Anucha Metals, a reputable manufacturer and supplier located in Bangkok, Thailand, is dedicated to providing top-notch OHNS (Oil Hardening Non-Shrinking) Round Bars tailored to meet a variety of industrial needs. Renowned for their precision engineering, durability, and reliability, these round bars are crafted to international standards, making them perfect for the tool and die-making sectors. With a solid reputation for delivering high-quality steel products, Anucha Metals guarantees that each OHNS Round Bar boasts exceptional toughness, wear resistance, and machinability, ensuring dependable performance across applications in automotive, mechanical, and general engineering fields.
The OHNS Round Bar is primarily made up of carbon, chromium, manganese, and tungsten, which contribute to its remarkable strength and toughness. The inclusion of chromium boosts hardenability and wear resistance, while manganese enhances machinability. This alloy maintains excellent dimensional stability during heat treatment, making it a go-to choice for precision tools. On a mechanical level, OHNS bars exhibit high tensile strength, impressive impact resistance, and good hardness retention. Their perfect blend of machinability and durability makes them ideal for manufacturing tools, dies, punches, and industrial components that require consistent and long-lasting performance.
| Grade | OHNS Round Bar |
|---|---|
| Specification | aaaaaaaaaaaaa |
| OHNS Square bar size | 4 to 100mm |
| OHNS Steel Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| OHNS High Speed Steel Hex Bar size | 2-100mm A/F |
| OHNS Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| OHNS Steel Rectangles Size | 33 x 30mm to 295 x 1066mm |
| OHNS High Speed Steel Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| OHNS Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| OHNS Steel Section | 3.0 to 12.0mm thickness |
| OHNS High Speed Steel Round bar size | Diameter: 3-~800mm |
| OHNS Billet Size | 1/2″ to 495mm Diameter |
| OHNS Steel Round Bar Standard Dimensions | Diameter / Height: |
| OHNS Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| OHNS Steel Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| OHNS High Speed Steel Technique | OHNS Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| OHNS Condition | Hardened & tempered, annealed |
| Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Form | OHNS Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square Bar, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| Processing | Bar cutting to 650mm |
| Our OHNS Round bar conforms to NACE MR0175/ISO 15156 | |
| C | Si | Mn | P | S | Cr | W |
| 0.85-1.00 | 0.15-0.35 | 1.00-1.20 | 0.030max | 0.030max | 0.50-0.70 | 0.50-0.70 |
| Maximum Stress(N/mm²) | Yield Stress(N/mm²) | Elongation | Impact Strength (joule) | Hardness value (BHN) |
| 950 | 465 | 10% | 25 | 288 |
| STANDARDS | 100MnCrW4 | O1 | DIN 2510 | AISI O1 | AFNOR 90MWCV5 | JIS SKS3 |
OHNS (Oil Hardened Non-Shrinking) round bars are sized based on their diameter, typically ranging from 6 mm to 300 mm, with standard lengths ranging from 3 meters to 6 meters.
OHNS (Oil Hardened Non-Shrinking) rods are available in different grades, such as OHNS 1, OHNS 2, and OHNS 3, varying in hardness, toughness, and application suitability for manufacturing and toolmaking.
Yes, laser welding can be used for OHNS (Oil Hardened Non-Shrinking) bar, as it offers precision, minimal heat input, and controlled weld quality, making it suitable for hardenable tool steels.
OHNS Round Bars are extensively utilized in industries that demand durable and precise materials for tool-making. Their stability during heat treatment makes them perfect for crafting cutting tools, punches, dies, and gauges. In the automotive industry, they are essential for producing components that require both wear resistance and strength. Additionally, they play a crucial role in mechanical engineering for jigs, fixtures, and forming tools. Thanks to their outstanding toughness and machinability, OHNS Round Bars are trusted in tool rooms, workshops, and manufacturing environments where precision and reliability are vital for successful operations.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Anucha Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Bangkok, Thailand
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