Chuck Metals is a well-known manufacturer and supplier of Stainless Steel 347H Square Bars and Rods right here in Singapore, proudly delivering top-notch products throughout Pulau Ujong and across Southeast Asia. Stainless Steel 347H is a high-carbon, niobium-stabilized austenitic stainless steel, specifically crafted for improved creep strength and high-temperature applications. Our 347H square bars are produced in accordance with ASTM A276 and A479 standards, ensuring they boast excellent dimensional accuracy, structural integrity, and a smooth surface finish. At Chuck Metals, we offer these bars in a variety of sizes and conditions, making them perfect for industries like power generation, chemical processing, and petrochemical operations.
Typically, Stainless Steel 347H Square Bars and Rods contain 17–20% chromium, 9–13% nickel, and a higher carbon content (around 0.04–0.10%) compared to standard 347, along with niobium for carbide stabilization. This alloy provides impressive tensile strength ranging from 515 to 750 MPa, a yield strength of about 205 MPa, and outstanding resistance to creep and stress rupture at temperatures above 538°C (1000°F). It also resists intergranular corrosion, is non-magnetic, and demonstrates reliable weldability and mechanical strength even in high-temperature settings.
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.
These Stainless Steel 347H Square Bars and Rods are perfect for demanding high-temperature and high-pressure applications, such as boilers, superheaters, furnace components, and exhaust manifolds. They’re widely used in refineries, chemical and petrochemical plants, and thermal processing equipment, where resistance to thermal fatigue, oxidation, and carbide precipitation is crucial. Additionally, 347H square bars are a great fit for power generation, nuclear reactors, and aerospace industries, offering long-lasting stability and structural integrity under the stresses of cyclic thermal and mechanical conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chuck Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Singapore, Singapore
Copyright 2024 Chuck Metals. All rights reserved
