Types / Features / Applications

TYPES

GRADES

FEATURES

APPLICATIONS

304

JIS

A
U
S
T
E
N
T
I
C

304

SUS 304

Excellent for mability & Weldability, General corrosion Heat resistance, Low temperature

Low temperature and general applications (hand-rails, bacony supporting consturctions, bus and lorry body

304L

SUS 304L

toughness Impoved grain boundary attack resistance (through a carbon reduction in SUS 304L

construction, industrial kitchens, cubic icemaking machine, machines and equipment, hospital product (wheel chair, bed), water piping, sugar mill, dairy food industry, etc.

316

SUS 316

Improved general and pit corrosion resistance

Petrochemical plant, systhetic fertilizer, inorganic acid

316L

SUS 316L

(Through a Molybdenum addition)

industries, Nuclear power plant, Low temperature application, etc.

Surface Finished

FINISHED

DESCRIPTIONS

ROUND TUBE

Unpolished
 # 120 ~ 600
Mirror Finished Hair-line Finished

As welded - welding bead removed Grinding by # 120 ~ 600 grits Compound Buffing polish
 Grinding by # 120 ~ 180 grits

SQUARE TUBE

Unpolished
# 120 ~ 180

As welded - welding bead removed Grinding by # 120 ~ 180 grits

Weight Calculation

MATERIAL
GRADE

DENSITY

FORMULA

304, 304L

7.93

(D-T) X T X 0.02491

316, 316L

7.98

(D-T) X T X 0.02507

Dimentional Tolerance

Unit : mm


R
O
U
N
D

T
U
P
E

OUTSIDE DIAMETER

TOLERANCE

A

B

under 25.4

0.25

0.15

25.4 - 38.1 excl.

0.18

38.1 - 50.8 excl.

0.20

50.8 - 63.8 excl.

0.50

0.25

63.5 - 76.2 excl.

0.30

76.2 - 101.6 excl.

0.38

Wall Thickness

Tolerance

0.5 - 3.0

+-1%

Length

Tolerance

O.D. under 50.8

+3 / -0

O.D. under 50.8

+n/a / -0

Chemical Composition

MATERIAL
GRADE

CHEMICAL COMPOSITION (%)

C

SI

Mn

P

S

Ni

Cr

Mo

Others

AISI 304
AISI 304L
AISI 316
AISI 316L

<0.08

<1.00

<2.00

0.040

0.030

8.00 ~ 20.00

18.00 ~ 20.00

-

-

<0.03 0

<1.00

<2.00

0.040

0.030

9.00 ~ 13.00

18.00 ~ 20.00

-

-

<0.08

<1.00

<2.00

0.040

0.030

10.00 ~ 14.00

16.00 ~ 18.00

2.00 ~ 3.00

-

<0.03 0

<1.00

<2.00

0.040

0.030

12.00 ~ 16.00

18.00 ~ 20.03

2.00 ~ 3.00

-

Mechanical Properties

MATERIAL GRADE

MECHANICAL PROPERTIES

ROUND AND SQUARE

ROUND

Tensile Strength

Yield Strength

Elongation

Bending

Flattening

Flarin g

Kgf/mm (n/mm)

Kgf/mm (n/mm)

Kgf/mm (n/mm)

No. 1

No. 2

AISI 304
AISI 304L
AISI 316
AISI 316L

53 (520)

21 (206)

>35%

180 3D

<2/3D <1/2D

1.2D

49 (481)

18 ( 177)

>35%

-

-           -

-

53 (520)

21 ( 206)

>35%

180 3D

<2/3D <1/2D

1.2D

49 ( 481)

18 (177)

>35%

-

-           -

-