Are you looking for a top-quality stainless steel pipe that would meet all your needs? Look no further than the 304L stainless steel pipe, widely recognized for its excellent corrosion resistance and durability. This pipe is manufactured in compliance with ASTM A312 TP304L and ASME SA312 UNS S30403 standards, ensuring high quality and reliability.
Featuring a seamless design and welded construction, the SS 304L pipe offers reliable performance in various applications, including exhaust systems in the automotive industry. It is available in various sizes and thicknesses, with options such as SCH 10 and SCH 40 to suit different requirements.
Manufactured by reputable brands, the SS 304L pipe is made from premium-grade stainless steel, ensuring long-lasting and reliable performance. With its excellent resistance to corrosion, it is ideal for use in harsh environments and high-temperature applications.
So if you want to get your hands on the best-quality 304L stainless steel pipe at competitive prices, look no further than reputable manufactures. With their top-grade products and excellent customer service, you can be sure to get the best value for your money.
The 304L stainless steel pipe is an extremely popular choice in the global steel industry, which encompasses both seamless 304L stainless steel pipes and welded stainless steel 304L pipes. Comprising of elements such as chromium, nickel, manganese, and sulfur, the chemical composition of SS 304L makes it highly resistant to corrosion and imparts excellent mechanical properties. Furthermore, the low UNS S30403 pipe price makes it a cost-effective alternative as well. As a result, ASME SA312 UNS S30403 pipes have become the preferred material for manufacturing various pipes and connectors, ranging from oil drilling pipes and marine pipes to those used in the food processing and chemical processing industries.
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The ASTM A312, which stands for Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes, is a significant guideline for the industry. It establishes the requirements for the manufacturing and testing of stainless steel pipes that are seamless, welded, or heavily cold worked. This standard ensures that the pipes meet the necessary criteria for use in various applications.
The ASTM A312 specification covers a wide range of sizes and grades of austenitic stainless steel pipes. This includes both seamless and welded pipes, which are commonly used in industries such as oil and gas, chemical processing, and water treatment. These pipes are designed to withstand the demanding conditions of these applications while providing excellent corrosion resistance and durability.
By complying with the ASTM A312 standard, manufacturers ensure that their products possess the necessary mechanical properties, such as tensile strength, yield strength, and elongation. Additionally, the standard outlines the required chemical composition, heat treatment, and testing procedures to guarantee the quality and performance of the stainless steel pipes.
The ASTM A312 specification also covers heavily cold worked pipes, which undergo significant plastic deformation at low temperatures. These pipes are commonly used in applications that require enhanced strength and improved dimensional accuracy. The standard provides guidelines for cold working processes and the resulting mechanical properties, ensuring the pipes meet the specified requirements.
In summary, the ASTM A312 standard plays a crucial role in the production of seamless, welded, and heavily cold worked austenitic stainless steel pipes. By adhering to this specification, manufacturers can provide reliable and high-quality pipes that are suitable for a wide range of demanding applications.
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ASME B36.10 is a specification that specifically focuses on both welded and seamless wrought steel pipes designed for use in a wide range of temperature and pressure conditions. This specification covers pipes suitable for both high and low temperatures, ensuring their reliability and performance in various applications. By complying with ASME B36.10, manufacturers and users can maintain the necessary standards and quality control for these types of steel pipes, which are commonly used in industries such as oil and gas, petrochemicals, power plants, and many others. The specification serves as a guideline for the production, testing, and utilization of these pipes, providing essential information to ensure their safe and efficient operation.
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The ASME B36.19 is a specification that defines the standards for stainless steel pipes. This document outlines the requirements for the manufacture, dimensions, and materials used for stainless steel pipes. The aim of this specification is to ensure that the pipes meet the highest standards of quality, durability, and performance.
The ASME B36.19 specification is used by manufacturers, engineers, and designers to ensure that their stainless steel pipes meet the required standards. This specification covers all aspects of the manufacturing process, from the raw materials used to the finished product. It sets out the tolerances, dimensions, and testing procedures for the pipes.
Stainless steel pipes are widely used in many different industries, from oil and gas to pharmaceuticals and food processing. They are valued for their strength, durability, and resistance to corrosion. The ASME B36.19 specification ensures that these pipes are manufactured to the highest standards, making them suitable for use in even the most demanding applications.
Overall, the ASME B36.19 specification plays a crucial role in ensuring the safety, reliability, and performance of stainless steel pipes. By following this specification, manufacturers can produce pipes that meet the highest industry standards, providing peace of mind to engineers, designers, and end-users alike.

ASTM A312 TP304L Stainless Steel Pipe Specifications
| Specifications | ASTM A 312/ASME SA 312 |
| SS 304L Pipes | 1/2″ NB – 16″ NB |
| ERW 304L Pipes | 1/2″ NB – 24″ NB |
| EFW 304L Pipes | 6″ NB – 100″ NB |
| Size | 1/8″NB TO 30″NB IN |
| Schedule | :SCH5、SCH10、SCH20、SCH30、SCH40、STD、SCH60、SCH80、XS、SCH120、SCH140、SCH160、XXS。 |
| Type | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| Form | Our range of pipes includes round pipes, custom pipes, square pipes, rectangular pipes, "U" shape pipes, and hydraulic pipes. These pipes cater to various industrial needs and can be customized according to specific requirements. Whether you need a round pipe for structural applications, a custom pipe for unique projects, or a square or rectangular pipe for specific dimensions, we have got you covered. Our "U" shaped pipes are designed for specialized purposes, offering versatility and efficiency. Additionally, we offer high-quality hydraulic pipes that are designed to withstand high pressure and deliver optimal performance. Trust us for all your pipe needs, as we provide reliable solutions with a wide range of options. |
| Length | Single Random, Double Random & Cut Length. |
As one of the leading SS 304L pipe manufacturers, HT PIPE strives to provide top-notch stainless steel pipes that meet ASTM A312 and ASME SA312 material standards. Our commitment to producing high-quality stainless steel pipes is second to none. We offer a wide range of stainless steel seamless pipes and welded pipes with varying wall thicknesses ranging from SCH5 to SCHXXS. Additionally, we provide customized prefabricated welding and cutting services to meet the unique needs of our customers.
At HT PIPE, we understand the importance of delivering high-quality products to our customers. That's why we use only the finest materials and manufacturing processes to produce our stainless steel pipes. With our expertise in the industry, we guarantee that our stainless steel pipes meet the highest standards of quality and durability.
Whether you need seamless pipes or welded pipes, HT PIPE has you covered. Our pipes are reliable and designed to withstand even the most challenging environmental conditions. We also offer custom-fabricated welding and cutting services to help you get the exact product you need.
So if you're looking for a dependable and trustworthy stainless steel pipe manufacturer, look no further than HT PIPE. We are committed to providing you with the highest quality products and services to meet all your needs.
The main constituents of both 304 and 304L stainless steel pipes contain 18% chromium (Cr) and 8% nickel (Ni). However, the difference between them lies in the fact that 304L stainless steel is a low-carbon version of 304 steel. In general, the ASME SA312 UNS S30403 pipes exhibit similar corrosion resistance as the 304 stainless steel pipes. However, post-welding or stress relief, the DIN 1.4306 stainless steel pipes exhibit exceptional resistance to intergranular corrosion. 304L stainless steel pipes can be welded and processed without heat treatment and retain good corrosion resistance. These pipes exhibit excellent high-temperature strength and oxidation resistance and are ideal for outdoor open-air machines in various industries such as chemical, coal, petroleum, and others that require high resistance to intergranular corrosion. Additionally, they are used in heat-resistant parts of building materials and parts that are challenging to heat treat. With a service temperature range of 196°C to 800°C, the low thermal expansion coefficient of these round pipes makes them versatile and adaptable to various application environments.
Stainless Steel 304L Pipes Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | AFNOR | EN |
| SS 304L | 1.4306 / 1.4307 | S30403 | SUS 304L | 3304S11 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 |
Chemical Composition of ASME SA312 UNS S30403 Pipes
| Element | C | Mn | Si | P | S | Cr | Ni |
| SS 304L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 – 20 | 8 – 13 |
DIN1.4306 Stainless Steel Pipes Mechanical Properties
| Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304L | 515 | 35 | 205 | 92 | 201 |
304L Stainless Steel Pipes Physical Properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 304L | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Application of ASTM A312 TP304L Stainless Steel Pipe
Stainless steel SUS 304L pipe is in compliance with ASTM A312/ASME SA312 standard, ASTM A312/ASME SA312 standard specification is suitable for seamless, welded, and heavy cold-worked austenitic stainless steel pipe. SS 304L SCH 10 pipe is widely used in various industries due to its excellent corrosion resistance, high-temperature resistance, and good mechanical properties. In the oil and gas industry, SS 304L SCH 40 pipe is widely used in production and delivery pipelines. It has high corrosion resistance and excellent stability in high-temperature and high-pressure environments. In the chemical industry, 304L stainless steel seamless pipe is used to make acid, alkali, salt, and chemical reactors. In the food processing industry, 304L stainless steel pipes are used to produce steam pipes, filters, and delivery pipes.
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