Standard DIN2391, EN10305, ASTM A519, GB/T 8713 etc. Material ST45, ST52, E355, E355SR, STKM13C, 27SiMn SAE1020, C20 Q235B, CK45, etc. Heat treatment BK+S condition Specification Outer diameter(mm)                               Inner diameter(mm)                               50-299 40-250 I.D Tolerance H8~H9 Length 3-9 Mtr (Suggested length 3-5.8 Mtr suitable for 20' container) Straightness 0.3/1000 ID roughness RA 0.4 micron(max) Technology Honing Scope Honed tube for hydraulic cylinder, crane, injection machine and construction machine application
Escalator Step Chain, Outdoor Type Chain, Heavy Load Type Chain, Moving Walk Step Chain Ningbo Xinda Elevator Traction Technology Co., Ltd. , https://www.xinda-elevator.com
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Product
Specifications
E355 Carbon Seamless Precision SRB H8 Honed Steel Tube