• Model NO.：SAE 4140
• out Diameter：20-508mm
• Thickness：2-60mm
• Length：10-13m
• Transport Package：in Bundles
• Specification：89*10
• Trademark：Shandong Zayi
• Origin：China
• HS Code：7304599090
• Production Capacity：50000 Tons,Month

 ProductSAE4140 alloy mechanical seamless steel tube for Machinery IndustryStandard ASTM A519 Material 4140 4135  Surface Black paint, varnish, oil, galvanized Pipe Length 5.8 m to 12 m, can be customized according to the length requirements Pipe Ends Plain Ends, Beveled Ends End Protector 1. Plastic caps (small OD) 2. Iron protector (large OD) Application Fluid pipe, oil pipe, gas pipe, structure pipe, boiler tubes Test Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Productivity  50000 tons per month Min Order 20 ton Remark  Special design available according to requirement4140 chemical composition:CSiMnPSCrMo0.38 - 0.45max   0.40.6 - 0.9max   0.025max   0.0350.9 - 1.20.15 - 0.34135 chemical composition:CSiMnPSCrMo0.3 - 0.37max   0.40.6 - 0.9max   0.025max   0.0350.9 - 1.20.15 - 0.3Manufacturing:


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