Stainless Steel Alloys

Lean Duplex 2003

Lean Duplex 2003

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 2003
< 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 2003 ±0.005" (0.127 mm) ±10% Coils to 80,000' (24,384 m)
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Physical Properties 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 2003 S32003 A789, A790 100,000 690 100 70,000 485 70 25 - 30 Rc 27.5 7.2 120
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Composition of Pipe and Tubing

GradeLean Duplex 2003
UNS DesignationS32003
Carbon (C) Max. 0.030
Manganese (Mn) Max. 2.00
Phosphorous (P) Max. 0.030
Sulphur (S) Max. 0.020
Silicon (Si) Max. 1.00
Chromium (Cr) 19.5 – 22.5
Nickel (Ni) 3.00 – 4.00
Molybdenum (Mo) 1.50 – 2.00
Nitrogen (N) 0.14 – 0.20
Iron (Fe) Bal.
Copper (Cu) —
Other Elements —
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Product Range

AlloyUNS DesignationWerkstoff NR.Specifications*
Lean Duplex 2003 S32003 — 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.