OHNS Round Bar

Aiman Metals stands out as a top-notch manufacturer and supplier of high-quality OHNS (Oil-Hardening Non-Shrinking) round bars, proudly based in Kuala Lumpur, Malaysia. With a strong dedication to quality and precision, Aiman Metals delivers OHNS round bars that adhere to strict industrial standards. They serve a diverse clientele across engineering, automotive, and tooling sectors, providing tailored sizes and quick delivery. Renowned for their reliability and excellence, Aiman Metals guarantees that each product offers outstanding performance and durability, making them a go-to choice for businesses in need of trustworthy tool steel solutions in Malaysia and beyond.

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OHNS Round Bars

OHNS Hex Bars

OHNS Round Bar Cold Finish

When it comes to composition and mechanical properties, OHNS round bars are primarily made up of carbon (0.90–1.00%), manganese (1.00–1.20%), chromium (0.50–0.70%), and tungsten (0.50–1.00%), along with trace amounts of silicon and vanadium. They boast impressive hardness, wear resistance, and dimensional stability during heat treatment, with typical hardness levels after oil quenching ranging from 58–62 HRC. Their tensile strength and toughness make them perfect for high-stress applications. OHNS steel shows minimal distortion during hardening, ensuring consistent mechanical properties, including good machinability in annealed conditions and exceptional edge retention when hardened.

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OHNS Round Bars Specifications

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	3mm20mm20mm~12mm100mm100mm
OHNS Steel Rectangles Size	33 x 30mm to 295 x 1066mm
OHNS High Speed Steel Flat bar size	Thickness: 2 -100mm
OHNS High Speed Steel Flat bar size	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

Chemical Compositions of OHNS Round Bar

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

OHNS Round Bars Mechanical Properties

Maximum Stress(N/mm²)	Yield Stress(N/mm²)	Elongation	Impact Strength (joule)	Hardness value (BHN)
950	465	10%	25	288

OHNS Round Bars Equivalent Grades

STANDARDS	100MnCrW4	O1	DIN 2510	AISI O1	AFNOR 90MWCV5	JIS SKS3

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OHNS Round Bars Types

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OHNS Round Bars Uses

OHNS round bars find extensive use in the production of tools and dies, thanks to their remarkable wear resistance and hardness. They are commonly used for punches, cutting tools, chisels, dies for blanking and forming, shear blades, and engravers. Their ability to maintain shape and hardness under high stress makes them ideal for both hot and cold working processes. In the automotive and aerospace sectors, OHNS bars are essential for precision components that require dimensional stability and wear resistance. Their machinability and edge retention also make them a great fit for high-performance industrial equipment

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