OHNS Steel Manufacturers in Pune | Bhagyalaxmi Steel
Bhagyalaxmi Steel is leading OHNS Steel Manufacturers, Suppliers, Traders and Wholesalers in Pune. We offer OHNS Steel in various forms including round bars, flats, sheets, and plates to support a wide range of industrial requirements. Known as Oil Hardening Non-Shrinking Steel, this grade is valued for its excellent hardening capability, wear resistance, and ability to maintain its shape after heat treatment.
With our focus on quality and reliability, we help manufacturers source OHNS Steel that performs effectively in punches, dies, gauges, jigs, fixtures, and cutting tools. Our goal is to provide materials that contribute to improved productivity, longer tool life, and consistent manufacturing results.
Manufacturing Process of OHNS Steel
- Melting and Refining
Alloy Preparation: Raw materials are melted in an electric arc furnace (EAF). Precise amounts of alloying elements like Manganese (approx 1.0-1.4%), Chromium (0.5%), Tungsten (0.5%), and Vanadium (0.1%) are added to the molten iron. - Secondary Refining:
The molten steel undergoes processes like ladle refining and vacuum degassing to reduce impurities (sulfur, phosphorus) and ensure a uniform chemical composition.
- Casting and Hot Rolling
Ingot or Continuous Casting: The molten steel is cast into ingots or continuously cast into blooms. - Hot Working: The steel is heated to the recrystallization temperature (usually around 1050°C to 1100°C) and hot-rolled or forged into desired shapes like flat or round bars.
- Annealing
Soft Annealing:Because air/hot-cooling hardens the steel slightly, it is annealed by heating to 750°C–780°C, followed by very slow controlled cooling in a furnace. This makes the steel softer and easier to machine for toolmakers. - Machining & Shaping (Pre-use)
In this "soft" annealed state, manufacturers or machinists shape the steel into final products like cutting tools, dies, or punches using standard machining operations. - Final Heat Treatment (The Hardening Process)
The unique "Oil Hardened" characteristic of OHNS steel is realized through this critical post-machining heat treatment phase: - Preheating (Optional): The component is slowly preheated to around 300°C–500°C to prevent thermal shock.
- Austenitizing: It is then heated uniformly to 780°C–820°C and soaked until the entire section is evenly heated.
Test Cases of OHNS Steel
As a trusted OHNS Steel Manufacturers in Pune, we serve businesses across various industries, delivering products that meet professional quality and engineering requirements.
| Sr. No. | Test Case | Description |
|---|---|---|
| 1 | Hardness Test | Evaluates hardness levels after heat treatment. |
| 2 | Tensile Strength Test | Measures the material's ability to withstand applied loads. |
| 3 | Impact Test | Assesses toughness under sudden stress conditions. |
| 4 | Chemical Composition Test | Verifies compliance with OHNS steel specifications. |
| 5 | Dimensional Inspection | Ensures accuracy and consistency in finished products. |
Features of OHNS Steel
As OHNS Steel Suppliers in Pune, we have advanced features that ensure high precision, durability, and consistent performance.
- Excellent Hardening Capability: OHNS steel responds exceptionally well to oil hardening processes. This helps achieve high hardness levels with minimal distortion.
- Good Dimensional Stability: The material experiences very little shrinkage during heat treatment. This makes it ideal for precision tooling applications.
- High Wear Resistance: OHNS steel offers reliable resistance to abrasion and surface wear. This helps extend the service life of tools and dies.
- Easy Machinability: Before hardening, the material can be machined efficiently into complex shapes and dimensions. This simplifies manufacturing processes.
- Fine Surface Finish: OHNS steel can achieve smooth and accurate finishes after machining and grinding. This is particularly beneficial for precision components.
Benefits of OHNS Steel
As OHNS Steel Traders in Pune, our products provide several benefits including consistent quality, smooth finish, and long service life.
- Improved Tool Accuracy: Its non-shrinking characteristics help maintain dimensional precision after heat treatment. This supports accurate and repeatable production.
- Extended Tool Life: The wear-resistant nature of OHNS steel helps tools remain effective for longer periods. This reduces replacement frequency.
- Consistent Manufacturing Quality: Stable material properties contribute to uniform production results. This helps manufacturers maintain quality standards.
- Lower Maintenance Costs: Durable tooling components require fewer repairs and maintenance interventions. This improves overall operational efficiency.
- Versatile Application Range: OHNS steel can be used across multiple tooling and engineering applications. This makes it a practical choice for diverse industries.
Applications of OHNS Steel
As OHNS Steel Wholesalers in Pune, our all types are used in various types of industrial sectors such as:
- Cutting Tools: OHNS steel is widely used for manufacturing cutting tools that require sharp edges and excellent wear resistance. It helps maintain cutting performance over extended production cycles.
- Punches & Dies: The material is commonly used for punches and dies operating under repetitive manufacturing conditions. Its hardness supports long-term accuracy and durability.
- Gauges: Precision gauges manufactured from OHNS steel provide reliable dimensional accuracy. This makes them suitable for inspection and measurement applications.
- Jigs & Fixtures: OHNS steel is used in jigs and fixtures where dimensional stability and strength are important. It helps improve consistency in production processes.
- Knives & Blades: AISI O1 steel is frequently selected for industrial knives and blades because of its ability to achieve and retain a sharp cutting edge.
- Blanking Dies: The material performs effectively in blanking dies used for sheet metal processing. Its wear resistance helps maintain cutting precision.
- Stamping Tools: OHNS steel is suitable for stamping tools that require durability and dimensional accuracy. This ensures dependable production performance.
- Tool Room Equipment: Many tool room components are manufactured using OHNS steel due to its machinability and hardening characteristics. It supports precision engineering operations.
- Die Making Applications: OHNS remains a preferred material for die-making applications where stability, hardness, and ease of machining are critical requirements.
- General Engineering Tools: The material is widely used for manufacturing industrial and engineering tools that require consistent performance and long service life.
Why Choose Us?
- Trusted Product Quality: We supply OHNS steel products that meet recognized industry standards and performance requirements.
- Wide Product Availability: Our inventory includes round bars, flats, sheets, plates, and customized sizes to meet diverse industrial needs.
- Industry Experience: We understand the requirements of tooling and engineering applications and help customers select suitable materials.
- Competitive Pricing: We offer quality OHNS steel products at competitive market rates without compromising on performance.
- Reliable Service: From product selection to delivery, we are committed to providing responsive support and dependable service.
Bhagyalaxmi Steel is leading OHNS Steel Manufacturers, Suppliers, Traders and Wholesalers in Pune. We believe that selecting the right tool steel is essential for achieving precision, efficiency, and long-term performance. OHNS Steel continues to be a preferred choice for tooling applications because of its excellent hardness, wear resistance, and dimensional stability.
We proudly supply quality OHNS Steel solutions that support industries involved in tool making, engineering, and manufacturing. Whether you require material for punches, dies, gauges, or cutting tools, we are committed to delivering products that help you achieve dependable and consistent results. Contact us today to discuss your OHNS Steel requirements and find the right solution for your application.
FAQ’s
OHNS stands for Oil Hardening Non-Shrinking Steel, a tool steel known for its excellent dimensional stability and hardening properties.
The full form of OHNS is Oil Hardening Non-Shrinking.
Depending on the heat treatment process, OHNS steel typically achieves a hardness range of approximately 57–62 HRC.
An OHNS punch refers to a punch tool manufactured using Oil Hardening Non-Shrinking Steel for improved wear resistance and durability.
OHNS steel is commonly used for cutting tools, punches, dies, gauges, jigs, fixtures, blanking dies, stamping tools, knives, blades, and tool room applications.
