George Metals, a prominent manufacturer and supplier located in Houston, USA, is all about high-quality Duplex Steel Hollow Bars. With years of experience under their belt and a solid reputation in the metal industry, they deliver durable, corrosion-resistant hollow bars that adhere to strict international standards. Renowned for their precision engineering and dependable delivery, George Metals serves a diverse array of industrial needs. Their Duplex Steel Hollow Bars are a go-to choice for clients in the oil and gas, petrochemical, marine, and construction sectors, thanks to their impressive strength, longevity, and exceptional resistance to tough environments and challenging conditions.
These Duplex Steel Hollow Bars are primarily made from a blend of austenitic and ferritic stainless steel, featuring a well-balanced mix of chromium (20–25%), nickel (5–8%), molybdenum (2–4%), and nitrogen. This unique composition boosts their resistance to pitting, crevice corrosion, and stress corrosion cracking. Typically, these bars exhibit high mechanical strength, with a yield strength ranging from about 450–550 MPa, along with excellent fatigue resistance. Their dual-phase structure enhances weldability and toughness, making them perfect for demanding engineering environments where both strength and corrosion resistance are crucial.
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 : Hollow
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 % |
Yes, Duplex Steel Hollow Bars can be recycled after use. Their high metal content makes them suitable for reuse in various industrial processes, promoting sustainability and resource efficiency.
Yes, Duplex Steel Hollow Bars are suitable for cryogenic applications due to their excellent toughness, strength, and resistance to brittle fracture at extremely low temperatures.
Yes, Duplex Steel Hollow Bars can be used for underground applications due to their high corrosion resistance, strength, and durability, even in harsh and moisture-prone environments.
Duplex Steel Hollow Bars find their place in industries where strength and corrosion resistance are non-negotiable. In the oil and gas sector, they’re essential for offshore platforms, subsea equipment, and pipelines, thanks to their durability in saltwater conditions. Chemical and petrochemical facilities rely on them for heat exchangers, pressure vessels, and reactors. They also play a vital role in marine applications, structural components, and high-performance machinery. With their corrosion resistance and robust mechanical properties, they’re ideal for bridge construction, mechanical shafts, and other heavy-duty applications that face aggressive and high-pressure environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
George Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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