|
|
REMARK : |
|
|
Internal Diameter
Accuracy :
|
H7¡BH8¡BH9 |
|
Internal Roughness
:
|
Ra 0.2£gm~ Ra 0.8£gm
|
|
Standard Length
:
|
3M~11M |
|
Special Length
:
|
12M |
|
Internal Diameter
:
|
18mm~300mm |
|
Material :
|
JIS STKM13C, DIN ST52,
SAE1020 or Mechanical Construction
Use Carbon Steel Pipes,Other Specifications
Can be made Customer Request based
on. |
|
|
| CHEMICAL
ANALYSIS & MECHANICAL PROPERTIES
|
|
Spec
|
Kind
|
Mark
|
Manufacture
|
CHEMICAL COMPOSITION
%
|
|
C
|
Si
|
Mn
|
P
|
S
|
|
|
13
|
A
|
STKM 13A
|
S
E
|
0.25 ¡Ö
|
0.35 ¡Ö
|
0.30
-
0.90
|
0.040
Under
|
0.040
Under
|
|
B
|
STKM 13B
|
|
C
|
STKM 13C
|
|
INDUCTION
|
TENSILE TEST
|
BEND TEST FLATTENING
TEST
|
|
TENSILE
(Kgf/ )
|
YIELD
(Kgf/)
|
ELOVG(%)
|
BEND
ANGLE
|
INSIDE
RADIUS
|
OUTSIDE
RADIUS
|
|
Test Piece
11th 12 th
L
|
5 th
Test Piece
V
|
|
38
|
220
|
30
|
25
|
90
|
6D
|
2/3D
|
|
45
|
310
|
20
|
15
|
90
|
6D
|
3/4D
|
|
52
|
390
|
15
|
10
|
¡Ð
|
¡Ð
|
¡Ð
|
|
|
|
)