Piyush steel is the most popular supplier and producer of heavy duty Duplex Steel UNS S31803 Round Bars which is known for its high strength and toughness. These bars are highly in demanded and used in most of the demanding and critical applications. We are known for offering the superior quality of industrial bars, as we use only good quality of products for manufacturing. We also deal in all ferrous and non-ferrous types of materials that are made under the compliance of national and international standards. We also engaged in the bulk quantity manufacturing of bars to fulfill urgent requirements of our customers.
We make these bars in different designations, standards, custom dimensions, specifications, and altered dimensions. Additionally, we offer these bars in various treated surface and machining allowances for demanding applications. Duplex Steel UNS S31803 Round Bars have also some features like as sturdiness, durability, easy maintenance, high tensile strength, robust design, etc. these bars are made as per the industrial design codes and considering quality factors.
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Duplex Steel UNS S31803 Round Bars are processed from the hold or cold forming operations. These are heat treated or hot worked. These are also annealed after hot working. The cold working operations are also performed that avoids brittleness and attain desired mechanical properties. Its structure also becomes non-magnetic in nature.
Duplex Steel UNS S31803 has higher weldability. This alloy can be welded with all sort of welding operations. These bars also perform excellently in the chemical containing environments such as are chlorides, halides, sulfides, sulfuric acids, nitric acids, phosphoric acids, etc.
Duplex Steel UNS S31803 Hex Bars also offer good service to local corrosive environments. It also performs well in the halide and chloride containing environments. It has great capability to resist pitting and crevice corrosion. Moreover, in the higher temperatures, it has great stability without any distortion and rupture.
These are highly used in Intergranular corrosive environments. In addition to alloying elements, its strength got increased even in the mild reducing environments.
Duplex Steel UNS S31803 Round Bars are offered in either tempered or quenched state. These are developed to offer outstanding welding features. It is the most economical option for engineering applications, due to its higher strength, durability, and functionality.
As an ISO certified company, we are committed to providing high-quality products to our customers. We always follow strict guidelines of total quality management to attain superior quality production. To follow effectively total quality management we have created quality objectives and plans. These are followed in our production unit efficiently. The production operation is monitored by our quality professionals. The superior level of quality norms enables us to produce high-quality products.
In Piyush steel, we follow strict quality tests on each step of production. These tests are performed on phases under the globally approved standards.
• Material test
• Positive material test
• Intergranular corrosion test
• Pitting corrosion test
• Ultrasonic test
• Chemical test
• Micro test
• Macro test
• Mechanical test
• Strength test
• Buckling test
• Compression test
• Crushing test
• Thermal property analysis
• Hardness test
Test reports and documents:
• national board approval lab (NBAL) test report
• material test report
• Welding guide
• NABL test certificates
• fumigation certificates
• mill test report
• quality assurance plan
• heat treatment charts
• stamping details
To offer complete damage-free shipping we use industrial standard techniques. Duplex Steel UNS S31803 Square Bars are delivered in the form of bundles and rolled out in the thin film of plastic to prevent rusting and oxidation.
Uns S31803 is equivalent to ASTM A182 F51. This type of stainless steel has excellent corrosion resistance, high tensile strength, and good weldability. It is typically used for applications such as offshore platforms, industrial equipment, and chemical processing. The particular alloy of S31803 also offers resistance to chloride-ion stress-corrosive cracking, making it a popular choice for seawater applications.
Uns S31803 has a chemical composition of Iron (Fe) - around 70%, Chromium (Cr) - around 21-23%, Molybdenum (Mo) - around 3-5%, Nickel (Ni) - around 2-3%, and Manganese (Mn) - up to 1%. This combination of elements creates an alloy with improved strength, good corrosion resistance, and excellent resistance to chloride-ion stress-corrosive cracking.
Specification : ASTM A276, A479 / ASME SA276, A479
Dimensions : ASTM, ASME and API
Size : 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length
Form : Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc
Finish : Bright, Polish & Black
|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|
|Grades||Density (g/cm 3)||Density (lb/in 3)||Melting Point (°C)||Melting Point (°F)|
|S31803||7.805||0.285||1420 – 1465||2588 – 2669|
The full identification of the bars should be continuously marked down its whole length, including :
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