medium

Afterwards

550-600

840-860℃

950-1000

Oil

20-60

up to oil temperature

Air cooling

58-62

1020-1040

油Oil

20-60

up to oil temperature

62-63

1020-1040

melting nitrate

400-550

5-10min

62-63

1115-1130

Oil

20-60

up to oil temperature

42-50

1115-1130

melting nitrate

400-450

5-10min

42-50

 

Tempering Process

Purpose

Heating temperature

Medium

Hardness HRC

Elimination of stress

150-170

Oil or nitrate

61-63

Elimination of stress and decrease of hardness

200-275

--

57-59

Elimination of stress and decrease of hardness

400-425

--

55-57