The ASME SA249 standard specifies the technical requirements for welded austenitic steel pipes for boilers, superheaters, heat exchangers and condensers.
TP304 is a specific grade under this standard, representing chromium-nickel austenitic stainless steel. It has excellent corrosion resistance, high temperature strength and processing performance, and is widely used in various industrial fields.
Surface treatment of ASME SA249 TP304 austenitic stainless steel pipe After strict pickling and passivation treatment, the surface oxide scale and welding residues are removed to improve the surface finish and corrosion resistance of the pipe.
Products Data
Chemical Composition Of SA 249 TP304 Tube
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 304 | min. | - | - | - | - | - | 18.0 | - | 8.0 | - |
| max. | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 10.5 | 0.10 | ||
ASTM A249 TP304 Tube Physical Properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 304 | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Products display
ASME SA249 TP304 Superheater Tube
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GNEE's annual production scale can reach 500,000 tons, and the warehouse inventory is more than 20,000 tons per year.
We can also provide processing procedures for steel pipe products, such as rust prevention, cutting and chamfering, connection, heat treatment, bending, galvanizing, polishing, beveling, pickling, spraying, CNC machining, etc.
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