Aung Metals, based in Naypyidaw, Myanmar, has built a solid reputation as a reliable manufacturer and supplier of top-notch stainless steel products, with a particular focus on Duplex Steel Rectangular Bars. Known for their precision engineering and high-quality materials, Aung Metals provides durable, corrosion-resistant solutions that adhere to international standards. These Duplex Steel Rectangular Bars cleverly blend the advantages of both ferritic and austenitic stainless steels, delivering outstanding mechanical strength, toughness, and impressive resistance to pitting and stress corrosion. Committed to ensuring customer satisfaction, reliability, and prompt delivery, Aung Metals caters to essential industries like oil and gas, marine, construction, and chemical processing throughout Myanmar and beyond.
The composition of Duplex Steel Rectangular Bars typically includes around 22% chromium, 5% nickel, and 3% molybdenum, along with small amounts of nitrogen, manganese, and silicon. This well-balanced mix creates a dual-phase microstructure of ferrite and austenite, which guarantees exceptional corrosion resistance and high strength. These bars boast a yield strength ranging from 450 to 550 MPa and a tensile strength between 620 and 850 MPa, with a hardness level of about 280 to 330 HB. They also provide excellent toughness, fatigue resistance, and dimensional stability, making them perfect for applications that require durability in extreme conditions.
Standards : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 10 mm To 100 mm Dia in
Length : 100 mm TO 6000 mm Length.
Specifications : ASTM A276, A479 / ASME SA276, SA479
Form : Rectangular
Finish : Bright, Polish & Black
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| S31803 / S32205 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Duplex Steel Rectangular Bars can withstand moderate to high temperatures, but their performance may degrade at temperatures above 300°C (572°F). For extreme heat, other alloys like austenitic stainless steel are preferred.
Yes, Duplex Steel Rectangular Bar are highly recyclable. Their durable composition allows them to be melted down and repurposed in various applications without significant loss of material properties.
Duplex Steel Rectangular Bars have excellent natural corrosion resistance due to their alloy composition. However, in highly aggressive environments, additional coatings or treatments may be recommended for enhanced protection.
Duplex Steel Rectangular Bars find their place in industries that demand both high strength and corrosion resistance. Common applications include structural frameworks, support beams, chemical processing equipment, pressure vessels, and marine components. These bars excel in environments that contain chlorides and acids, effectively resisting pitting, crevice corrosion, and stress corrosion cracking. They’re also utilized in oil and gas pipelines, desalination plants, and offshore platforms. With their long-lasting performance, reduced maintenance needs, and cost efficiency, Duplex Steel Rectangular Bars are a go-to choice for challenging industrial settings.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Naypyidaw, Myanmar
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