A leading manufacturer and supplier in Midland, UK, Marcus Metals provides high-quality industrial materials to its clients’ diverse needs. Being a leader in the production and supply of various metal products, Marcus Metals is a reliable source for industries and institutions across the globe. Among those, the premium product that distinguishes itself from others is the OHNS (Oil Hardened Non-Shrinking) Round Bar. OHNS round bar is in great demand by tooling and die making units and machinery people due to high hardness, dimensional stability, and wear resistance. Marcus Metals produce every round bar to the most stringent standards.
OHNS is the abbreviation for Oil Hardened Non-Shrinking. OHNS round bars are an alloy of high-carbon steel for tool making and heavy-duty applications. It generally contains the following elements in its composition: Carbon 0.90-1.05%, Manganese 0.30-0.60%, Chromium 0.90-1.20%, Vanadium 0.10-0.15%, with traces of Silicon, Sulfur, and Phosphorus. The typical mechanical properties include hardness up to 58 to 62 HRC after the heat treatment, good wear resistance, and toughness. It offers excellent dimensional stability after hardening and is suitable for making tools, dies, and molds subjected to heavy loads. Its tensile strength generally ranges from 850 to 1100 MPa.
| 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.
Oil Hardened Non-Shrinking (OHNS) round bars are utilized for tool as well as die manufacturing. With enhanced hardness, wear resistance, and resistance to high-pressure conditions, OHNS round bars are ideal for making punches, dies, molds, mechanical parts, etc., that require excellent strength and durability. Some of them are used in the manufacturing process of press tools and are also used in the construction of cutting tools and forming tools. The OHNS round bars are most prized in automobile, aerospace, and construction sectors due to its excellent ability to resist heavy stresses and prolonged use with no diminution of accuracy and performance.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Marcus Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Midland, UK
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