Name

Flat Bar

Standard

ASTM A554, A312, A249, A269 and A270

Material Grade

304,316,201,202, 316L,430

Size Range

3x20-20x200mm

Length

2-6m or as customers' request

Tolerance

a) width: +/-0. 15mm 

b) Thickness: +/- 0.02mm

c) Length:+/-4. 5mm - 0mm 

Surface

180G, 320G, 400G Satin / Hairline(Matt Finish, Brush, Dull Finish)

400G, 500G, 600G or 800G Mirror finish

Test

Squash test, Extended test, Water pressure test, Crystal rot test, Heat treatment, NDT

Chemical Composition of Material

Composition

   Material

201

202

304

316

430

C

≤0.15

≤0.15

≤0.08

≤0.08

≤0.12

Si

≤1.00

≤1.00

≤1.00

≤1.00

≤1.00

Mn

5.5-7.5

7.5-10

≤2.00

≤2.00

≤1.00

P

≤0.06

≤0.06

≤0.045

≤0.045

≤0.040

S

≤0.03

≤0.03

≤0.030

≤0.030

≤0.030

Cr

16-18

17-19

18-20

16-18

16-18

Ni

3.5-5.5

4-6

8-10.5

10-14

Mo

2.0-3.0

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)

<253

<253

<200

<200