20 NICKEL PIPE
20 NICKEL PIPE
Alloy 20 nickel pipe is made from a nickel-iron-chromium alloy with additions of copper and molybdenum. Contains niobium for stabilization against sensitization resulting in intergranular corrosion. Has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals, containing chlorides and sulfuric, phosphoric, nitric acids.
Typical applications include tanks, piping, heat exchangers, pumps, valves.
STOCK SIZE RANGE:
OD: 1/2″ through 4″
Wall: Schedule 40 through Schedule 80
Specifications: ASTM B729, ASME SB 729
Typical Chemical Composition %
| Nickel | 32.0-38.0 |
| Chromium | 19.0-21.0 |
| Iron | Remainder |
| Molybdenum | 2.0-3.0 |
| Sulfur | .035 max |
| Carbon | 0.07 max |
| Manganese | 2.0 max |
| Silicon | 1.00 max |
| Phosphorous | .045 max |
| Copper | 3.0-4.0 |
| Nb+Ta | 8 X C-1.0 |
Typical Mechanical Properties
| Annealed | Mpa | |
| Yield Strength | 35 ksi | 240 |
| Tensile Strength | 80 ksi | 550 |
| Elongation % | 30 |
