ASTM A312 TP304 / TP304L SMLS Austenitic Stainless Steel Pipes
YUHONG Group offers ASTM A312/ASME SA312 TP304/TP304L SMLS
austenitic stainless steel tubes/pipes with high quality which
generally are used in heat exchangers, boilers, and other
high-temperature application.
ASTM A312/ASME SA312 This specification covers seamless, straight-seam welded, and
heavily cold worked welded austenitic stainless steel pipe intended
for high-temperature and general corrosive service.
A312 TP304/TP304L is a specific type of stainless steel material
commonly used in various applications.There are some advantages of
using this material:
1. TP304/TP304L has excellent corrosion resistance, making it
suitable for use in environments with high levels of humidity,
chemicals and corrosive substances.
2. The material can withstand high temperatures without any
noticeable material degradation, making it suitable for
applications involving extreme heat or thermal cycling.
3. TP304/TP304L has high tensile strength and good mechanical
properties, making it durable and suitable for various industrial
applications.
4. Can be easily shaped, welded and fabricated into various shapes.
5. It has excellent hygienic performance, making it suitable for
applications such as the food and beverage industry, pharmaceutical
industry, and medical equipment that require strict sanitation.
6. TP304/TP304L is a cost-effective choice
Specifications
| Standard | ASTM A312/ASME SA312 |
| Name of Material | SMLS Tubes/Pipes, Austenitic Stainless Steel |
| Keywordas | Heat exchanger/Boiler tubes/pipes/tubes; Seamless / Welded
austenitic steel pipes/tubes,etc |
| Size | OD 1/8"-48" or required by clientes; length ≤12mts in container or
required by clients |
| Length | Specific or random |
| Quantity | Feet,metres,or number of lengths |
Grade We Can Offer:
TP304,TP304L,TP304H,TP310S,TP310H,TP316L,TP316H,TP310S,TP310H,TP317,TP317L,TP321,TP321H,TP347,TP347H,TP904L,etc
Test Required
Transverse Tension Tests / Flattening Test / Flaring Test / Etching
Tests / Hardness Test / Hydrostatic Test
Radiographic Examination / Stabilizing Heat Treatment /
Intergranular Corrosion Test / Weld Decay Test,etc.
Chemical Composition max%
| Grade | UNS | C | Mn | P | S | Si | Cr | Ni |
| TP304 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18-20 | 8-11 |
| TP304L | S30403 | 0.035A | 2 | 0.045 | 0.03 | 1 | 18-20 | 8-13 |
Note A:For small diameter or thin walls or both, where many drawing
passes are required, a carbon maximum of 0.040% is necessary in
grades TP304L and TP316L. Small outside diameter tubes are defined
as those less than 0.500 in. [12.7 mm] in outside diameter and
light wall tubes as those less than 0.049 in. [1.20 mm] in average
wall thickness (0.044 in. [1.10 mm] in minimum wall thickness).
Annealing Requirements
| TP304H | Heat Treating Temperature | Cooling/Testing Requirements |
| Cold finished | 1900°F [1040°C] | Quenched in water or rapidly cooled by other means. |
| Hot finished | 1900°F [1040°C] |
Mechanical Property
| Grade | Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation (%) |
| TP304 | 205min | 515 min | 35 min |
| TP304L | 170min | 485 min |
Applications
Pharmaceuticals
Power Generation
Petrochemicals Industries
Gas Processing
Marine Industries
Food Processing Industries
Chemical Equipment
Oil & Gas Industries
Heat Exchangers/Boilers/Condensers/Superheaters,etc
