ASME SA312 TP317L 1.4438 Welded Pipe For High Temperature Service
Brand Name:YUHONG
Certification:ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:ASME SA312 TP317L
Minimum Order Quantity:1000KGS
Delivery Time:Depends on quantity
Payment Terms:T/T,L/C
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ASME SA312 TP317L Welded Pipe For High Temperature Service
TP317L is a chromium nickel molybdenum alloy that can perform under high temperatures. The alloy is solid solution heated for strength and the pipes are produced through different manufacturing mechanisms. The SA 312 TP 317L products have high yield strengths and can perform well under stress conditions. They have elongation rate higher than 35%.
Key Features of A312 TP317L Welded Pipe:
1. Material Composition:
- TP317L is a low-carbon version of the 317 stainless steel grade,
which typically includes:
- Chromium: 18-20%
- Nickel: 11-15%
- Molybdenum: 3-4%
- Manganese, Silicon, and trace amounts of other elements.
- The low carbon content helps reduce the risk of carbide
precipitation during welding, enhancing corrosion resistance.
2. Corrosion Resistance:
- TP317L offers excellent resistance to a wide range of corrosive
environments, including chlorides, making it suitable for
applications in chemical processing, oil and gas, and marine
environments.
3. High-Temperature Resistance:
- The pipe can withstand high temperatures, making it suitable for
applications that involve heat, such as power generation and heat
exchangers.
4. Welding and Fabrication:
- Being a welded pipe, TP317L can be produced in long lengths and
can be easily fabricated and welded, allowing for flexibility in
construction and installation.
5. Applications:
- Common applications for A312 TP317L welded pipes include:
- Chemical and petrochemical processing
- Oil and gas industries
- Power generation
- Pulp and paper manufacturing
- Food and beverage processing
- Pharmaceutical manufacturing
6. Standards and Specifications:
- The pipe is manufactured in accordance with ASTM A312/A312M
specifications, which outline the requirements for the manufacture,
testing, and quality assurance of stainless steel pipes.
7. Sizes and Schedules:
- A312 TP317L welded pipes are available in various sizes and wall
thicknesses (schedules), accommodating different pressure and
temperature requirements.
317L Chemical Composition
| Element | Content (%) |
| Iron, Fe | Balance |
| Chromium, Cr | 18-20 |
| Nickel, Ni | 11-15 |
| Molybdenum, Mo | 3-4 |
| Manganese, Mn | 2 |
| Silicon, Si | 1 |
| Phosphorous, P | 0.045 |
| Carbon, C | 0.03 |
| Sulfur, S | 0.03 |
Stainless Steel 317L Pipes Physical Properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 317L | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Production Process:
Mechanical Properties of TP317L Pipe
| Properties | Metric | Imperial |
| Tensile strength | 595 MPa | 86300 psi |
| Yield strength | 260 MPa | 37700 psi |
| Modulus of elasticity | 200 GPa | 29000 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 55% | 55% |
| Hardness, Rockwell B | 85 | 85 |
DIN 1.4438 / SS 317L Pipe Tolerances
| Stainless Steel 317L Pipe OD | ASTM A312 TP317L Pipe Tolerance |
|---|---|
| 4 to 35mm | +/- 0.08mm |
| 35 to 38mm | +/- 0.15mm |
| 38 to 60mm | +/- 0.20mm |
| 60 and above | +/- 0.25mm |
TP317L Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| 317 | 1.4449 | S31700 | SUS 317 | – |
| 317L | 1.4438 | S31703 | SUS 317L | X2CrNiMo18-15-4 |
Applications
The 317L grade austenitic stainless steel is used in a variety of applications such as power plant, paper and pulp processing plants, textile equipment, petrochemical processing plants, food processing plants, flue gas desulfurization scrubbers and in chemical processing plants. This range of applications is possible because the material is malleable and durable. It is also a chromium, nickel and molybdenum alloy.
ASME SA312 TP317L 1.4438 Welded Pipe For High Temperature Service
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