High Corrosion Resistance · Good Strength · Reliable for Piping Systems | Suitable for Oil, Chemical & Food Applications
Manufacturing Process
TP304 stainless steel pipes, with their excellent corrosion resistance, high tensile strength, and durability, are widely used in chemical, petrochemical, and various industrial applications. Our pipes comply with ASTM A312 and ASME SA312 standards, ensuring superior quality and reliable performance in projects with demanding requirements.
ASTM A312 / ASME SA312 TP304 stainless steel pipes are among the most widely used austenitic stainless steel pipe products, primarily employed for general corrosion-resistant and high-temperature service. Our TP304 stainless steel pipes are manufactured strictly according to ASTM A312/A312M-25 and ASME SA312 specifications, offering excellent corrosion resistance, superior mechanical properties, and outstanding weldability and formability.
Our ASTM A312 / ASME SA312 TP304 stainless steel pipes fully comply with the following international industrial standards:
| Specification | Range / Details |
| Outer Diameter (OD) | 6.0 mm – 426 mm |
| Wall Thickness (WT) | 0.5 mm – 13 mm |
| Length | Customizable, up to client requirements |
| Surface Finish | Pickled, Annealed, Polished |
| Material Standard | ASTM A312 / ASME SA312 |
| Typical Grades | TP304 |
High Strength and Durability
TP304 pipes maintain structural integrity under high-temperature and high-pressure conditions, ensuring reliable performance in harsh industrial environments. The products are available in both seamless and welded options, providing great flexibility for a wide range of applications.
Excellent Corrosion Resistance
TP304 pipes are designed to resist atmospheric corrosion, freshwater, mild chemicals, and most organic acids, making them an ideal choice for long-term use in outdoor and corrosive environments.
Outstanding Temperature Performance
Whether in extremely low temperatures or high temperatures up to 870℃, these pipes maintain stable performance, making them especially suitable for heat exchangers, boilers, and low-temperature piping systems.
Superior Formability and Weldability
TP304 pipes are easy to bend, flare, flatten, and process in other forms without cracking; their excellent weldability and machinability perfectly accommodate various complex industrial design requirements.
Hygienic and Non-Toxic
The pipe surface is smooth and clean, with no harmful metal leaching, fully complying with the hygiene standards established by the food, beverage, and pharmaceutical industries.
Full Traceability and Consistent Quality
Each pipe is clearly marked with heat number, material grade, applicable standards, and dimensions, enabling complete traceability from raw material to finished product and providing users with the highest level of quality assurance.
| C | Si | Mn | P | S | Cr | Ni |
| ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0–20.0 | 8.0–11.0 |
| Property | Value (Min) | Test Method |
| Tensile Strength | ≥515 MPa (75 ksi) | ASTM E8 / E8M |
| Yield Strength (0.2% offset) | ≥205 MPa (30 ksi) | ASTM E8 / E8M |
| Elongation (in 2″ or 50 mm) | ≥35% | ASTM E8 / E8M |
| Hardness (HRB) | ≤90 HRB | ASTM E18 |
ASTM A312 is a widely recognized standard for stainless steel pipes and tubes, specifying requirements for seamless, welded, and heavily cold-worked pipes used in general industrial applications. It defines material grades, dimensions, mechanical properties, and testing procedures.
ASME SA312, on the other hand, is the same specification adopted by the ASME Boiler and Pressure Vessel Code (BPVC). Pipes manufactured to ASME SA312 comply with BPVC requirements, making them suitable for pressure vessel, boiler, and high-pressure piping systems.
Key Takeaways:
Both standards ensure high-quality stainless steel pipes, but ASME SA312 emphasizes compliance with pressure vessel and boiler regulations.
TP304 stainless steel pipes are widely used in industries that demand high corrosion resistance, temperature stability, and strict hygiene standards. Its versatility makes it an ideal choice for critical piping systems and various industrial applications.
Chemical Processing Industry
Commonly used for general corrosion-resistant process piping and chemical transport systems, TP304 pipes ensure long-term reliable operation in harsh chemical environments.
Food and Beverage Industry
Ideal for dairy, brewing, and food processing piping systems. Its smooth, non-toxic surface fully complies with hygiene standards, making it highly suitable for sanitary fluid transport.
Pharmaceutical and Sanitary Systems
Used in sanitary process piping, pure water systems, and pharmaceutical manufacturing facilities, meeting the industry's extremely strict hygiene and safety standards.
Petroleum and Natural Gas Industry
Used for high-pressure pipelines, equipment connections, and processing facilities. TP304 pipes effectively resist corrosion caused by hydrocarbons and other industrial fluids.
Water Treatment Industry
With excellent chemical corrosion resistance, TP304 pipes are highly suitable for transporting drinking water, wastewater, and other fluids in corrosive environments.
Heat Exchangers and Boilers
TP304 pipes provide thermal stability up to 870℃, making them an ideal material for manufacturing heat exchangers, boilers, and high-pressure piping components.
HVAC (Heating, Ventilation, and Air Conditioning) and Construction
Extensively used in HVAC systems, as well as general fluid transport piping in construction and mechanical engineering projects.
Our TP304 pipes undergo a strict quality assurance process:
Our ASTM A312 / ASME SA312 TP304 stainless steel pipes and tubes are produced under strict quality control and undergo comprehensive third-party inspection to ensure consistent performance and reliability.
Manufacturing Process
Quality Inspection & Testing
Mechanical & Chemical Tests:
Non-Destructive Testing (NDT):
Response Time
Ideal Standard: Technical inquiries should be responded to within 2 hours.
On-Time Delivery (OTD)
Ideal Standard: For orders with formal records, the on-time delivery rate should reach 100%.
Minimum Order Quantity (MOQ)
Q1: What is the difference between TP304 and TP304L?
A1: TP304L has a lower carbon content (≤0.03%), which eliminates the need for additional solution treatment after welding and provides better resistance to intergranular corrosion. For applications involving frequent welding or high-temperature environments, 304L is preferred; for requirements with high-temperature strength, standard TP304 is more suitable.
Q2: Can TP304 pipes handle high-pressure applications?
A2: Yes. Seamless TP304 pipes are highly suitable for high-pressure environments and comply with the pressure requirements specified in ASTM A312.
Q3: How to distinguish between A312 and SA312?
A3: ASTM A312 is a material standard, while ASME SA312 is a material standard recognized by the ASME Boiler and Pressure Vessel Code (BPVC). SA312 is typically used for pressure vessels and pressurized pipelines, with stricter certification and traceability requirements.
Q4: Are custom lengths supported?
A4: Fully supported. We can cut pipes to your specified lengths and provide corresponding surface treatments according to project requirements.
Explore our full range of stainless steel grades for pipes and tubes, including TP304, TP316, TP321, duplex, and super duplex materials.
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