Nickel Alloy PK33/ Nimonic PK33


Technical Data Sheet

Chemical Composition Limits
Weight% Ni Cr Mo Fe Al Ti C
PK33 Bal 16-20 5-9 1.0 max 1.7-2.5 1.5-3.0 0.07 max
Weight% Cu Si Mn Co B Zr S
PK33 0.2 max 0.5 max 0.5 max 12.0-16.0 0.005 max 0.06 max 0.015 max

Alloy PK33 is a nickel- chromium - cobalt precipitation hardenable alloy but the addition of Molybdenum makes Alloy PK33 solid-solution strengthened. PK33 is commonly used in gas turbines as flame tubes because of its high temperature strength, creep resistance and welded sheet structures.

Typical Mechanical Properties

Material Condition 20°C 0.1 % Proof Stress MPa Tensile Strength MPa Elongation % Reduction of Area %
PK33 Bar Heat Treatment 2h/1100°C/AC +4h 850°C/AC 664 1127 33 41

Availability
PK33 is available in Sheet, Plate, Round Bar, Flat Bar, Forging Stock, Extruded Section and Welding Wire. For all stock availability contact Sales.

Specifications
DTD5057
AFNOR NC 19 KDu/v
NIMONIC PK33

Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.