Kyaw Stainless, a prominent manufacturer and supplier located in Naypyidaw, Myanmar, is all about crafting top-notch **Stainless Steel 321H Pipes** that meet international standards. With state-of-the-art production facilities and a strong dedication to quality, Kyaw Stainless provides piping solutions that are not only durable but also resistant to corrosion and heat, making them perfect for high-pressure and high-temperature settings. Each pipe goes through strict quality checks to ensure they perform exceptionally well and last a long time. Trusted by various industries, Kyaw Stainless consistently delivers precision-engineered 321H pipes that cater to the demanding needs of clients both in Myanmar and around the globe, focusing on reliability, efficiency, and sustainability in every product.
| ASTM Specification | ASME SA 312 /ASTM A312/ TP 321H |
| EFW Pipes Sizes |
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| Wall THK | Schedule 40, Schedule 5, Schedule10, Schedule 160, Schedule 80, Schedule XXS, Schedule 80S, Schedule XS |
| Seamless Pipes Sizes |
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| Welded Pipes Sizes |
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| Forms | ERW / Round, Rectangular |
| techniques | EFW/ Welded /ERW / Seamless / Fabricated / LSAW/ CDW/ Seam-Welded / Redrawn |
| Element | SS 321H |
| Nickel | 09 To 12 |
| sulfur | 00.03 Maximum |
| Nitrogen | 00.10 |
| Chromium | 17 To 19 |
| Silicon | 00.75 Maximum |
| Magnesium | 2 Maximum |
| Carbon | 00.04 To 0.08 |
| Phosphorus | 00.045 Maximum |
| Titanium | 00.70 Maximum |
| Element | SS 321H |
| Tensile Strength | 515 |
| Yield Strength | 205 |
| Elongation | 40 |
| Rockwell | 95 |
| Brinell | 217 |
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Stainless Steel 321H Pipes are high-carbon austenitic stainless steel alloys, primarily made up of **iron, chromium (17–19%), nickel (9–12%), titanium (0.7%), and carbon (0.04–0.10%)**. This higher carbon content enhances their strength at high temperatures and improves creep resistance compared to grade 321. These pipes boast impressive mechanical properties, including a **tensile strength of about 515 MPa, yield strength of 205 MPa, and an elongation of 35%**. They also offer excellent oxidation resistance up to 900°C, along with superior weldability and formability, making them ideal for extended use in high-temperature environments.
Excellent resistance to intergranular corrosion, especially in high-temperature applications. They typically come in sizes ranging from 20 mm to 200 mm on each side, providing robust structural support and versatility for various industries.
Resistance to oxidation and corrosion, SS 321H Seamless Pipes are manufactured without welds or joints, offering uniformity and strength. They are available in 6 mm to 300 mm diameter and are suitable for high-pressure and high-temperature environments.
Good resistance to corrosion and elevated temperatures, Stainless Steel 321H ERW (Electric Resistance Welded) Pipes are produced using electric resistance welding techniques. They are available from 15 mm to 150 mm, ideal for pipelines and structural applications.
SS 321H LSAW (Longitudinal Submerged Arc Welded) Pipes resist high-temperature oxidation and corrosion. These pipes are 60 mm to 1000 mm in diameter and are commonly used in oil and gas transmission and large-diameter piping systems.
Versatile and widely used with strong resistance to scaling and corrosion. They are available in diameters ranging from 10 mm to 500 mm, making them suitable for various industrial applications, including chemical processing.
Excellent resistance to intergranular corrosion, Stainless Steel 321H Welded Pipes are produced by welding and are ideal for applications where joints and fittings are required. They typically come in sizes ranging from 15 mm to 600 mm in diameter, suitable for various structural and mechanical uses.
Stainless Steel 321H Pipes are commonly found in **petrochemical, power generation, oil and gas, and heat exchanger applications** due to their remarkable resistance to oxidation and corrosion. They are perfect for high-temperature steam lines, refinery equipment, and furnace components where strength and stability are crucial. Additionally, these pipes are utilized in **aerospace, marine, and chemical processing industries**, where they can handle thermal stress and harsh conditions. Their durability, mechanical integrity, and ability to maintain strength at elevated temperatures make them a go-to choice for critical industrial applications.
Kyaw Stainless offers test certificates, such as Mill Test Certificates (MTC) according to EN 10204 3.1, to guarantee conformity with international quality standards. The pipes are carefully packed in wooden crates, plastic wrapping, or carton boxes to avoid transit damage. With a streamlined supply chain, Kyaw Stainless guarantees timely and reliable global delivery, meeting urgent industrial needs with precision and care.
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