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ST52 DIN2391 Hydraulic Cylinder Honed Seamless Tube
QUICK DETAILS:
| Grade | ST 52,stainless steel, alloy steel and special steel |
| Inside diameter | 40 to 1000mm (skiving tube ID max 500mm |
| Max length | 20m. |
| Straightness | 0.5 /1000 |
| Tolerance EXT | DIN 2391 |
| Tolerance INT | ISO H8 |
| Roughness(Ra) | 0.2 to 0.4µ |
| Type | cold drawing, normalizing treatment, honing or 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 |
630 N/mm2 | 560 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°C, 27 J (only for special requirement)
OUR ADVANTAGES
| QUALITY | Raw Material | Bao Steel,Tianjin,Chendu etc famous fefinery steel mills | |||||
| Certification | ISO 9001:2000 International quality system | ||||||
| Warranty Period | 12 monthes Normally (Special important customer for 5 years) | ||||||
| Record of Production | keep inspection for 5 years | ||||||
| Production | Equipment | Honing machine at 10 sets,Two lathers machine,Deep hole boring | |||||
| Honing machine | Producing:ID 38.1mm-600mm max length of 12m,Output 10tons per shift | ||||||
| Lather machine | Length at 5m and 8m separately,Max OD at 500mm | ||||||
| Deep hole boring | Machine length at 9m,OD at 500mm | ||||||
| Roughness of tube | 0.2um | ||||||
| Skiving & burnishing machine | Max ID machined 530mm | ||||||
| Surface finish for bar | Plating on bar for Bosch Rexroth,also made chrome,nickel,ceramic,thickness 10um-100um etc. | ||||||
| High Precision | Honed tube(Roughness 0.2um,Straightness less than0.15/1000) | ||||||
| Piston rod(plating thickness 10-100microns,Roughness 0.2,straightness less than 0.15/1000) | |||||||
| Service | International Standard | Tube and rod cut flatly,no chrome marks on surface of rod. | |||||
| Deliver time | Average deliver time within 25-30 days,Tube output 300tons per month,200tons for bars. | ||||||
| Package | Rod(cardboard that film attached inside,prevent scrath and oil rusting) | ||||||
| Tube(putted rusted oil in inside surface caped at both ends prevent from air rusted) | |||||||
Production Equipment
Inspection Equipment
Mill Test Certificate
THIRD-PARTY INSPECTATION CERTIFICATE
ISO 9001 Certificate
2013 Exhibition Information