ASTM A312 TP304 1.4301 Stainless Steel Seamless Pipe
ASTM A312 TP304 1.4301 Stainless Steel Seamless Pipe
Overview:
ASTM A312 TP304 is a globally recognized specification for seamless, welded, and heavily cold-worked austenitic stainless steel pipes that are commonly used in high-temperature and corrosive environments. It is also referred to by its European equivalent, 1.4301, which adheres to EN standards.
ASTM A312 TP304L has a carbon content of 0.03% or less. This alloy can be used in the as-welded condition without becoming susceptible to intergranular corrosion. ASTM A312 TP304L Stainless Steel Seamless Pipe are tested in accordance to internationally recognized standards. ASTM A312 Stainless Steel 304L Seamless Pipe shall be made by a process that does not involved welding at any stage of production. It has excellent features like resistance to corrosion, Prevention of product contamination, Resistance to oxidation, East of fabrication, Excellent formability, Beauty of appearance, Ease of cleaning, High strength with low weight, Good strength and toughness at cryogenic temperatures and Ready availability of a wide range of product forms.
Key Features:
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Material Composition:
- TP304 is composed primarily of chromium (18-20%) and nickel (8-10.5%), with low carbon content (<0.08%).
- This composition provides excellent corrosion resistance, especially against oxidation and intergranular corrosion.
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Corrosion Resistance:
- Offers outstanding performance in environments with mild to moderate corrosive conditions, such as in chemical processing, food preparation, and medical applications.
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High Durability:
- Exhibits high strength, toughness, and resistance to wear, making it suitable for both low and high-pressure systems.
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Seamless Construction:
- The seamless manufacturing process ensures a uniform structure without welds, increasing mechanical strength and reducing the risk of leakage.
Specification:
| Standard | ASTM A312 & Its equivalent ASME, DIN & EN Standard |
| Grades | TP304/304L;1.4301/1.4307 |
| Type | Straight seamless pipe |
| Outer Diameter | 1/2'' to 48'' or custom size |
| Wall Thickness | SCH 5S to SCH XXS |
| Length | Upto 6 meters or custom cut lengths |
| Delivery Condition | Solution Annealed & Pickled |
| Ends | Plain End, Beveled End |
| Other Testing | Product Analysis, Eddy Current Test, Hydrostatic Test, Ultrasonic Test, Flattening Test, Hardness Test, Tensile Test etc. |
| Dimension | All Pipe & Tube Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME |
| Packing | Plywood case/Woven bag in bundle |
Chemical Composition
| Grade | UNS | C | Mn | P | S | Si | Cr | Ni |
| TP304 | S30400 | 0.08 max | 2.00 max | 0.045 max | 0.03 max | 1.00 max | 18.0-20.0 | 8.0-11.0 |
| TP304L | S30403 | 0.035 max | 2.00 max | 0.045 max | 0.03 max | 1.00 max | 18.0-20.0 | 8.0-13.0 |
Mechanical Properties
| Material | Heat Treatment |
Temperure Min.ºF(ºC) |
Tensile Strength Ksi (MPa), Min. |
Yield Strength Ksi (MPa), Min. |
Elongation %, Min |
| TP304 | Solution | 1900 (1040) | 75(515) | 30(205) | 35 |
| TP304L | Solution | 1900 (1040) | 70(485) | 25(170) | 35 |
Applications
- Industrial Sectors:
- Petrochemical and chemical industries.
- Oil and gas pipelines.
- Power plants and heat exchangers.
- Food & Beverage:
- Used in processing and storage applications due to its hygienic properties.
- Construction & Architecture:
- Utilized in structural components and decorative elements.
- Marine Applications:
- Resistant to saltwater corrosion, making it suitable for marine environments.
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