Code

Material #

Hardness
HRC

Performance

Application

A01

KmTBCr8

≥55

Abrasion-resistant performance is about 10% less than A05

Mud & slag application

A03

KmTBNi4Cr2

≥56

Abrasion-resistant performance is about 20% less than A05

Neutral water-sand slurry and applications with lower impact load

A05

KmTBCr26

≥56

Ranks second only to A07 in abrasion-resistant performance; fair corrosion-resistant performance.

High impact load abrasion condition; PH rate ranging from 5 to 12

A07

KmTBCr15Mo3

≥59

Best abrasion-resistant performance; corrosion-resistant performance is inferior to A05

High impact load abrasion condition

A11

KmTBCrMnMo3

38-42

Mild corrosion-resistant; lower hardness; drilling and tapping operations are applicable. 

Fine particles with light abrasion.

A33

≥35

Abrasion-resistant performance is close to A03; fair corrosion-resistant performance

Oxide slurry with PH rate no less than 1, like phosphor-gypsum in phosphate fertilizer plant, nitric acid, sulph-oacid and phosphoric acid, etc.

A49

≥43

Fair abrasion-resistant performance, close to A03; fair corrosion-resistant performance in media with lower PH rate.

Corrosion conditions with low PH rate, especially for flue gas and FGD devices for media of PH≥4; general suitable for lower acid condition.

A12

≥62

Higher abrasion-resistant performance than A05; fair corrosion-resistant performance; suitable for media with PH rate is 6-16, where A05 is not suitable.

High abrasive slurry with fine particles.

A61

63-68

Optimized abrasion-resistant performance than A12

High abrasive slurry with fine particles.

Material

Material #

Applications

Natural Rubber

R08

R08 is low to medium hardness rubber used for impellers where slurry contains fine particles and erosive.

Natural Rubber(soft)

R26

R26 is soft natural rubber used for liners where slurry contains fine particle and more erosive.

Natural Rubber(soft)

R33

R33 is widely used for frame plate liners, cover plate liners and impellers. Maximal particle diameter is 10mm; impeller peripheral speed should be less than 25m/s; suitable for temperature not exceeding 75℃.

Natural Rubber

R55

R55 is widely used for impellers, frame plate liners, cover plate liners and throat bushes. Maximal particle diameter can be 20mm, impeller peripheral speed should be less than 27.5m/s; suitable for temperature not exceeding 75℃. 

EPDM Rubber

S01

S01 is widely used for impellers, frame plate liners, cover plate liners and throat bushes. Maximal particle diameter can be 8mm; impeller peripheral speed should be less than 25m/s; suitable for temperature not exceeding 120℃(continuous duty) or 140℃(discontinuous duty).

Nitrile Rubber(NBR)

S12

S12 is widely used for frame plate liners, cover plate liners, throat bushes, lip seals, impellers and expellers. Maximal particle diameter is 7mm; impeller peripheral speed should be less than 27m/s; suitable for temperature not exceeding 95℃.

Butyl Rubber

S21

S21 is widely used for impellers, frame plate liners, cover plate liners, expellers, volute seals and throat bushes,. Maximal particle diameter can be 7mm; impeller peripheral speed should be less than 30m/s; suitable for temperature not exceeding 100℃.

Hypalon

S31

S31 can be used for impellers, frame plate liners, cover plate liners and throat bushes,. It is recommended to use for strong acid slurry with mild or moderate corrosion. Maximal particle diameter can be 10mm; impeller peripheral speed should be less than 30m/s; suitable for temperature not exceeding 110℃.