Semih Metals, located in Istanbul, Turkey, stands out as a top manufacturer and supplier of high-performance metal alloys, particularly **Invar 42 Bar and Rod**. With years of expertise in the metallurgical field, Semih Metals is dedicated to providing precision-engineered materials that meet the rigorous demands of industries like 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 Bar and Rod to clients around the globe. Thanks to advanced manufacturing techniques and stringent quality control, Semih Metals has earned a strong reputation for reliability and excellence in Invar alloy solutions.
**Invar 42 Bar and Rod** consist of roughly 41–43% nickel, with the remainder being iron, along with small amounts of carbon, manganese, and silicon. This iron-nickel alloy is particularly renowned for its remarkably low coefficient of thermal expansion. In terms of mechanical properties, Invar 42 Bar and Rod showcase tensile strengths between 450 and 700 MPa, a yield strength of about 275 MPa, and elongation rates ranging from 30% to 45%, depending on their condition and heat treatment. These characteristics make the material perfect for maintaining dimensional stability across a wide temperature range, especially in high-precision engineering settings.
| Standards : | ASTM F30, ASME SF30 |
| Dimensions : | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Wire : | Thickness starting from 0.05mm |
| Round bar size : | Diameter: 3-~800mm |
| Hex Bar size : | 2-100mm A/F |
| Flat bar size : | Thickness: 2 -100mm / Width: 10 to 500mm |
| Square bar size : | 4 to 100mm |
| Rectangular Bars Size : | 33 x 30mm to 295 x 1066mm |
| Hollow Bar : | 32mm OD x 16mm ID to 250mm OD x 200mm ID |
| Tolerance : | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Finish : | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Grade | C | Mn | Si | S | Fe | Ni | Cr | P | Mo | Cu | Mo |
| Invar 42 | 0.1 max | 0.6 max | 0.35 max | 0.025 max | Balance | 35.0 – 37.0 | 0.5 max | 0.025 max | 0.5 max | 0.5 max | 0.5 max |
| Yield Strength (0.2%Offset) | Tensile Strength | Elongation | Hardness |
| Ksi – 36 , MPa – 248 | Ksi – 71 , MPa – 490 | 40 % | 40 |
| STANDARD | WERKSTOFF NR. | UNS |
| Invar 42 | 1.3917 | K94100 |
Yes, laser welding can be used for Invar 42 bars. Its low thermal expansion properties make it suitable for precision welding, though attention is needed to manage heat input and distortion.
Yes, Invar 36 bar and rod can be welded, but it requires special care due to its low expansion properties. Proper welding techniques, such as TIG or MIG, are recommended.
Yes, specific welding consumables for Invar 36 bar and rod include Invar 36 electrodes, TIG rods, and MIG wires. These materials ensure proper fusion and minimize thermal expansion issues during welding.
You’ll find **Invar 42 Bar and Rod** utilized in various industries where it’s crucial to maintain dimensional accuracy despite temperature changes. They play a vital role in the production of electronic components, semiconductor tooling, telecommunications hardware, aerospace instrumentation, and cryogenic systems. Specific uses include glass-to-metal seals, lead frames, precision measuring devices, and components for satellites and optical systems. Thanks to their thermal stability, Invar 42 Bar and Rod are also used in composite tooling for aircraft manufacturing and in scientific instruments.
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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