15NCD4
15NCD4 is a nickel-chromium-molybdenum case hardening alloy steel known for its excellent toughness, fatigue resistance, and reliable core strength after heat treatment. Lanoit Special Steel Industries is one of the largest and most reliable suppliers, distributors, and manufacturer-supported stockists of 15NCD4 steel in Mumbai, India. We supply 15NCD4 round bars, flats, plates, and customized sections in certified quality for gears, shafts, aerospace, defense, and automotive components with complete mill test certificates.
MANUFACTURING & AVAILABILITY
Lanoit Steel Industries supplies 15NCD4 in various conditions including As-Rolled, Annealed, Normalized, and Quenched & Tempered (Q&T), catering to diverse industrial requirements from oil & gas downhole tools to automotive drive shafts. Lanoit Special Steel Industries is recognized as one of the leading suppliers of specialty steel grades and round bars, serving industries that demand high-quality materials and reliable sourcing. With a focus on a wide range of steel products, Lanoit Special Steel Industries is considered among the top providers for special steel needs.
| Finish Condition | Size Range (MM) | Size Range (Inches) | |
|---|---|---|---|
| Hot Rolled | 16mm – 300mm | 5/8" – 12" | |
| Cold Rolled | 5mm – 100mm | 3/16" – 4" | |
| Peeled & Polished | 20mm – 150mm | 3/4" – 6" | |
| Ground & Polished | 5mm – 80mm | 3/16" – 3" | |
| Forged | 200mm – 800mm | 8" – 32" | |
| Proof Machined | As per drawing | As per drawing |
Heat Treatment Guide & Properties
15NCD4 is typically carburized at 880-930°C followed by oil quenching and tempering to obtain a hard wear-resistant surface with a tough core. Material can also be supplied in annealed, normalized, or quenched & tempered condition depending on application requirements.
Normalizing
Refines grain structure and improves machinability.
Hardening
Oil quenching after carburizing for maximum strength.
Tempering
Adjusts hardness, strength, and toughness as required.
Standard Lengths
3m 6m 9m
3 - 9 meters
Custom cutting available
■ Chemical Composition
The carbon content of 15NCD4 is maintained between 0.12–0.19% to provide optimal case hardening response and core toughness. Controlled levels of chromium, nickel, and molybdenum improve hardenability, strength, and fatigue resistance. Phosphorus and sulfur are limited to prevent brittleness and premature failure under stress conditions.
■ Mechanical Properties
15NCD4 offers good strength, fatigue resistance, and toughness after heat treatment. It is commonly used for heavily loaded mechanical components where both wear resistance and core strength are required.
Quality & Standards
Materials are processed and reviewed following standard procedures. Various checks are performed to assess general quality and consistency. Our products are throughly tested for grade 15NCD4. Lanoit Special Steel Industries is a recognized provider in the steel sector, known for supplying a wide range of steel products. The company works with experienced teams and standard practices to support reliable material availability.
ISO 9001:2015
Standard quality management processes are followed for routine assessments.
Ultrasonic
Inspections may be conducted to check internal structure according to common practices.
Mechanical
Mechanical properties are examined using standard testing methods.
Chemical
Chemical composition is assessed through routine analysis techniques.
Industries We Supply
Lanoit Special Steel Industries is one of the leading suppliers and exporters of steel, catering to a wide range of industries worldwide. We supply multiple grades of steel in round bars and other forms, meeting diverse application requirements with consistent quality and reliable delivery.
Oil, Gas & Energy
Steel supplied for critical applications where reliability and performance are essential under extreme operating conditions.
- Round Bars
- Forged Components
- Flanges & Fittings
Automotive & Engineering
Supporting OEMs and component manufacturers with consistent quality steel for precision and high-load applications.
- Shafts & Axles
- Transmission Parts
- Machined Components
Manufacturing & Industrial Machinery
Widely used across general engineering, heavy machinery, and equipment manufacturing.
- Round Bars
- Gear Blanks
- Hydraulic & Mechanical Parts
Infrastructure, Mining & Agriculture
Supplying durable steel products for demanding environments and long service life.
- Structural Components
- Wear Parts
- Fasteners & Bolting
Frequently Asked Questions
Common queries about 15NCD4 selection, processing, and application.
GLOBAL REACH
Lanoit Special Steel Industries Serving Industries Worldwide
India
- Mumbai, Maharashtra
- Pune, Maharashtra
- Ahmedabad, Gujarat
- Chennai, Tamil Nadu
- Delhi, NCR
- Bangalore, Karnataka
- Hyderabad, Telangana
- Vadodara, Gujarat
Middle East
- Dubai, UAE
- Abu Dhabi, UAE
- Riyadh, Saudi Arabia
- Jeddah, Saudi Arabia
- Doha, Qatar
- Muscat, Oman
- Kuwait City, Kuwait
- Manama, Bahrain
Europe
- London, UK
- Berlin, Germany
- Paris, France
- Milan, Italy
- Madrid, Spain
- Antwerp, Belgium
- Rotterdam, Netherlands
Americas & Asia
- New York, USA
- Houston, USA
- Toronto, Canada
- Singapore
- Kuala Lumpur, Malaysia
- Jakarta, Indonesia
- Bangkok, Thailand
Looking for a Specific Steel Grade?
Lanoit Special Steel Industries offers a comprehensive range of steel grades tailored to meet diverse industrial needs.
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