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Help CenterAISI 4140 4130 8620 4340 Alloy Steel Round Bar Chrome Moly Nickel Alloy Cold Drawn Hot Rolled Rod For Automobile Engineering Machinery
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1. Product Introduction
Our alloy steel round bar adds Cr, Mo, Ni alloy elements to improve tensile strength, toughness and wear resistance, ideal for heavy-load auto & engineering components. All steel bars go through homogenization heat treatment, uniform metallographic structure, good hardenability for quenching & tempering / carburizing treatment. Complete MTC certification provided, strict raw material inspection before delivery.
2. Main Export Grades
4130, 4140 (Chrome Moly Steel), 8620, 4340 (Nickel-Chrome-Moly Steel)
3. Size Range
Diameter 6mm - 300mm, hot forged large blank & cold drawn bright bar in stock, custom cutting service supported.
4. Core Advantages
High tensile strength, strong impact resistance for heavy load parts
Stable mechanical performance after heat treatment
Low impurity, uniform internal texture, no shrinkage cavity
Support spectrum re-inspection to match ASTM AISI standard
5. Application
Automobile gear, transmission shaft, hydraulic cylinder shaft, engineering machinery forging parts, mining heavy equipment, pipeline flange, new energy vehicle chassis accessories.
6. Packing & Shipping
Moisture-proof anti-rust packing, steel strip bundling. Flexible trade terms: FOB Shanghai, CIF, CFR acceptable. Stable monthly stock, support long-term bulk cooperation for overseas manufacturers.
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