Steel Round Bar

High-strength alloy steel round bar, grade 34CrNiMo6 (1.6582/SAE 4337), forged and QT treated. Ideal for heavy machinery shafts and gears. Custom sizes, certifications, and competitive factory pricing available.

High strength and toughness alloy steel round bar. Diameter 3mm-500mm with H9/H13 tolerance. Ideal for shafts, gears, and fasteners. ISO/BV/SGS certified. Custom sizes available. MOQ 500kg.

High-strength alloy steel round bar, quenched and tempered for durability. Ideal for construction and machinery parts. Certified to 3.1 standard, with customizable lengths and surface finishes. Ultrasonic tested for quality assurance.

High-strength S355J2+N alloy steel round bar with 355 MPa yield strength. Excellent impact resistance at -20°C. Ideal for construction, bridges, and machinery. Custom sizes available. Durable, weldable, and corrosion-resistant.

High-strength 40Cr alloy steel grinding rod with 45-60HRC surface hardness and ≥12J/cm2 impact value. Custom sizes from 30-200mm diameter, 1000-6000mm length. Ideal for CNC precision automatic applications. Durable, reliable, and export-ready.

Precision cold drawn steel bar in S45C/SAE1045 grade. Diameter 15.1mm with tight -0.1 to 0mm tolerance. Ideal for machining and custom shapes. Available in round, square, hex, and flat. Free samples and OEM support. Durable, high-strength alloy steel for industrial applications.

38CrMoAl nitrided alloy steel round bar offers high wear resistance, fatigue strength, and hardness up to HV800. Ideal for precision shafts, gears, and valves. Custom diameters and lengths available. Certified to DIN 1.8509 and 41CrAlMo7-10 standards.

High-strength 1.8550 nitriding steel bar, quenched and tempered for large-section machinery parts. Excellent wear resistance, 100% UT passed. Custom sizes and surface options available. Ideal for automotive and industrial applications.

High fatigue strength and yield ratio with vanadium refined grain. Ideal for heavy-load springs, valve springs up to 300°C. Custom sizes available. Certified quality.

High-strength 34CrNiMo6 forged steel round bar, 300mm diameter. Offers excellent hardenability, toughness, and wear resistance. Ideal for shafts and gears. Supplied with MTC, ISO, SGS, BV certifications. Custom sizes and surface treatments available.

High-strength SNCM439/4340/40CrNiMo alloy round steel bar, 80-1200mm diameter. EAF+LF+VD process, UT tested per GB/T6402 or SEP1921. Ideal for fasteners, chains, and industrial components. Custom lengths available.

SAE 8620 low-alloy steel bar offers excellent carburizing response and good hardenability. Ideal for gears, shafts, and differentials. Certified to ASTM A322. Custom sizes available.

AISI 8620 low alloy Ni-Cr-Mo case hardening steel bar. Offers high wear resistance, core strength, and toughness. Suitable for gears, shafts, and pins. Available in round bar 8-3000mm. Complies with ASTM, DIN, JIS standards. Custom sizes and finishes available.

38CrMoAl nitriding steel offers high surface hardness, wear resistance, and fatigue strength. Ideal for cylinder liners, gears, and shafts. Complies with GB/T 3077, DIN 1.8509. Custom sizes available.

High-strength 42CrMo4 alloy steel grinding rod, quenched and tempered for hardness HRC28-32. Excellent wear resistance and impact toughness. Ideal for mining and industrial grinding. Available with EN10204 3.1 certification and custom sizes.

High-strength cold drawn steel round bar with 6mm diameter. Meets EN 10025-2 S355JR, SAE1008, SAE1045, SAE1020 standards. Tensile strength ≥610 N/mm², yield ≥355 N/mm². Custom lengths, polished surface, and export packaging available.

High-strength DIN 1.6587 (18CrNiMo7-6) alloy steel round bar with bright peeling surface, 650mm diameter. Excellent core tensile strength and wear resistance for heavy-duty gears, shafts, and bearings. Supports custom heat treatment and sizes.

34CrNiMo6 (1.6582) low alloy steel round bar, 50mm diameter. Heat treatable to 1000-1200 N/mm² tensile strength. Offers good ductility, wear resistance, and impact property. Supplied in bright finish. Ideal for shafts, gears, and high-duty engine components. Custom sizes available.

High-strength case-hardened steel round bar, 980-1270 MPa tensile. Ideal for gears, shafts, and heavy machinery. Certified to EN 10084 and DIN 17210. Custom sizes available with mill test certificate.

SAE 8620 rectangular bar, cold drawn and annealed. Low alloy Ni-Cr-Mo steel with 530 MPa tensile strength and 149 HB hardness. Ideal for gears, camshafts, and fasteners. Offers high wear resistance and core strength. Available in custom sizes. Meets ASTM A29, DIN 1.6523, and JIS SNCM220 standards.