42CrMo4 Alloy Steel Round Bar, 42crmo4 Steel Bar for Construction
42CrMo4 Alloy Steel Round Bar, 42crmo4 Steel Bar for Construction
Feature
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42CrMo4 alloy steel round bar is a premium medium-carbon alloy steel, specifically engineered for high-strength gear manufacturing. It delivers an optimal balance of toughness, core strength, and surface wear resistance after heat treatment.
1). Material: 45#, 16MnCr5, 35SiMn, 40Cr, 40CrNi, 40MnB, 42CrMo, 35CrMo, as per customer’s requirement
2). Packing: Standard export packaging for secure sea freight.
3). Surface: Available as punched, welded, painted, or custom-finished.
4). Size: Precisely manufactured to your specified dimensions and drawings.
As a key high-performance alloy steel, 42CrMo4 round bar is essential for manufacturing safety-critical gears in automotive, railway, and machinery sectors. Modern gear steel, like 42CrMo4, evolves towards higher performance, durability, operational stability, noise reduction, and cost-effectiveness to meet diverse industrial demands.
Gear steel is primarily manufactured from forged or cast steel. Cast steel is employed for large gears exceeding 400mm in diameter or with complex geometries, while forged steel is the standard choice for most applications. Forged gears are further categorized by tooth surface hardness:
1) Soft Tooth Surface (<350 HB):Common materials include 45# steel, 40Cr, and 35SiMn.
2) Hard Tooth Surface (>350 HB):Materials are medium-carbon steels like 42CrMo, 40Cr, and 35CrMo, or low-carbon steels such as 20CrMnTi. The 42CrMo4 alloy steel round baris a premier medium-carbon steel specifically engineered for demanding hard tooth surface gear applications.
1) 42CrMo4 Alloy Steel Round Bar exhibits superior strength, high hardenability, and excellent toughness. It features minimal quenching distortion, along with outstanding high-temperature creep and endurance strength. This material is specifically used for large-section, high-strength forgings such as heavy-duty gear blanks for locomotives and machinery, heavily loaded shafts, high-stress connecting rods, deep-well drilling tools, and industrial press dies.
2) 20CrMnTiH Gear Steel is a high-performance carburizing grade, offering excellent hardenability to achieve a hard, wear-resistant surface while maintaining a tough, impact-resistant core after heat treatment. It provides good low-temperature impact toughness and machinability. Widely utilized in the automotive sector, it is specified for critical, high-speed, and heavily loaded components with cross-sections under 30mm, such as transmission gears, pinions, and gear shafts, serving as a key engineering material for demanding carburized parts.
Application
As China metal materials industry leading enterprises, the national steel trade and logistics "Hundred good faith enterprise",China steel trade enterprises, "Top 100 private enterprises in Shanghai”. Shanghai Zhanzhi industry Group Co., Ltd.,(shorted to Zhanzhi Group) takes the" Integrity, Practicality, Innovation, Win-Win " as its sole operation principle, always persist in putting the customer demand in the first place.
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