EN 32B Carbon Steel
We are EN 32B Carbon Steel Manufacturers, Suppliers, and Exporters in Mumbai, India. STEEL MART is an ISO 9001:2015 certified company established in 1986, with decades of experience in supplying high-quality carbon steel products to various industries. We specialize in manufacturing and supplying EN 32B Carbon Steels (BS 970 080M15) that meet national and international quality standards for general engineering, automotive, and machine tool applications. EN 32B Carbon Steel is a low carbon case hardening steel known for its exceptional carburizing response, producing an extremely hard wear-resistant outer case (up to 58-62 HRC) while retaining a soft, tough, shock-resistant core. This grade is widely used in engineering components requiring high surface wear resistance alongside core ductility to withstand impact loads. EN 32B is typically supplied in bright drawn or hot rolled condition, ensuring excellent machinability and dimensional accuracy. This carbon steel grade is widely used for manufacturing gears, pinions, bushes, cams, rollers, king pins, spindles, and levers.
Our EN 32B Carbon Steels are 100% Prime – Tested & Guaranteed, ensuring precise chemical composition, dimensional accuracy, and consistent mechanical properties. Each product is supplied with proper Mill Test Certificates (MTC) confirming compliance with BS 970 / EN standards. STEEL MART follows strict quality control procedures and ensures timely delivery.
What is EN 32B Carbon Steel?
EN 32B Carbon Steel (BS 970 080M15) is a low carbon case hardening steel grade designed for components requiring high surface wear resistance alongside a tough, ductile core. Supplied in bright drawn or hot rolled conditions, it offers excellent machinability and uniform response to carburizing for gears, pinions, bushes, cams, and rollers.
High Case Hardness
Carburizes to achieve up to 58–62 HRC surface wear resistance.
Excellent Machinability
Easily cut and turned for intricate gears, bushes, and pins.
Ductile Shock Core
Low carbon core absorbs sudden impact and prevents brittle cracking.
Controlled Case Depth
Allows precise control of carbon diffusion for desired case depth.
Good Weldability
Low carbon content allows easy welding prior to heat treatment.
Certified Quality
Supplied with full MTC and strict quality compliance.
Why Choose STEEL MART for EN 32B Carbon Steel
STEEL MART is the preferred choice for purchasing EN 32B Carbon Steel due to its strong reputation for quality and reliability. With over 40 years of experience in the steel industry, the company ensures that every product meets strict industry standards. The company follows strict quality inspection procedures to ensure that every EN 32B Carbon Steel product meets international standards.
Each product is carefully tested to ensure durability, strength, and performance. Customers trust STEEL MART for consistent quality, competitive pricing, and timely delivery. The company maintains a large inventory to meet urgent and bulk requirements efficiently. In addition to EN 32B Carbon Steels, STEEL MART also supplies a wide range of carbon steel and alloy steel products for various industrial applications.
Chemical Composition of EN 32B Carbon Steel
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.10 – 0.18 % |
| Manganese (Mn) | 0.60 – 1.00 % |
| Silicon (Si) | 0.05 – 0.35 % |
| Sulphur (S) | 0.050 % Max |
| Phosphorus (P) | 0.050 % Max |
This chemical composition ensures excellent carburizing response and core toughness.
Equivalent Grades of EN 32B Carbon Steel
| Standard | Equivalent Grade |
|---|---|
| BS 970 | 080M15 / EN 32B / EN 32 |
| AISI / SAE | 1015 / 1018 / 1020 |
| DIN / W.Nr. | C15 / 1.0401 |
| EN | C15E / 1.1141 |
| JIS | S15C |
These equivalent grades ensure global compatibility across engineering standards.
Mechanical Properties of EN 32B Carbon Steel
The mechanical properties of EN 32B Carbon Steels make them ideal for case-hardened components. After carburizing and quenching, it provides a high surface hardness of 58–62 HRC while maintaining a tough core with 430–550 MPa tensile strength.
Heat Treatment & Carburizing of EN 32B Carbon Steel
EN 32B Carbon Steels undergo controlled case hardening treatment to form a hard wear-resistant surface.
Carburizing
Heated to 880°C–930°C in carbon media for deep carbon diffusion.
Core Refining
Heated to 870°C–900°C and cooled to refine core grain structure.
Case Hardening
Reheated to 760°C–780°C and quenched in oil/water for 58–62 HRC case.
Stress Relieving Temper
Tempered at 150°C–200°C to relieve quenching stress without softening.
EN 32B Carbon Steel Industry Applications
EN 32B Carbon Steels are widely used across light-to-medium automotive and machine components.
Light-Duty Gears & Pinions
Used for case-hardened gears, pinions, and sprockets.
Automotive Pins & Shackles
Used for king pins, gudgeon pins, shackles, and bushes.
Cams & Rollers
Used for high-friction cams, rollers, and guide pins.
Spindles & Valve Lifters
Used for wear-resistant spindles, levers, and valve lifters.
Agricultural Equipment
Used in farm machinery pins, bushings, and linkages.
General Machinery
Used in machine tool wear parts, ratchets, and Pawls.
Availability and Customization
At STEEL MART, we supply EN 32B Carbon Steels in a wide range of sizes and specifications.
| Diameter | Diameter ranging from 10 mm to 400 mm |
| Condition | Available in As-Rolled / Normalized / Case-Hardened / Bright Drawn condition |
| Length | Standard lengths from 3 meters to 6 meters |
| Finish | Bright drawn, black hot rolled, and turned finish available |
| Customization | Custom cut sizes available as per project requirements |
| Services | Machining, cutting, turning, and grinding services available |
| Certification | Supplied with Mill Test Certificates and inspection reports |
Our strict quality control ensures consistent quality.
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EN 32B Carbon Steel (BS 970 080M15) is a premier low-carbon case hardening steel widely used in automotive, machinery, and tool component manufacturing. With its exceptional carburizing capacity, high surface hardness (58–62 HRC), and shock-absorbing core toughness, it provides long-term reliability for gears, pinions, king pins, bushes, and rollers. Supplied by STEEL MART with strict quality control and Mill Test Certification, EN 32B Carbon Steel is a cost-effective and dependable solution for wear-resistant engineering applications.
Frequently Asked Questions
Common answers regarding EN 32B Carbon Steel specifications and parameters.
Its low carbon content (0.10–0.18%) allows deep carbon diffusion during carburizing, resulting in a 58–62 HRC wear-resistant case with a tough, ductile core.
The outer case achieves 58 to 62 HRC hardness, while the core remains ductile with 130 to 170 HB hardness.
BS 970 080M15 / EN 32B, AISI 1015 / 1018, DIN C15 (1.0401), and JIS S15C.
Light-duty gears, pinions, shackles, bushes, cams, rollers, king pins, gudgeon pins, and valve lifters.
Round bars, Flat bars, Hex bars, Plates, Sheets, and custom cut sizes.