317L Stainless Steel Welded Pipe
Grade: 317L/UNS S31703/W.Nr.1.4438
Size: 12mm*0.5mm-2000mm*100mm
Length: 1000mm-12000mm
Standard: ASTM A312, ASTM A269, ASTM A790, ASTM A789 etc.
Surface: No.1(Pickling), Bright(Polished)
- Fast Shipping / Ready Stock
- ISO 9001 Factory
- Custom Cutting
- 100% MTC & SGS Inspection
317L Stainless Steel Pipe is a low-carbon, molybdenum-rich austenitic grade designed for enhanced resistance to general corrosion, pitting, and crevice attack compared with 316L. Its low carbon content supports welded fabrication and corrosion performance. 317L pipe is used in chemical processing, pulp and paper, pollution-control systems, pharmaceutical plants, and process piping where aggressive chemical environments require a higher-alloy stainless steel.
Chemical Composition
| Element | Content (wt. %) |
| C | ≤0.030 |
| Si | ≤1.00 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.030 |
| Cr | 18.0–20.0 |
| Ni | 11.0–15.0 |
| Mo | 3.0–4.0 |
| N | ≤0.10 |
| Other | Fe: Balance |
Mechanical Properties
| Condition | Tensile Strength | Yield Strength (0.2%) | Elongation | Hardness |
| Solution annealed | ≥515 | ≥205 | ≥35 | ≤217 HB / ≤95 HRB |
- Chemical processing
- Pulp and paper plants
- Pollution-control equipment
- Pharmaceutical equipment
- Petrochemical piping
- Industrial scrubbers


317L Stainless Steel Pipe is a low-carbon, molybdenum-rich austenitic grade designed for enhanced resistance to general corrosion, pitting, and crevice attack compared with 316L. Its low carbon content supports welded fabrication and corrosion performance. 317L pipe is used in chemical processing, pulp and paper, pollution-control systems, pharmaceutical plants, and process piping where aggressive chemical environments require a higher-alloy stainless steel.
Chemical Composition
| Element | Content (wt. %) |
| C | ≤0.030 |
| Si | ≤1.00 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.030 |
| Cr | 18.0–20.0 |
| Ni | 11.0–15.0 |
| Mo | 3.0–4.0 |
| N | ≤0.10 |
| Other | Fe: Balance |
Mechanical Properties
| Condition | Tensile Strength | Yield Strength (0.2%) | Elongation | Hardness |
| Solution annealed | ≥515 | ≥205 | ≥35 | ≤217 HB / ≤95 HRB |
- Chemical processing
- Pulp and paper plants
- Pollution-control equipment
- Pharmaceutical equipment
- Petrochemical piping
- Industrial scrubbers
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