Grade :- ST52 Specification DIN2391 Delivery Condition BK +SDiameter :- 40mm to 400mmSpecial Pipe :- Thick Wall PipesTypes :- SeamlessTechnique :- Cold DrawnSection Shape :- RoundDimension Accuracy :- 1. Tolerances on Inner Diameter :- ISO H82. Tolerances on Wall Thickness :- Diameter >40 +- 0.2mm, Diameter 40100 +- 0.5mm, 3. Surface Roughness :- Ra = 0.2 0.4 MicronLength of Tubes :- Random ( 5 to 7 meters ) or Fixed length as per order of confirmationMaterial Certificates :- As per EN 10204 3.1BScope :- Hydraulic Cylinder Tube for Swivel Crane, Injection Machine, Construction Machine, Material Handling Machinery and other Hydraulic Machinery Parts