ASTM A312 TP317/TP317L Seamless Stainless Steel Tubes - 515 MPa Tensile Strength, 8000 kg/m³ Density for Heat Exchangers
Price:
Negotiable
MOQ:
2Tons
Delivery Time:
30days
Brand:
Joyruns
Product Description
ASTM A312 TP317/TP317L Seamless Stainless Steel Heat Exchanger Tubes
ASTM A312 TP317/TP317L seamless high precision stainless steel tubes are austenitic grade alloys specifically designed for boiler, superheater, and heat exchanger applications. The "L" designation indicates lower carbon content for improved corrosion resistance.
Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| 317 | ≤0.08 | ≤2.0 | ≤1.0 | ≤0.040 | ≤0.030 | 18.0-20.0 | 3.0-4.0 | 11.0-14.0 | - |
| 317L | ≤0.08 | ≤2.0 | ≤1.0 | ≤0.040 | ≤0.030 | 18.0-20.0 | 3.0-4.0 | 11.0-15.0 | - |
Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Rockwell B (HR B) max | Brinell (HB) max |
|---|---|---|---|---|---|
| 317 | 515 | 205 | 35 | 75 | 205 |
| 317L | 515 | 205 | 35 | 75 | 205 |
Equivalent Grades
| Standard | Werkstoff Nr. | UNS | JIS | EN |
|---|---|---|---|---|
| SS 317 | 1.4449 | S31700 | SUS 317 | - |
| SS 317L | 1.4438 | S31703 | SUS 317L | X2CrNiMo18-15-4 |
Physical Properties
| Grade | Density (kg/m³) | Elastic Modulus (GPa) | Thermal Expansion (m/m/°C) | Thermal Conductivity (W/m·K) | Specific Heat (J/kg·K) | Electrical Resistivity (n·m) |
|---|---|---|---|---|---|---|
| 317 | 8000 | 193 | 17.2 | 16.2 | 500 | 720 |
Quality Testing
All tubes undergo comprehensive quality control including hydraulic testing and eddy current testing (ECT) to ensure structural integrity and performance reliability.
Packaging & Protection
Professional packaging ensures tube protection during transportation and storage, maintaining surface quality and dimensional accuracy.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Changzhou Joyruns Steel Tube CO.,LTD
Location
No.143 Qingyang North road,Tianning district. Changzhou
Contact Person
Lee