304/304L/316L Stainless Steel Pipes

Name

Stainless   Steel Seamless & Welded Tube &Pipe

Items

Square   tubes, round tubes, oval pipes, special shaped pipes,

empaistic   pipes, fittings

Standard

ASTM   A554, A249, A269 and A270

Material Grade

201:   Ni 0.8%~1%

202:   Ni 3.5%~4.5%

304:   Ni 8%, Cr 18%

316:   Ni 10%, Cr 18%

316L:   Ni10%~14%

430:   Cr16%~18%

Outer Diameter

9.53mm--159mm

Thickness

0.3mm   - 3.0mm

Length

6m   or as customers' request

Tolerance

a)   Outer Diameter:  +/- 0.2mm

b)   Thickness: +/- 0.02mm

c)   Length: +/- 5mm

Surface

180G,   240G, 320G Satin / Hairline

400G,   600G Mirror finish

Application

handrail,railing,   staircase, weldmesh screen,door,window, balcony,fence,bench,furniture,etc

Test

Squash   test, extended test, water pressure test, crystal rot test, heat treatment,   NDT

Mechanical Property

Material Item    

201

202

304

316

Tensile Strength

≥535

≥520

≥520

≥520

Yield Strength

≥245

≥205

≥205

≥205

Extension

≥30%

≥30%

≥35%

≥35%

Hardness (HV)

<105

<100

<90

<90