Inquiry

Send Email To Us

ASTM A179/A179M

OD(mm)　

Wall Thickness Unit(mm)

2

2.5

3

3.5

4

4.5

5

6

6.5-7

7.5-8

8.5-9

9.5-10

11

12

Φ25-Φ28

●

●

●

●

●

●

Φ32

●

●

●

●

●

●

Φ34-Φ36

●

●

●

●

●

●

Φ38

●

●

●

●

●

●

Φ40

●

●

●

●

●

Φ42

●

●

●

●

●

Φ45

●

●

●

●

●

●

Φ48-Φ60

●

●

●

●

●

●

●

Φ63.5

●

●

●

●

●

●

●

Φ68-Φ73

●

●

●

●

●

●

Φ76

●

●

●

●

●

●

●

●

●

●

Φ80

●

●

●

●

●

●

●

●

●

●

Φ83

●

●

●

●

●

●

●

●

●

●

Φ89

●

●

●

●

●

●

●

●

●

●

Φ95

●

●

●

●

●

●

●

●

●

●

Φ102

●

●

●

●

●

●

●

●

●

●

Φ108

●

●

●

●

●

●

●

●

●

●

Φ114

●

●

●

●

●

●

●

●

●

Φ121

●

●

●

●

●

●

●

●

●

Φ127

●

●

●

●

●

●

●

●

●

Φ133

●

●

●

●

●

●

●

●

●

Φ140

●

●

●

●

●

●

●

●

Φ146

●

●

●

●

●

●

●

●

Φ152

●

●

●

●

●

●

●

●

Φ159

●

●

●

●

●

●

●

●

Φ168

●

●

●

●

●

●

●

●

Item

Condition (when)

Tolercance

Nominal bend radius ≤ 2 x nominal OD

less than or equal to 12%

Ovality

2 x nominal OD < Nominal bend radius ≤ 4 x nominal OD

less than or equal to 10%

Nominal bend radius > 4 x nominal OD 

less than or equal to 5%

Nominal bend radius ≤ 2 x nominal OD

0.75 x nominal wall

Mimimum wall thickness

2 x nominal OD < Nominal bend radius ≤ 4 x nominal OD

0.8 x nominal wall

Nominal bend radius > 4 x nominal OD

0.9 x nominal wall

Nominal bend radius ≤ 8" (200mm)

+/-3/64"(1mm)

Bending Radius

8" (200mm) < Nominal bend radius ≤ 16" (400mm)

+/-1/16"(1mm)

Nominal bend radius >16" (400mm)

+/-5/64"(1mm)

Disrance between legs

Max 1/16"(1.5mm)

Wall thinning of bending area

Max 17%

Difference between leg lengths at the ends

Leg length ≤ 16' (4.88m)

+1/8"(3mm)

Leg length > 16' (4.88m)

+3/16"(5mm)

Deviation from plane of bend

≤ 3/16"(1.5mm)

Flattening on bend

≤ 10% nominal diameter

Straight leg length

≤5m

+1/8"(3mm)

>5m

+3/16(5mm)

Total tube length including radius

≤6m

+3/16(5mm)

>6m

+5/16"(8mm)

C

Mn

P≤

S≤

Si≤

0.06-0.18

0.27-0.63

0.035

0.035

0.25

Yield Strength (Mpa)

Tensile Strength (Mpa)

Elongation (%)

≥180

≥325

≥35

ASTM

UNS NO.

KOREA/JAPANES

GERMAN

BRITISH

BELGIAN

FRENCH

ITALIAN

KS/JIS Symbol

KS/JIS Numbe

Re

DIN Type

DIN

Materiral
Number

Re

B.S

B.S Grade

Re

NBN Type

NBN Grade

Re

AF

NF

Re

UNI Type

UNI

Re

ASTM A179

K01200

STBH 340 / STB 35

D3563 / G3461

St 35.4

1629

1.0309

3606

CFS 320

D 37-2

629

(3b)

TU 37 C

A49-215

(3a)

C 14

5462

St 35.8

17175

1.0305

Plus
DIN 2391 Gutegard C.NBK