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42CMo4QT Seamless Tubes for the Machining Industry
Premium Alloy Steel for Demanding Applications
Steel grade 42CrMo4+QT – when failure is not an option. If you need a reliable, all-purpose alloy steel that can handle extreme loads, high stress, and long service life, 42CrMo4+QT is the proven choice. Engineered for demanding mechanical applications, this steel delivers the ideal combination of strength, toughness, and durability.
Key Advantages
High strength with excellent toughness, perfect for heavily loaded, safety-critical parts
Versatile "workhorse" material for a broad range of components
Proven performance in axles, transmission shafts, and gear wheels
Suitable for additional surface hardening for extra wear resistance
Reliable, stable properties for precise, repeatable machining results
Handles high static and dynamic loads with confidence
Reduces risk of premature wear, distortion, or failure
Supports longer service life and lower maintenance costs
Balanced combination of machinability and mechanical performance
Typical Applications
Axles and shafts (including transmission shafts)
Gear wheels, pinions, and couplings
Heavy-duty machine parts and drive components
High-load bolts and connecting elements
Parts requiring surface hardening for extra wear resistance
Performance Characteristics
Quenched and tempered (QT) condition for optimized mechanical properties
Excellent core strength with good toughness for fatigue resistance
Suitable for additional surface hardening to enhance wear resistance
Important Welding Note: 42CrMo4 is a steel that is difficult to weld. To ensure safety and preserve mechanical properties, always follow the material manufacturer's welding and pre-/post-heat treatment guidelines precisely.
Rely on steel grade 42CrMo4+QT for your next project and secure the performance, stability, and safety your machines demand. Contact us today for technical data, availability, and tailored solutions for your specific application.
Best Alloy Engineering Alloy Pipe as s a reference point for excellence in the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation.
The C...
Best Alloy Engineering Alloy Pipe as s a reference point for excellence in the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation.
The C...
