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  • Product Name: 420/1.2083/SUS420J2 Plastic Mold Steel
  • Product ID: 3204
  • 上架时间: 2017-08-29
  • Views : 1823

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StandardGB/T 1220-1992
DIN AISI JIS GB

1.2083 420 - 4Cr13

Chemical composition %

 

Standard

Steel Grade

C

Si

Mn

P

S

Cr

Mo

V

W

DIN

1.2083

0.38-0.45

≤1.00

≤1.00

0.030

0.030

12.00-13.50

-

-

-

ASTM

420

-

-

-

-

-

-

-

-

-

GB

4Cr13

-

-

-

-

-

-

-

-

-

Specification

 

Round bar

Diameter

Length

-

Forged round bar:φ50~450

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

Martensite stainless steel with good machinability and excellent corrosion resistance, polishability and high strength and wear resistance after heat treatment.

 

Application

Components as axle, valve, gear, medical applicance, spring etc., which require high hardness and wear resistance. Applied for making plastic moulds and transparent plastic molds which require high load, wear resistance and work under the action of corroding medium.

Forging Technique

 

Heating

Initial forging temperature

Final forging temperature

Cooling

Slowly heat to 800, then quickly heat to the final forging temperature

 

1160-1200

850

Ash cooling or sand cooling with timely annealing

 

 

Heat treatment technique

 

Item

Annealing

Quenching

Tempering

Temperature

750-800

1050-1100

200-300

Cooling

Furnace cooling

Oil cooling

Air cooling

Hardness

229HB

54-58HRC

50HRC

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