Structure

Material

Grade

Number

Group & Category

Delivery Condition

Duplex(Austenitic/Ferritic)

22Cr

TP65-22Cr TP110-22Cr TP125-22Cr

S31803

2 & 22-5-3

SA/CH^⑴

25Cr

TP75-25Cr TP110-25Cr TP125-25Cr

S31260

2 & 25-7-3

SUP25Cr

TP80-SUP25Cr TP90-SUP25Cr TP110-SUP25Cr TP125-SUP25Cr

S32750 S32760 S39274

2 & 25-7-4

SA/CH

Austenitic Fe-base

TDJ028

TP110-TDJ028 TP125-TDJ028

N08028

3 & 27-31-4

CH

TDJ2535

TP110-TDJ2535 TP125-TDJ2535

N08535

3 & 25-32-3

Austenitic Ni-base

TDJ825

TP110-TDJ825 TP125-TDJ825

N08825

4 & 21-42-3

CH

TDJG3

TP110-TDJG3 TP125-TDJG3

N06985

4 & 22-50-7

CH

No.

Application

Steel Types

Specification

Outer Diameter

Wall Thickness

1

Boiler tubes

304H,347H,347HFG,Super304H,HR3C,T91,etc.

Φ38-219

3.5-28

2

Petroch emical

Heat-exchanger tube

304L,321,316L,310S,347,Duplex steel, etc.

Φ19-89

2-4.5

boiler tube

Φ159-325

6-28

3

Petroleum and oil-gas industry casing, tubing & line pipe

L80-13Cr,Super13Cr,Duplex,Nickel base alloys etc.

Φ73-426

5.5-25

4

Pipe used in railway, chemical industry, etc.

Austenitic,Ferritic,Duplex etc.

Φ6-762

1-40

5

Pipe used in nuclear power, aerospace, military use, etc.

304L,316L,316LN,Nickel base alloys etc.

Φ6-762

1-40

6

Welding pipe

Austenitic,Ferritic,Duplex etc.

Φ25-4800

1-50