317L Stainless Steel Pipe
Stainless steel 317L belongs to a low-carbon austenitic grade. The Stainless Steel 317L Pipe is designed with a chemical composition consisting of iron, chromium, nickel, molybdenum, manganese, silicon, phosphorus, carbon, and sulfur.
Alloy 317L is a molybdenum-containing, low-carbon austenitic stainless steel with increased additions of chromium, nickel, and molybdenum for better corrosion resistance and increased resistance to chemical attack for sulfurous, acetic, formic, citric, and tartaric acids. Due to its low carbon content, 317L also provides resistance to sensitization when welded and higher creep, stress to rupture, and tensile strength at elevated temperatures. It is non-magnetic in the annealed condition but may become slightly magnetic after welding.
Product Description
| Specifications | ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V; ASTM A789/A790 |
| Sizes (Seamless) | 1/2″ NB – 24″ NB |
| Sizes (ERW) | 1/2″ NB – 24″ NB |
| Sizes (EFW) | 6″ NB – 100″ NB |
| Wall Thickness | Schedule 5S – Schedule XXS (heavier on request) |
| Other Materials Testing | NACE MR0175, H₂ SERVICE, OXYGEN SERVICE, CRYO SERVICE, etc. |
| Dimensions Standards | Manufactured and inspected/tested to relevant standards (ASTM, ASME, API, etc.) |
Chemical Composition
| Ni | Cr | Mo | Mn | Si | C | N | S | P | Fe |
| 11.0 – 15.0 | 18.0 – 20.0 | 3.0 – 4.0 | 2.0 Max | .75 Max | 0.03 Max | 0.1 Max | 0.03 Max | 0.045 Max | Balance |
Mechanical Properties
| Grade | Tensile Strength (MPa) (Min) | Yield Strength 0.2% offset (MPa) (Min) | Elongation (% in 50mm) (Min) | Hardness (Brinell) (MAX) | Hardness (Rockwell B) (MAX) |
| 317L | 76 (615) | 30 (205) | 40 | 217 | 95 |
Physical Properties
|
Specific Heat (0-100°C)
|
Thermal Conductivity
|
Thermal Expansion
|
Modulus Elasticity
|
Electrical Resistivity
|
Density
|
|
500
|
14.6
|
16.5
|
193
|
7.4
|
7.99
|
|
J.kg-1.°K-1
|
W.m -1.°K-1
|
mm/m/°C
|
GPa
|
μohm/cm
|
g/cm3
|
Grade specifications
|
STANDARD
|
UNS
|
WERKSTOFF NR.
|
|
SS 317
|
S31700
|
1.4449
|
|
SS 317L
|
S31703
|
1.4438
|
Applications
Alloy 317L is commonly used to handle sulfur, pulp liquor, acid dyestuffs, acetylating and nitrating mixtures, bleaching solutions, severe coal and oil, and many chemical compounds. Some other applications that use alloy 317L include:
- Paper and pulp handling equipment
- Chemical and petrochemical processing equipment
- Condensers in fossil and nuclear-fueled power generation stations
- Food processing equipment
- Textile equipment
Application
Agricultural Modernization
Construction Engineering
Environmental Protection Engineering
Food Processing Industry
Intelligent Home Appliances
Medical and Health Field
New Energy Infrastructure
