 Origin |
China |
| Grade |
ST52 |
| Technique |
Seamless |
chrome honed tube
(Inside surface honed and outside surface plate chrome)
Grade:ST 52
Metric size
Inside diameter from 40 to 1000mm,
Max length 20m.
Straightness: 0.5 /1000
Tolerance EXT: DIN 2391
Tolerance INT: ISO H8
Roughness(Ra): 0.2 to 0.4µ
Typecold drawing, normalizing treatment, honing or skiving, plate chrome.
CHEMICAL COMPOSITION (%)
|
Si
(Max)
|
Mn
(Max)
|
C
(Max)
|
P
(Max.)
|
S
(Max)
|
|
0.55
|
1.60
|
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
Length: unfixed length or fixed length
Package: banding with steel strips, braiding parcel at outside
Conservation: Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends.
Impact test: -20, 27 J (only for special requirement)
|
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