الحديد الزهر سبيكة الكروم العالية

Grade

C (%)

Cr (%)

Si (%)

Mn (%)

Ni (%)

Other Elements (%)

Applications

ASTM A532 Class II A

2.0-3.3

11-13

1.0-2.2

0.5-2.5

–

Mo: 0.5 max

Abrasion-resistant liners, pumps

ASTM A532 Class II B

2.5-3.6

23-30

0.5-1.5

0.5-2.0

–

Mo: 0.5-1.5

High-wear conditions, slurry pumps

ASTM A532 Class II C

2.5-3.6

16-23

0.5-1.5

0.5-2.0

–

Mo: 1.0-1.5

Medium corrosion and abrasion resistance

ASTM A532 Class III A

2.3-3.6

25-30

0.6-1.2

0.5-2.0

–

Mo: 0.5-1.5

Cement mill liners, crushers

ASTM A532 Class III B

2.0-3.5

28-32

0.8-1.5

0.5-2.0

–

Mo: 1.0-2.0, Cu: 0.5 max

Severe abrasive environments

ASTM A532 Class III C

2.5-3.5

30-35

0.5-1.5

0.5-1.5

–

Mo: 1.0-2.0

Severe high-wear industrial applications

Nihard 1

3.0-3.6

1.8-3.2

0.3-1.0

0.5-1.0

–

Mo: 0.2-0.6

Mills, crushers, and industrial grinders

Nihard 4

2.8-3.6

7.0-11.0

0.5-1.0

0.8-1.2

–

Mo: 0.2-0.6

Slurry pumps, coal mill parts

High-Chromium 15% Cr

2.2-3.5

14-18

0.5-1.5

0.5-2.0

–

Mo: 0.5-1.5, V: 0.5 max

Wear plates, grinding media

High-Chromium 20% Cr

2.5-3.5

19-22

0.5-1.5

0.5-1.5

–

Mo: 0.5-2.0

High-abrasion and mild corrosion environments

High-Chromium 25% Cr

2.5-3.5

24-28

0.8-1.5

0.5-1.5

–

Mo: 0.5-1.5, Cu: 0.5 max

Slurry pump impellers

Cr35

2.5-3.6

28-35

0.8-1.5

0.5-1.2

–

Mo: 0.8-2.0, Cu: 0.5 max

High-impact and corrosion environments

Cr26

2.8-3.6

24-28

0.5-1.5

0.5-1.0

–

Mo: 0.8-1.5, V: 0.5-1.0

Abrasion-resistant pump liners

Cr20

2.3-3.5

18-20

0.5-1.0

0.5-1.0

–

Mo: 0.5-1.0

Mining applications, cyclones

HC250

2.5-3.5

23-25

1.0 max

0.8 max

–

Mo: 1.0-2.0, Cu: 0.5 max

Cement plants, wear liners

HC300

2.8-3.8

27-30

1.0 max

0.8 max

–

Mo: 1.0-2.0, Cu: 0.5 max

Extreme wear-resistance applications

HC350

2.5-3.6

32-35

0.8-1.5

0.5-1.0

–

Mo: 1.5-2.5, Nb: 0.5 max

Heavy-duty slurry pumps

Abrasion-Resistant 1

2.8-3.6

15-17

0.8-1.2

1.0 max

–

Mo: 0.5 max

Cement and mining applications

Abrasion-Resistant 2

2.8-3.8

19-22

1.0-1.5

1.0 max

–

Mo: 0.5-1.5, Cu: 0.5 max

Crushers, mill liners

Abrasion-Resistant 3

2.8-3.8

25-30

0.5-1.5

0.8-1.5

–

Mo: 1.0-2.0, Nb: 0.5-1.0

Severe wear and corrosion applications