ASTM A-554 TIG Welded Stainless Steel Tube Grade 304/316/201/430/441/443 for Construction and Decoration

Material

304:0cr18ni9, 0cr17ni8

201:1cr17mn6ni5n,1cr13mn9ni1n

316:0cr17ni12 or as customer’s request

Size(round pipe)

9.5, 12.7, 15.9, 17, 18, 19.1, 20, 21, 22.2, 23, 25.4, 28, 318, 35, 60, 63.5, 73, 76.2, 88.9, 101.6, 

114.3, 127, 133, 159, 168, 219 mm or customized

Size (square pipe)

10×10,12×12,18×18,23×23,38×38,50×50,70×70,100×100,20×10,23×10,24×12,25×13,36×23,

40×20,50×20,60×15,75×45,80×60,95×45,100×60,150×100 mm or customized

Size (oval pipe)

30×15,80×40 mm os customized

Thickness

0.24-3 mm

Length 

6m or according to customer’s request

Outer diameter

6.35-219mm

Tolerance 

Outer diameter :±0.2mm

Thickness :±0.02mm

Length :±0.5mm

Process method

Code drawn, annealed with nitrogen protection, ultrasonic,automatic shape, polished

Finishing 

A: sanded  B: 400#-600# mirror  C: hairline brushed  D: TIN titanlum

E : HL brushed & mirror (two kinds of finishing for one pipe)

 Chemical Composition 

Material

C

Si

Mn

P

S

Cr

Ni

201

≤0.12

≤0.75

9.5-12.5

≤0.045

≤0.03

13-16

0.8-1.5

304

≤0.08

≤0.75

≤2.0

≤0.045

≤0.03

18-19

8-10

316

≤0.08

≤1.00

≤2.0

≤0.035

≤0.03

10-14

16.0-18.5

430

≤0.12

≤0.75

≤2.0

≤0.04

≤0.03

16-18

≤0.6