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1.4122 | X39CrMo17-1
Key Features
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Martensitic stainless steel with Mo addition for improved corrosion resistance.
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High hardness and strength after heat treatment.
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Suitable for applications requiring strength + corrosion resistance balance.
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Good wear and abrasion resistance.
Size Range
Round Bar
80 mm To 450 mm Diameter
Flat Bar
80mm*80mm To 510mm*260mm
About the Steel
1.4122 steel is a martensitic stainless steel offering a good balance of hardness, corrosion resistance, and toughness. It provides higher strength than standard 420 due to molybdenum addition, while retaining moderate ductility. In the hardened and tempered condition, it achieves high wear resistance with stable mechanical properties. However, its corrosion resistance is lower than austenitic grades, making it best suited for mildly aggressive environments. It also responds well to heat treatment, allowing precise control over hardness and mechanical performance.
Applications
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Industrial Components
Used in shafts, valves, and pump parts requiring strength and corrosion resistance.
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Cutlery & Tools
Preferred for knives, scissors, and surgical instruments for sharpness retention.
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Automotive Industry
Applied in engine components, bearings, and wear parts.
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Chemical Equipment
Used in moderately corrosive environments where durability is required.
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Pump & Valve Parts
Applied in housings, seats, and spindles exposed to moderate corrosion and pressure.
Manufacturing
Process flow for manufacturing 1.4122 steel
Melting
Ingots melted in EIF, impurities fully killed and followed LRF and VD process at Client's request. Ingots annealed
Forging
Press or Hammer Forged with reduction ratio of 3.5 to 4.5 times
Heat Treatment
Full annealing and QT cycle post forging to 277 to 311 BHN or any special QT process as per Client's TDC
Quality Test
Ultrasonic, Hardness, Mechanical, Microstructure testing of the metal at a NABL approved lab
Proof Machining
Proof machining of Forged Rounds and Flats as per Client's requirements
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