Semih Metals is one of the top manufacturers and suppliers in the Istanbuls, Turkey. It has gained a reputation for delivering top-notch stainless steel products to various industrial needs. The company specializes in Stainless Steel 347H Square Bars and Rods with unmatched quality, durability, and performance. We construct high-grade quality bars and rods for ultimate resistivity to heat, corrosion resistance, and tolerance of highly strained conditions for critically critical applications mainly in the space industry, oil refinery, or power plants among others. Combining our aim of precise manufactured product with reliability and time guarantee to satisfaction ensures Semih Metals stand as a trusted partner for stainless steel solutions in the Turkey and beyond.
Stainless Steel 347H Square Bars and Rods are high-performance alloys composed of chromium, 17-20%; nickel, 9-13%; columbium, and tantalum. It offers excellent resistance to corrosion and possesses superior mechanical properties such as high tensile strength of 515 MPa, yield strength of 205 MPa, and elongation of 40%, with exceptional toughness at high temperatures. Its significant benefits include intergranular corrosion resistance, oxidation resistance up to 800°C, and it is weldable. These bars and rods resist high temperatures, making them suitable for use in chemical processing, power generation, and aerospace industries, thereby offering durability, reliability, and long-term performance under demanding conditions.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A582, A276, A564, ASTM A484, 484M
Surface : hrap, hot rolled pickled or sand blasting finished, cold drawn, polished, hairline
Size : Tolerance: H8, H9, H10, H11, H12, H13K9, K10, K11, K12
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 347H | 0.04 – 0.10 | 17.0 – 19.0 | 2.00 max. | 9.0-12.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| Element | Density | Melting Range,℃ | Tensile Strength | Yield Strength | Elongation | Hardness (Brinell) |
| SS 347H | 7.96 | 1450 ℃ | 515 | 205 | 40 | 201 |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 347H | 1.4550 | S34709 |
| SQUARES | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.62 | 2.05 |
| 18 | 0.79 | 2.59 |
| 20 | 0.76 | 2.49 |
| 22 | 1.18 | 3.87 |
| 25 | 1.52 | 5.00 |
| 28 | 1.91 | 6.27 |
| 30 | 2.19 | 7.20 |
| 32 | 2.50 | 8.19 |
| 36 | 3.16 | 10.37 |
| 38 | 3.52 | 11.55 |
| 40 | 3.90 | 12.80 |
| 45 | 4.94 | 16.20 |
| 50 | 6.10 | 20.00 |
| 56 | 7.65 | 25.08 |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
Stainless Steel 347H Square Bars offer excellent high-temperature strength, resistance to intergranular corrosion, and superior weldability. They are ideal for applications in extreme environments, such as chemical processing and heat exchangers.
Yes, Stainless Steel 347H Square Bars are fully recyclable and retain their properties after recycling. This makes them an environmentally sustainable choice for various applications.
No, Stainless Steel 347H Square Bars are generally non-magnetic in their annealed condition. However, slight magnetism may develop after cold working.
347H Stainless Steel Square Bars and Rods are used in various applications where high-temperature and corrosion resistance is needed. They have excellent strength and resistance to intergranular corrosion, making them suitable for chemical processing, oil and gas, and power generation applications. They are used for heat exchangers, furnace components, and superheaters. They are also used in aerospace, petrochemical, and marine industries for structural and support components. Due to their strength and resistance to high-stress conditions, they find applications in manufacturing equipment and parts that are used under severe environmental conditions; therefore, they last long with high performance reliability in industrial operations.
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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