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** are made up 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 boast 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.
| Dimensions | BS, DIN, EN, AISI, JIS, ASME, ASTM |
|---|---|
| Size of Round Bars | Thickness: 2 milimeter-100 milimeter |
| Surface | Bright, Hot Rolled Pickled, Hairline, Cold Drawn, Sand Blasting Finished, Polished |
| Processing | cutting to 650 milimeter |
| Tolerance | H9, K9, H8, H12, K12, H11, H13, K10, K11, H10, or as per need |
| Finish | centreless ground, Cold (bright) drawn, smooth turned, hot rolled, slit rolled edge, peeled, Rough Turned, hot rolled annealed, Polish, Bright, Centreless Ground, Grinding & Black |
| Method | Cold Drawn, Hot Rolled, Cold Rolled Rod, Forged Round Bars |
| Condition | annealed, Hardened & tempered |
| Density | g/cm3 | 7.94 | |
|---|---|---|---|
| lb/in.3 | 0.287 | ||
| Melting Range | °F | 2475 – 2525 | |
| °C | 1357 – 1385 | ||
| Condition & Size | Tensile Strength | Yield Strength (0.2% Offset) | Elongation | Reduction of Area | Hardness |
|---|---|---|---|---|---|
| MPa, min | MPa, min | %, min | %, min | Rockwell, max | |
| Hot worked, as-hot-worked | 550 | 240 | 25 | … | … |
| Cold-worked and hot-worked, annealed | 515 | 205 | 30 | … | … |
| US Bar | Metric | Japanese | Canadian/ASTM | ||||
|---|---|---|---|---|---|---|---|
| Diam. (Inch) | Bar Size | Diam. (mm) | Bar Size | Diameter (mm) | Bar Size | Diameter (mm2) | Bar Size |
| 0.250 | #2 | 5 | 5 | 6 | 6 | 100 | 10M |
| 0.375 | #3 | 5.5 | 5.5 | 10 | 10 | 200 | 15M |
| 0.500 | #4 | 6 | 6 | 13 | 13 | 300 | 20M |
| 0.625 | #5 | 7 | 7 | 16 | 16 | 500 | 25M |
| 0.750 | #6 | 8 | 8 | 19 | 19 | 700 | 30M |
| 0.875 | #7 | 9 | 9 | 22 | 22 | 1000 | 35M |
| 1.000 | #8 | 10 | 10 | 25 | 25 | 1500 | 45M |
| 1.125 | #9 | 11 | 11 | 29 | 29 | 2500 | 55M |
| 1.250 | #10 | 12 | 12 | 32 | 32 | ||
| 1.375 | #11 | 14 | 14 | 35 | 35 | ||
| 1.500 | #12 | 16 | 16 | 38 | 38 | ||
| 1.625 | #13 | 18 | 18 | 41 | 41 | ||
| 1.750 | #14 | 20 | 20 | 44 | 44 | ||
| 1.875 | #15 | 22 | 22 | 48 | 48 | ||
| 2.000 | #16 | 25 | 25 | 51 | 51 | ||
| 2.250 | #18 | 28 | 28 | 57 | 57 | ||
| 32 | 32 | ||||||
| 36 | 36 | ||||||
| 40 | 40 | ||||||
| 44 | 44 | ||||||
| 50 | 50 | ||||||
| Size | kilogram / Meter | kilogram / Foot | Size | kilogram / Meter | kilogram / Foot | Size | kilogram / Meter | kilogram / Foot |
|---|---|---|---|---|---|---|---|---|
| 1/8″ | 0.062 | 0.019 | 22mm | 2.979 | 0.908 | 3-1/4″ | 41.996 | 12.800 |
| 3mm | 0.055 | 0.017 | 20mm | 2.470 | 0.753 | 3″ | 35.762 | 10.900 |
| 4mm | 0.098 | 0.030 | 24mm | 3.543 | 1.080 | 3-3/4″ | 55.780 | 17.001 |
| 5/32″ | 0.095 | 0.029 | 7/8″ | 3.038 | 0.926 | 3-1/2″ | 48.772 | 14.850 |
| 5mm | 0.154 | 0.047 | 1″ | 3.970 | 1.210 | 4-1/4″ | 72.249 | 21.908 |
| 3/16″ | 0.141 | 0.043 | 25mm | 3.871 | 1.180 | 4″ | 63.340 | 19.306 |
| 6mm | 0.223 | 0.068 | 27mm | 4.490 | 1.368 | 4-3/4″ | 90.249 | 27.366 |
| 7/32″ | 0.190 | 0.058 | 26mm | 4.170 | 1.271 | 4-1/2″ | 80.340 | 24.4487 |
| 7mm | 0.298 | 0.091 | 30mm | 5.548 | 1.691 | 5-1/2″ | 121.000 | 36.690 |
| 1/4″ | 0.249 | 0.076 | 1-1/8″ | 5.033 | 1.534 | 5″ | 99.940 | 30.461 |
| 8mm | 0.398 | 0.120 | 32mm | 6.314 | 1.894 | 6-1/2″ | 167.630 | 51.093 |
| 5/16″ | 0.387 | 0.118 | 1-1/4″ | 6.349 | 1.924 | 6″ | 143.900 | 43.860 |
| 3/8″ | 0.557 | 0.170 | 35mm | 7.553 | 2.390 | 7-1/2″ | 225.000 | 68.226 |
| 9mm | 0.498 | 0.152 | 1-3/8″ | 7.550 | 2.303 | 7″ | 196.000 | 59.432 |
| 11mm | 0.748 | 0.228 | 38mm | 8.903 | 2.792 | 10″ | 397.140 | 121.048 |
| 10mm | 0.620 | 0.189 | 36mm | 7.999 | 2.438 | 8″ | 254.55 | 77.586 |
| 12mm | 0.889 | 0.271 | 40mm | 9.872 | 3.009 | |||
| 7/16″ | 0.761 | 0.232 | 1-1/2″ | 8.951 | 2.715 | |||
| 13mm | 1.043 | 0.318 | 1-3/4″ | 12.179 | 3.712 | |||
| 1/2″ | 0.994 | 0.303 | 1-5/8″ | 10.449 | 3.200 | |||
| 9/16″ | 1.256 | 0.383 | 1-7/8″ | 13.977 | 4.260 | |||
| 14mm | 1.207 | 0.368 | 45mm | 12.555 | 3.807 | |||
| 5/8″ | 1.551 | 0.473 | 50mm | 15.414 | 4.698 | |||
| 15mm | 1.391 | 0.424 | 48mm | 14.205 | 4.330 | |||
| 17mm | 1.791 | 0.543 | 2-1/8″ | 17.963 | 5.475 | |||
| 16mm | 1.578 | 0.481 | 2″ | 15.906 | 4.848 | |||
| 18mm | 2.001 | 0.610 | 60mm | 22.205 | 6.768 | |||
| 11/16″ | 1.880 | 0.573 | 2-1/4″ | 20.128 | 6.135 | |||
| 3/4″ | 2.237 | 0.682 | 2-3/8″ | 22.435 | 6.838 | |||
| 2-1/2″ | 24.856 | 7.576 | ||||||
| 2-5/8″ | 27.409 | 8.354 | ||||||
| 2-3/4″ | 30.083 | 9.169 | – | – | – |
Incoloy bright bars offer excellent corrosion resistance, high-temperature strength, durability, oxidation resistance, and versatility in extreme environments.
Incoloy bright bars generally have excellent corrosion resistance due to their alloy composition, reducing the need for additional protective coatings. However, in highly aggressive environments, extra coatings or surface treatments may be applied for enhanced protection.
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
Copyright 2024 Semih Metals. All rights reserved
