Products Description
our Advantages
1. Material Control
TORICH ASTM A269 304 Seamless Precision Stainless Steel Pipe is made of high-quality austenitic stainless steel and undergoes strict chemical composition testing to ensure that the pipe meets the ASTM A269 standard specifications.
2. Seamless Structure
Our pipes are manufactured using hot piercing and precision cold drawing processes, resulting in uniform wall thickness and excellent pressure resistance. This reduces the risk of leakage under high pressure or pulsating loads, making them suitable for instrumentation, hydraulic, and other demanding applications.
3. Corrosion Resistance
The ASTM A269 304 Seamless Precision Stainless Steel Pipe is suitable for common corrosive media such as water, condensate, and steam systems, atmospheric environments, mild organic acids, and alkaline solutions.
4. Surface Treatment
Our pipes undergo pickling and passivation treatment to enhance their corrosion resistance. The pipes are then precisely polished, with a surface roughness of Ra ≤ 0.04 μm. Bright annealing, annealing and pickling, and precision machining treatments are also available.
5. Excellent Mechanical Properties
Our pipes undergo solution annealing treatment to ensure good flexibility while withstanding internal pressure. Tensile tests are performed to ensure compliance with ASTM A269 standard specifications or customer requirements.
6. Precise Dimensions
Our stainless steel pipes are manufactured using multi-pass cold drawing processes, with strict control of dimensional tolerances to meet ASTM A269 standard specifications or customer requirements.
Applications areas
- Chemical and Petroleum Industries: Chemical plant piping systems, transportation of corrosive liquids and gases, downhole oil pipelines, and refinery pipelines.
- Medical Equipment: Manufacturing medical device components such as syringes, IV tubing, and endoscopes, as well as hospital water supply systems and gas pipelines.
- Precision Instruments and Industrial Equipment: Sensors and control tubes, hydraulic systems, and high-precision fluid transportation.
- Heat Exchangers and Boilers: Condensers, evaporators, and boiler systems, high-temperature fluid transportation.
Chemical Composition
| Element | Carbon | Manganese | Phosphorus | Sulfur | Silicon | Chromium | Nickel |
| Composition (%) | 0.08 max | 2.00 max | 0.045 max | 0.03 max | 1.00 max | 18.0–20.0 | 8.0–10.5 |
Mechanical Properties
| Property | Tensile Strength | Yield Strength | Elongation | Hardness |
| Value | 520–750 MPa | ≥205 MPa | ≥40% | ≤95 |
Physical Properties
| Properties | Density | Melting Point | Thermal Conductivity | Specific Heat Capacity |
| Values | 8.0 g/cm³ | 1400 - 1450°C | 16.2 W/m·K | 500 J/kg·K |
Possible Alternative Grades
- 304L: Lower carbon for improved weldability and reduced carbide precipitation
- 316 / 316L: Enhanced corrosion resistance for marine and chemical environments
- 321: Titanium-stabilized for high-temperature applications
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