Straightness:0.5 /1000
Tolerance EXT:DIN 2391
Tolerance INT:ISO H8
Roughness(Ra):0.2 to 0.4µ
Grade: ST 52
Size range: Inside diameter from 50 to 500mm,
Max length: 12m.
Type:cold drawing, normalizing treatment, skiving.
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
Welcome to order more. by E-mail:sales@sunnysteel.com | www.sunnysteel.com
Marking: SunnySteel, 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)
Tolerance EXT:DIN 2391
Tolerance INT:ISO H8
Roughness(Ra):0.2 to 0.4µ
Grade: ST 52
Size range: Inside diameter from 50 to 500mm,
Max length: 12m.
Type:cold drawing, normalizing treatment, skiving.
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
Welcome to order more. by E-mail:sales@sunnysteel.com | www.sunnysteel.com
Marking: SunnySteel, 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)