PCC Energy Group

Lean Duplex 2101

Stainless Steel Alloys

Product Information

Lean Duplex 2101 Pipe and Tubing
  Sizes   Standard Tolerances
ProductsODWallLengths and/or coilsGradesODWallLengths
Welded Heat Exchangers & Condensers

Specifications: ASTM-A789 and ASME-SA789

0.5" (12.7 mm) to 4" (101.6 mm)

Metric sizes available

0.020" (0.51 mm) to 0.150" (3.81 mm) Cut lengths to 60' (18.3 m) Lean Duplex 2101
< 0.50" (12.7 mm) +/-0.005" (0.13 mm)
0.50" (12.7 mm) to <1.50" (38.1 mm)
+/-0.005" (0.13 mm)
1.50" (38.1 mm) to <3.50" (88.9 mm)
+/-0.010" (0.25 mm)
>3.50" (88.9 mm) to 4.00" (101.6 mm)
+/-0.015" (0.38 mm)
+/-15% +/-10% +1/8" (3 mm)/-0"
Subsea Umbilical Tubing

Specifications: ASTM-A789 and ASTM-A790

3/8" (9.53 mm) to 1-1/2" (38.1 mm) 0.039" (0.99 mm) to 0.125" (3.18 mm) Cut lengths to 60' (18.3 m)

Coils to 1-1/2" OD

Lean Duplex 2101 ±0.005" (0.127 mm) ±10% Coils to 80,000' (24,384 m)
Physical Properties of Lean Duplex 2101 Alloys in the Annealed Condition at -20°F to +100°F
      Tensile StrengthYield Strength            
AlloyUNS DesignationSpec.psiMPaksipsiMPaksiElongation in 2 in. (min.) %Grain Size Req.Max. HardnessModulus of Elasticity (x106 psi)Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6)Thermal Conductivity (BTU-in/ ft2-h-°F)
Lean Duplex 2101 S32101 A789, A790 94,000 650 94 77,000 530 77 30 30 Rc 27.5 7.6 180
Composition of Lean Duplex 2101 tubing and pipe
GradeLean Duplex 2101
UNS DesignationS32101
Carbon (C) Max. 0.040
Manganese (Mn) Max. 4.0 - 6.0
Phosphorous (P) Max. 0.040
Sulphur (S) Max. 0.030
Silicon (Si) Max. 1.00
Chromium (Cr) 21.0 – 22.0
Nickel (Ni) 1.35 – 1.70
Molybdenum (Mo) 0.10 – 0.80
Nitrogen (N) 0.20 – 0.25
Iron (Fe)
Copper (Cu) 0.10 – 0.80
Other Elements
Lean Duplex 2101 Product Range
AlloyUNS DesignationWerkstoff NR.Specifications*
Lean Duplex 2101 S32101 1.4162 A789, A790
*Note: The specifications noted including ASTM, ASME, or other applicable authorities are correct at the time of publication. Other specifications may apply for use of these materials in different applications.