Honed Tube
Grade：ST 52，stainless steel, alloy steel, and special steel
Size range：
Inside diameter: from 40 to 1000mm,
Max length:20 meters.
Straightness: 0.5 /1000
Tolerance EXT: DIN 2391
Tolerance INT: ISO H7, H8, H9
Roughness(Ra): 0.1 to 0.2µ
Impact test: -20℃, 27 J (only for special requirement)
Type：cold drawing, normalizing treatment, honing.
ST 52 CHEMICAL COMPOSITION (%)
|
Si
(Max)
|
Mn
(Max)
|
C
(Max)
|
P
(Max)
|
S
(Max)
|
|
0.55
|
1.6
|
0.22
|
0.025
|
0.025
|
MECHANICAL PROPERTIES
| Tensile strength Min |
Yield Point Min |
Elongation % Min |
| 580 N/mm² | 420 N/mm² | 10 |
Marking: JW, ID, OD
Package:
Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends.
banding with steel/plactic strips, braiding parcel at outside.
