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)

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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