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Guides and specifications for tool steels

BRM MATERIAL DATA SHEET – MIM TOOL STEELS

BRM is specialized in metallic materials and serves for emerging industries of strategic importance. it provides its high-end global customers with the advanced metallic materials, products and solutions to their materials technology problems in businesses covering Metallurgy, Magnetic Materials, Amorphous, Nanocrystalline products, Refractory materials & products, filtration materials & environment protection engineering, high speed and diamond tools. Group company was established in the Zhongguancun Science Park in December 1998, and underwent a successful IPO issuing 60 million of a share on Shenzhen Stock Exchange, the registered capital has been CNY 863 million by December 2015. Group has already established four production bases in the Yongfeng, Konggang and Changpin, and owns 18 holding companies, we have set up comprehensive market channel and technology cooperation by many well known enterprises in the worldwide and exported to more than 50 countries and regions.

 

FEATURES   AND APPLICATIONS

Grade

Hardness

Alloy Features

Applications

S7

55-60   HRC

High   Impact Resistance, High Toughness

Firearms,   Consumer Goods, General Industrial,

Cutting   Tools

A2

60-65   HRC

Good   Toughness, Moderate Wear Resistance

M2/M4

60-65   HRC V

Very   Good Wear Resistance, Good Toughness

T15

60-65   HRC

Extremely   Good Wear Resistance

 

ALLOY   COMPOSITION

Alloy

C

Mn

Si

Cr

W

V

Ni

Mo

Co

Cu

Fe

MIM   S7

.45-.65

.9 max

.2-1.0

3.0-3.5

-

-

-

1.3-1. 8

-

-

Bal

MIM   A2

.95-1.05

1.00 Max

.5 Max

4.75-5.5

-

.15-.5

-

.9-1.4

-

-

Bal

MIM   M2

.8-0.9

-

-

3.5-4.5

5.5-6.5

1.5-2.2

-

4.5-5.5

-

-

Bal

MIM   M4

1.25-1.4

.15-.4

.2-.45

3.75-4.75

5.25-6.65-

3.75-4.5

-

4.25-5.5

-

-

Bal

 

TYPICAL   MATERIAL PROPERTIES

Material

Density   (g/cm3)

YS   (MPa)

UTS   (MPa)

Elongation   (%)

Unnotched   Charpy  impact energy (J)

Macro   Hardness

Case   Hardened

Young’s   modulus (GPa)

MIM   S7 HT

7.4

1550

1750

2

-

45-53 HRC

-

-

MIM   A2 HT

7.5

-

-

-

-

55-63 HRC

-

-

MIM   M2 HT

7.9

-

-

-

-

55-65 HRC

-

-

MIM   M4 HT

7.9

-

-

-

-

60-65 HRC

-

-

MIM   T15 HT

8.2

-

-

-

-

60-65 HRC

-

-

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Contact: Alexander Sun

Phone: +86 19916725893

Tel: 0512-55128901

Email: [email protected]

Add: No.6 Huxiang Road, Kunshan development Zone, Jiangsu
Shanghai Branch: No. 398 Guiyang Rd, Yangpu District, Shanghai, China