Womic Stainless Steel Co., Ltd
317L stainless steel pipe is a low carbon, molybdenum-alloyed austenitic stainless steel pipe designed to provide superior corrosion resistance compared with conventional 316 and 316L stainless steel. Due to its higher molybdenum content, 317L stainless steel demonstrates significantly improved resistance to pitting corrosion, crevice corrosion, and chemical attack in aggressive environments.
317L stainless steel pipes are widely used in industries where corrosion resistance is critical, particularly in chemical processing plants, pulp and paper industries, offshore engineering facilities, and flue gas desulfurization systems. The low carbon composition also minimizes the risk of intergranular corrosion after welding.
Key features of 317L stainless steel pipe include:
1 excellent resistance to chloride corrosion
2 improved pitting and crevice corrosion resistance
3 low carbon composition for superior weldability
4 high durability in chemical environments
5 strong resistance to acidic industrial media
As a global supplier, Womic Steel manufactures high quality 317L stainless steel pipes for international engineering projects.
317L stainless steel pipes are manufactured according to international standards that define requirements for chemical composition, mechanical properties, heat treatment, dimensional tolerance, and inspection procedures.
Common production standards include:
1 ASTM A312
2 ASTM A213
3 ASTM A269
4 EN 10216-5
5 EN 10217-7
These standards ensure reliable performance for high temperature and high pressure piping systems.
317L stainless steel has equivalent grades across different international material standards.
|
Standard |
Grade |
|
ASTM |
TP317L |
|
UNS |
S31703 |
|
EN |
1.4438 |
|
JIS |
SUS317L |
These equivalent grades allow engineers and project contractors to select compatible materials for global projects.
The enhanced corrosion resistance of 317L stainless steel is mainly due to its higher molybdenum content.
|
Element |
Content (%) |
|
Carbon |
≤0.03 |
|
Silicon |
≤1.00 |
|
Manganese |
≤2.00 |
|
Chromium |
18.0 – 20.0 |
|
Nickel |
11.0 – 15.0 |
|
Molybdenum |
3.0 – 4.0 |
Metallurgical characteristics include:
1 high chromium content forming corrosion resistant
passive film
2 increased molybdenum improving pitting corrosion resistance
3 nickel improving ductility and toughness
4 low carbon reducing risk of intergranular corrosion
317L stainless steel pipes provide strong mechanical properties and excellent ductility.
|
Property |
Value |
|
Tensile Strength |
≥515 MPa |
|
Yield Strength |
≥205 MPa |
|
Elongation |
≥35% |
|
Hardness |
≤217 HBW |
Mechanical advantages include:
1 excellent ductility for fabrication and forming
2 stable strength at elevated temperatures
3 strong structural performance in industrial piping systems
4 reliable mechanical performance after welding
317L stainless steel offers superior corrosion resistance compared with many conventional stainless steels.
Important corrosion resistance characteristics include:
1 excellent resistance to pitting corrosion in chloride
environments
2 strong resistance to crevice corrosion
3 improved resistance to sulfuric and phosphoric acid solutions
4 excellent performance in chemical processing plants
5 good durability in marine atmospheric conditions
These characteristics make 317L suitable for highly corrosive industrial environments.
317L stainless steel pipes can be produced through seamless pipe manufacturing or welded pipe fabrication depending on application requirements.
The seamless pipe process generally includes:
1 stainless steel billet inspection
2 billet heating in high temperature furnaces
3 rotary piercing to form hollow tubes
4 hot rolling or extrusion process
5 cold drawing or cold rolling for precision sizing
6 solution annealing heat treatment
7 straightening and cutting
8 final dimensional inspection
Welded stainless steel pipes are produced through:
1 stainless steel coil preparation
2 roll forming into pipe shape
3 automatic TIG welding
4 weld seam heat treatment
5 pickling and passivation
6 dimensional calibration
7 nondestructive testing
Womic Steel applies advanced production technology and strict quality control procedures.
317L stainless steel pipes are manufactured in a wide range of dimensions to satisfy different industrial engineering requirements.
Typical production capabilities include:
|
Pipe Type |
OD Range |
|
Seamless Pipe |
6 mm – 610 mm |
|
Welded Pipe |
15 mm – 2000 mm |
Additional manufacturing capabilities include:
1 customized pipe length production
2 project specific dimensions
3 large diameter stainless steel pipe fabrication
317L stainless steel pipes are manufactured according to ASME pipe schedule classifications.
Typical schedules include:
1 SCH 5
2 SCH 10
3 SCH 20
4 SCH 40
5 SCH 80
6 SCH 160
The pipe schedule determines the pressure carrying capacity of the piping system.
Surface finishing improves corrosion resistance, cleanliness, and appearance of stainless steel pipes.
Common finishing options include:
1 pickled and passivated surface
2 bright annealed surface
3 mechanically polished surface
4 sand blasted industrial finish
These finishing processes ensure excellent corrosion resistance and clean surface quality.
Strict inspection procedures are carried out during manufacturing to ensure product quality.
Typical inspection and testing include:
1 chemical composition analysis
2 mechanical property testing
3 hydrostatic pressure testing
4 ultrasonic testing
5 eddy current testing
6 PMI positive material identification
7 dimensional tolerance inspection
Womic Steel provides full quality documentation including mill test certificates and inspection reports.
317L stainless steel pipes are widely used in industries where severe corrosion environments exist.
Major applications include:
1 chemical processing pipelines
2 pulp and paper production equipment
3 flue gas desulfurization systems
4 marine engineering structures
5 petrochemical processing plants
6 industrial heat exchanger systems
7 offshore oil and gas facilities
These applications require materials capable of maintaining performance under aggressive chemical exposure and high operating temperatures.
As a global supplier of stainless steel piping products, Womic Steel offers comprehensive manufacturing and supply capabilities.
Key advantages include:
1 Advanced stainless steel pipe production equipment
2 Strict quality inspection and testing systems
3 Wide range of pipe sizes and grades
4 Competitive pricing for international projects
5 Reliable delivery schedules and logistics support
With extensive experience supplying stainless steel pipes to international engineering projects, Womic Steel provides reliable piping solutions for customers worldwide.
Customized services. Rapid production. Global reach. We ensure your specific needs are fulfilled with precision and top-tier quality.
Website: www.womicstainless.com
Email:info@womicstainless.com
Tel/WhatsApp/WeChat:Victor: +86-15575100681 or Jack: +86-18390957568
