ST52-Honed tube+BKS Standard;DIN2391 En10305 Material;ST52 Straughtness:0.3-0.8mm/m Inside Roughness;0.2~0.6um
ST52-Honed tube+BKS:
Tensile Strength:580σbN/mm2
Yield Strength:420σsN/mm2
Elongation:12%
Honed H8 ,these tubes are suitable for hydraulic cylinder manufacturer.
Straightness:0.3~0.8mm/m
Inside finish Roughness:0.2~0.6um
Dimensional Accuracy:
1.Tolerance on Inner Diameter:ISOH7 H8 H9
2.Tolerance on Wall Thickness:
Diameter:>40 +/-0.2mm
Diameter:40<100 +/-0.3mm
Diameter>100 +/-0.5mm
3.Surface Roughness:Ra=0.3~0.4micron
Length:Random length4.5-6m or as per order confirmation
Mill Test Certification :En10204/3.1B
4.Delivery condition:BKS
Marking:Supplier trademark,steel grade,and specification are stenciled on the tube.
Certificates:Mill certificates,with chemical analysis and mechanical tests can be issued and delivered with the goods.
ST52- Honed tube+BKS
