Semih Metals, located in Istanbul, Turkey, stands out as a top manufacturer and supplier of high-quality Monel Flat Bars. With decades of experience in the metal industry, this company is all about delivering precision-engineered products that meet international standards. Semih Metals takes pride in its cutting-edge production methods, rigorous quality control, and unwavering commitment to customer satisfaction. Their Monel Flat Bars are crafted to excel in tough industrial settings, boasting exceptional corrosion resistance, strength, and durability. Catering to a wide range of sectors, Semih Metals guarantees a reliable and consistent supply, along with customized solutions tailored to the unique needs of each project.
Monel Flat Bars are primarily made up of nickel (up to 67%) and copper (28–34%), along with trace amounts of iron, manganese, carbon, and silicon. This alloy is celebrated for its outstanding corrosion resistance in both marine and chemical environments. On the mechanical side, Monel Flat Bars showcase high tensile strength, good toughness, and moderate hardness. They remain stable across a broad temperature range and resist stress corrosion cracking, making them perfect for applications where strength and corrosion resistance are essential. Their non-magnetic properties and ability to endure extreme conditions further boost their industrial usefulness.
Dimensions : ASTM, ASME, API.
Length : 2 meters – 7 meters ( 8 feet to 24 feet)
Size Range : 38×10 mm to 150×25 mm
Finish : Bright, Black, Polish
Form : Flat Bar
Condition : Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished
Other Services : Machining (CNC), Centreless Grinding (CG), Heat Treatment, Anneling, Pickling, Polish, Rolling, Forging, Cutting, Bending, Minor Fabrication
Flat Bars End Finish : Sheared / Bansaw Cut / Hot- Cut With Grinding/ Water Jet Cutting.
| Element | Max | Min |
| Ni | – | 63.0 |
| Fe | 1.0 – 2.5 | – |
| C | 0.3 | – |
| Mn | 2.0 | – |
| Si | 0.5 | – |
| Cu | 28.0 – 34.0 | – |
| Al | 0.50 | – |
| S | 0.02 | – |
| Element | Monel |
| Density | 8.8 g/cm3 |
| Melting Point | 1350 °C (2460 °F) |
| Tensile Strength | Psi – 80,000 , MPa – 550 |
| Yield Strength (0.2%Offset) | Psi – 35,000 , MPa – 240 |
| Elongation | 40 % |
Yes, we provide bars and rods in standard and customized dimensions and polishes to meet your specific project requirements. For more details mail us on sales@semihmetal.com
Yes, Monel Flat Bars offer excellent resistance to seawater corrosion, making them ideal for marine applications, including shipbuilding, offshore platforms, and seawater equipment.
Yes, Monel Flat Bars are highly resistant to many acidic environments, making them suitable for use in chemical processing, reactors, and other industries where exposure to acids is common.
Monel Flat Bars are widely utilized in industries that require high-performance materials. They’re commonly found in marine engineering for seawater piping, pump shafts, and valve components, thanks to their remarkable resistance to corrosion and biofouling. In the chemical and petrochemical fields, they play a vital role in heat exchangers, pressure vessels, and reaction tanks that face acidic or alkaline conditions. Moreover, Monel Flat Bars are also used in aerospace, desalination plants, and the manufacturing of saltwater equipment. Their durability, strength, and resistance to oxidation make them ideal for critical components in harsh environments, ensuring longevity and reliability.






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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