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O1 / 1.2510 cold work tool steel plates / bars / sheet / forgings

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Used for manufacturing cold punching molds with no big cross section and complicated shape as well as different measuring gauges and tools, etc.

Detalhes do produto

StandardGB/T 1299-2000
Chemical Composition%

Standard

Steel Grade

C

Si

Mn

P≤

S≤

Cr

Mo

V

W

DIN

1.2510

0.90-1.05

0.15-0.35

1.00-1.20

0.035

0.035

0.50-0.70

-

0.05-0.15

0.50-0.70

ASTM

O1

0.85-1.00

0.10-0.50

1.00-1.40

0.030

0.030

0.40-0.60

-

0.30

0.40-0.60

GB

9CrWMn

0.85-0.95

≤0.40

0.90-1.20

0.030

0.030

0.50-0.80

-

-

0.50-0.80

 

Specification

Round bar

Diameter

Length

-

Forged round barφ50~280

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. 9CrWMn is low-alloy cold work tool steel.

2. With certain hardenability and abrasion resistance, homogenous and small-particle carbides.

 

Application

Used for manufacturing cold punching molds with no big cross section and complicated shape as well as different measuring gauges and tools, etc.

 

Delivery condition

Annealed, hardness 235HB

 

Heat treatment:

Annealing after forging

 

Forging Technique

Item

Heat temperature

Start forging temperature

Finish forging temperature

Cooling

steel ingot

1150-1200

1100-1150

≥850

Retarded cooling

steel billet

1100-1150

1050-1100

≥850

Retarded cooling

 

Quenching Technique

Preheat temperature

Heat temperature

Cooling

Hardness HRC

medium

medium temperature

cooled down to oil temperature

650

820-840

Oil

20-60

64-66

 

Tempering Technique

Tempering temperature:

Heating medium

Cooling medium

Hardness HRC

160-180

oil

air

≥61

170-230

oil

air

60-62

230-275

oil or alkaline water

air

56-60


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