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CPR Tool Steel Material

Ledeburitic 12% chrome steel with increased additions of W, Mo, and V, high wear resistance, good toughness, high-pressure resistance, minimal change in dimension, and secondary hardening.

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What is CPR Steel?

CPR material is a special cold work tool steel that contains a high amount of chromium, molybdenum, and vanadium in a ledeburitic structure. CPR steel exhibits high wear resistance. Thanks to its secondary hardenability, CPR cold work tool steel allows for CVD/PVD coating, and it also has excellent dimensional stability.

What is the Hardness Value of CPR Material?

The surface hardness of CPR cold work tool steel can be increased up to 64-65 HRC through nitriding and oxidation processes.

What are the Mechanical Properties of CPR Material?

You can find the material properties of CPR in the "Technical Details" tab. All mechanical and material properties of CPR steel are specified within this tab.

Where is CPR Material Used?

CPR material is preferred for use in molds cutting sheets with thicknesses of 10 mm and below, in the upper and lower parts of cold sheet cutting molds, in punches, calibration rollers, ejectors, drawing cylinders, profile rollers, mold rings, railway ballast, tapered railway ballast, abrasive powders, and pressing tools.

What is the Price of CPR Material?

The price of CPR material varies depending on the product section, dimensions, and surface quality. You can access CPR steel prices through the "Proceed to Online Sales" button on the www.saglammetal.com homepage.

Chemical Composition

Carbon	Chromium	Molybdenum	Vanadium	Wolfram
C	Cr	Mo	V	W
1,20	12,00	1,40	1,70	2,50

Heat Treatment

	Temperature	Cooling	Hardness
Soft annealing	820 - 850°C	Furnace	250 HB
Stress relief annealing	600 - 650°C	Furnace
Hardening	1130 - 1150°C	oil, pressure gas (N2), air or hot bath 500 - 550°C	See Tempering Diagram

Mechanical Properties

Hardness

58 - 64

HRC

Physical Properties

Coefficient of thermal expansion	10,6 - 12,0	1/K * 10^-6
Thermal conductivity (20°C)	22,8	W/mK
Density	7,85	g/cm³

CPR Tool Steel Material

CPR Material

Ledeburitic 12% chrome steel with increased additions of W, Mo, and V, high wear resistance, good toughness, high-pressure resistance, minimal change in dimension, and secondary hardening.

What is CPR Steel?

What is the Hardness Value of CPR Material?

What are the Mechanical Properties of CPR Material?

Where is CPR Material Used?

What is the Price of CPR Material?

Chemical Composition

Carbon

Chromium

Molybdenum

Vanadium

Wolfram

C

Cr

Mo

V

W

1,20

12,00

1,40

1,70

2,50

Heat Treatment

Temperature

Cooling

Hardness

Soft annealing

820 - 850°C

Furnace

250 HB

Stress relief annealing

600 - 650°C

Furnace

Hardening

1130 - 1150°C

oil, pressure gas (N2), air or hot bath 500 - 550°C

See Tempering Diagram

Mechanical Properties

Hardness

58 - 64

HRC

Physical Properties

Coefficient of thermal expansion

10,6 - 12,0

1/K * 10-6

Thermal conductivity (20°C)

22,8

W/mK

Density

7,85

g/cm3

Industries

Automotive

White Goods - Electronics

Iron and Steel

Tools

Application

Powder Pressing

Feed and Food Production

Pipe Profile Manufacturing

Stainless Sheet Metal Processing

CRC Sheet Processing

Deep Drawing Moulds

Precision Cutting

Cold Forging

Cutting Tools

Broaches - Reamers

Rolling and Hobbing Tools

1/K * 10^-6

g/cm³