Stainless Steel 310 pipe, otherwise referred to as 2520 stainless steel pipe in China, is an austenitic stainless steel grade with high chromium (24–26%) and high nickel content (19–22%) for excellent oxidation resistance up to 2000°F. It is one of the grades of stainless steel seamless pipes.
ASTM A312 310 Stainless Steel Seamless Pipe Manufacturer in China
We, Zhejiang Xintongda Special Steel, are a leading manufacturer in China and a global supplier of Stainless Steel 310 seamless pipe. This pipe is an austenitic stainless steel grade containing high chromium and high nickel content. Stainless Steel 310 pipe is also known as 2520 stainless steel pipe in China as the numbers '25' and '20' directly represent its key chemical composition (approximately 25% Chromium and 20% Nickel). We manufacture this pipe in compliance with the ASTM A312 standard. This pipe offers excellent resistance to oxidation up to 2000°F because of its composition. It maintains excellent toughness to -450°F and low magnetic permeability, making it a preferred choice for carburising and reducing environments. The 310 Stainless Steel pipe is a preferred choice for furnaces, heat exchangers, and chemical processing. We are ISO Certified and have an annual supply capacity of 25,000 tons. We ensure stock orders ship within a week. For the most competitive pricing, contact us directly to buy high-quality UNS S31000 pipe.
Our pipes meet the following specifications:
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Standard
ASTM A312
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OD Range
6-1016 mm
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Thickness
1-65 mm
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Length
≤ 18 m
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Technical Data
Technical Data
Stages involved in making SS 310 Seamless Pipe
Being the largest 310 stainless steel pipe manufacturer, we make this pipe by heating solid steel billets and piercing them to create a hollow shell. We then use cold drawing or cold rolling to achieve the exact dimensions and smooth finish required for the ASTM A312 TP310 Seamless Pipe. Finally, the pipes are annealed and pickled to ensure maximum corrosion resistance. Refer to this page to learn in detail about our manufacturing process.
What are the Characteristics of Alloy 310 Pipe?
310 SS pipe has 5 main features. These include corrosion resistance, high temperature, fabrication, heat resistance and weldability.
- Corrosion Resistance: 310 SS pipe has high chromium content, which forms a protective oxide layer that makes it better at resisting oxidation and scaling at high temperatures. This is one of TP310 pipe’s defining features.
- High Temperature: This SS 310 seamless pipe stays strong and retains creep resistance at high temperatures. Even when it is exposed to continuous heat up to 2000°F, it stays structurally sound and doesn't scale.
- Fabrication: 310 stainless pipe is easily shaped using standard commercial procedures, though it hardens more quickly than carbon steel. Its toughness requires powerful equipment, but it results in a very durable finished product.
- Heat Resistance: The SS 310 pipe offers excellent resistance to oxidation and carburisation in high-heat cycles. This makes it a dependable choice for thermal processing equipment that faces frequent temperature changes.
- Weldability: The pipe is generally easy to weld using most standard fusion and resistance methods. This ensures the joints remain strong under heavy industrial pressure.
What are the Global Grade Equivalents for 310 Stainless Steel?
310 stainless steel is commonly known as UNS S31000. Some of the global equivalents of 310 SS include AISI 310, Werkstoff Nr. 1.4845, and Japanese JIS SUS310.
| GRADE | UNS | GB | JIS | ISO | DIN/EN | GOST | |
| ISC | NEW | ||||||
| 310 | S31000 | S31020 | 20Cr25Ni20 | SUS310 | X15CrNi25-21 | 1.4845 | 20X25H20C2 |
100% Certified Testing & Documentation
- EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- Raw Materials Certificate
- 100% PMI
- Heat Treatment Charts
- Third-Party Inspection Report
- Surface roughness and size measurement
- Manufacturer Test Certificate (Impact Testing, Flattening, Flare, Bend, Hardness, Intergranular, Pitting Corrosion, Grain size, ET, UT, HT)
- Laboratory Test Certificate from the Government-Approved Lab
Typical Industries & Applications for Stainless Steel 310 Seamless Pipe
The comprehensive list of applications includes the following 9 industries, each explained in detail below:
Cryogenic Components
This pipe maintains incredible toughness and low magnetic permeability at extremely low temperatures. It is used in liquid nitrogen storage and other deep-freeze laboratory equipment.
Food Processing
The 310 pipe is used in high-heat food machinery because it doesn't contaminate products. Its smooth surface and corrosion resistance make it easy to sanitise for food safety.
Furnaces
In industrial furnaces, this pipe serves as burners, doors, and fans that must withstand direct flames. It provides the structural integrity needed to operate safely at very high temperatures.
Fluidised Bed Furnaces
These are enclosed heating elements used inside furnaces to apply heat without direct flame contact with the treated product. The pipe’s superior high-temperature strength and oxidation resistance enable it to radiate intense heat reliably for long periods.
Power Generation
In power plants this pipe functions as tube hangers and pulverised coal burners. It is chosen because it does not fail under the intense heat and pressure of electricity production.
Sintering/Cement Plants
The SS 310 seamless pipes act as a burner shield and discharging systems in cement kilns. It withstands the harsh, dusty, and high-heat environments required to process raw minerals into cement.
Thermal Processing
This pipe is used for annealing covers and retorts which protect metal parts during heat treatment cycles. It keeps the air inside the chamber stable and keeps it from oxidising from the outside.
Ore Processing/Steel Plants
The pipe is used in smelters and continuous casting equipment to move molten materials or hot gases. It handles the extreme thermal shock faced in heavy metal melting operations.
Petroleum Refining
In refineries SS 310 seamless pipe is used for catalytic recovery systems and flare tips. It resists the sulfur-rich and high-heat gases produced during the crude oil distillation process.
Heat Exchangers & Boilers
The pipe moves heat between fluids quickly and doesn't corrode when it comes into contact with boiling water and steam. Its durability ensures that boiler systems can run for years without leaking.
Frequently Asked Questions
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What is a Stainless Steel 310 pipe?
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Difference between SS 310 and 310S pipe?The difference between SS 310 and 310S pipes is their carbon content. 310S pipes have a maximum of 0.08% carbon, while 310 pipes have 0.25%. Lower carbon in SS 310S pipe improves weldability and resistance to intergranular corrosion. 310 provides higher strength for demanding high-temperature applications.
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What standards and certifications should 310 stainless steel seamless pipe meet?Alloy 310 pipe should meet ASTM A312 or ASME SA312 standards along with various other international specifications. Certifications like EN 10204 3.1 mill test reports guarantee quality for petrochemical and furnace applications.
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How does stainless steel 310 pipe compare to 304 or 316 grades?310 has better resistance to oxidation at high temperatures, up to 2000°F. This is because of its higher chromium and nickel content. It performs better than 304, which can only handle moderate heat, and 316, which can handle chloride corrosion better from molybdenum. UNS S31000 pipe suits furnaces over 304/316's general or marine uses.
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Can I get custom sizes or thicknesses for 310 stainless steel pipes?Yes, at XTD, we provide custom sizes or thicknesses for 310 stainless steel pipes from 6-1016 mm OD and 1-65 mm wall thickness. We provide custom pipes for specific applications. Contact us today to buy high-performance SS 310 pipes.