Semih Metals stands out as a top-notch manufacturer and supplier located in Istanbul, Turkey, with a focus on high-performance metal alloys like Invar 42 Bar and Rod. With years of experience in the metallurgical field, Semih Metals is dedicated to providing precision-engineered materials that meet the rigorous demands of industries such as aerospace, electronics, and cryogenics. The company prides itself on its commitment to quality, innovation, and customer satisfaction, offering both standard and custom specifications of Invar 42 products to clients around the globe. Thanks to cutting-edge manufacturing techniques and strict quality control measures, Semih Metals has built a solid reputation as a reliable source for high-quality Invar 42 solutions.
Invar 42, or UNS K94100, is an iron-nickel alloy that contains about 41–43% nickel, with the remainder being iron, along with small amounts of carbon, manganese, and silicon. It’s well-known for its remarkably low coefficient of thermal expansion. On the mechanical side, Invar 42 boasts a tensile strength of roughly 450–700 MPa, a yield strength of about 275 MPa, and an elongation range of 30–45%, depending on its temper and treatment. This alloy maintains excellent dimensional stability over a broad temperature range, making it perfect for precision applications.
| Sizes | 2-100mm A/F |
|---|---|
| Tolerance | Supplier in H9, H8, H10, K12, H13K9, K10, H11, H12, K11 |
| EN24 Round bar Sizes | Diameter: 3-~800mm |
| Square bar Sizes | 4 to 100mm |
| Surface | Bright, Hot Rolled Pickled, Sand Blasting Finished, Hairline, Cold Drawn, Polished |
| Finish | Hot rolled annealed, Bright, smooth turned, Polish, Rough Turned, Cold (bright) drawn, centreless ground, Grinding, peeled, hot rolled, slit rolled edge, Centreless Ground & Black. |
| Condition | Hardened and tempered, annealed |
| Form | Round Rod, Billet, Round, Rectangle, Rod, Forging, Hex (A/F), Rings, Channel Bar, Half Round Bar, Square, I/H Bar, Ingot, Precision Ground Bar, Flat Bar, Triangle, Blocks, T Bar, Profiles, Threaded, Hollow etc. |
| Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged, Rod |
| Processing | Bar cutting to 650mm |
| Flat bar Sizes | Thickness: 2 -100mm Width: 10 to 500mm |
| Carbon | 0.36 – 0.44 |
| Manganese | 0.45 – 0.70 |
| Silicon | 0.10 – 0.35 |
| Sulfur | Max 0.040 |
| Phosphorus | Max 0.035 |
| Chromium | 1.00 – 1.40 |
| Molybdenum | 0.20 – 0.35 |
| Nickel | 1.30 – 1.70 |
| Max Stress | 850-1000 n/mm2 | |
| Yield Stress | 680 n/mm2 Min | Up to 150mm LRS |
| 654 n/mm2 Min | 150 to 250mm LRS | |
| 0.2% Proof Stress | 665 n/mm2 Min | Up to 150mm LRS |
| 635 n/mm2 Min | 150 to 250mm LRS | |
| Elongation | 13% Min | (9% if cold drawn) |
Carbon Steel EN-24 Bar is commonly used in manufacturing components requiring high strength and toughness, such as gears, shafts, axles, crankshafts, and machine parts in automotive, aerospace, and engineering applications.
Carbon Steel EN-24 Bar is typically available in finishes such as bright, polished, black, rough turned, and cold drawn, depending on the specific requirements and application.
Yes, Carbon Steel EN-24 Bar can be heat-treated. It is typically quenched and tempered to enhance its strength, hardness, and toughness, making it suitable for high-stress applications.
Invar 42 Bar and Rod are commonly utilized in industries where maintaining dimensional stability and minimizing thermal expansion are crucial. You’ll find it in electronic components, telecommunications, aerospace instrumentation, precision measurement devices, and cryogenic engineering. The alloy’s stability across varying temperatures makes it ideal for lead frames, glass-to-metal seals, and shadow masks in CRTs. It’s also employed in tooling for aerospace composite fabrication and high-precision instruments like gyroscopes and laser components. Invar 42 is particularly sought after in environments where thermal fluctuations could jeopardize structural integrity or precise alignments, ensuring long-lasting reliability and accuracy.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Semih Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Istanbul, Turkey
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