ASTM 4140 steel has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. ASTM A519 4140 steel Chemical Composition (%): Grade C Mn P≤ S≤ Si Cr Mo 4140 0.38-0.43 0.75-1.00 0.040 0.050 0.15-0.35 0

ASTM A519 4130 is a low alloy steel containing molybdenum and chromium as strengthening agents. The carbon content is nominally 0.30% and with this relatively low carbon content the alloy is excellent from the fusion weldability standpoint. ASTM A519

ASTM A519 Grade 1045 Tubing are ductile and strong Tubing with long wearing properties. These Tubing are manufactured as per ASTM Specification and commercially referred as carbon steel Tubing. ASTM A519 1045 steel Chemical Composition: Grade Cr

ASTM A519 1020 Steel Pipe Size: Outside diameter: 16mm~1016mm Wall Thickness: 2mm~120mm Length: 3m-14m, also can be manufactured according to customers' requirements ASTM A519 Grade 1020 Tubing are low-cost tubing easy to form and shape. These pipes

GB/T 8162 45# Steel Pipe Size: Outer Diameter: 8 –80mm Wall Thickness: 1-12mm Length: 5-10m GB/T8162 45# steel pipe Chemical Composition: Grade C % Si % Mn % Cr % 45# 0.42-0.50 0.17-0.37 0.50-0.80 0.25 GB/T8162 45# steel pipe Mechanic

GB/T 18248 35CrMo Steel Alloy Structural Steel is used make all kinds of fasteners, high pressure pipe and more advanced carburized parts, such as gear, shaft, etc ,which work in the noncorrosive medium and temperature below 250 ℃, working with nitro