API Material Classification

API Material Reference Table

A-7

Casing    AUS
Internal Parts    AUS
Shaft    AUS
Impeller    AUS

A-8

Casing    316 AUS
Internal Parts    316 AUS
Shaft    316 AUS
Impeller    316 AUS

C-6

Casing    12% CR
Internal Parts    12% CR
Shaft    12% CR
Impeller    12% CR

D-1

Casing    Duplex
Internal Parts    Duplex
Shaft    Duplex
Impeller    Duplex

D-2

Casing    Superduplex
Internal Parts    Superduplex
Shaft    Superduplex
Impeller    Superduplex

I-1

Casing    Cast Iron
Internal Parts    Cast Iron
Shaft    Carbon Steel
Impeller    Cast Iron

I-2

Casing    Cast Iron
Internal Parts    Bronze
Shaft    Carbon Steel
Impeller    Bronze

S-1

Casing    Carbon Steel
Internal Parts    Cast Iron
Shaft    Carbon Steel
Impeller    Cast Iron

S-3

Casing    Carbon Steel
Internal Parts    Ni-Resist
Shaft    Carbon Steel
Impeller    Ni-Resist

S-4

Casing    Carbon Steel
Internal Parts    Cast Iron
Shaft    Carbon Steel
Impeller    Carbon Steel

S-5

Casing    Carbon Steel
Internal Parts    Carbon Steel
Shaft    AISI 4140
Impeller    Carbon Steel

S-6

Casing    Carbon Steel
Internal Parts    12% Cr
Shaft    AISI 4140
Impeller    12% Cr

S-8

Casing    Carbon Steel
Internal Parts    316 AUS
Shaft    316 AUS
Impeller    316 AUS

S-9

Casing    Carbon Steel
Internal Parts    Ni-Cu Alloy
Shaft    Ni-Cu Alloy
Impeller    Ni-Cu Alloy