Haynes 556

Short Introduction:

  • Haynes 556 combines effective resistance to sulfidizing, carburizing and chlorine-bearing environments at high temperatures with good oxidation resistance, fabricability and excellent high temperature strength. It also resists to corrosion by molten zinc, molten chloride salts and other salts.
  • Processing conditions and application:
  • Industrial waste incinerators, rotary calciners and kilns, hot-dip galvanizing equipment, aerospace industry high temperature components.

Category:

Description

Haynes 556

Material grades and equivalents: Haynes 556/ UNS R30556

Chemical composition:

% Fe Cr Ni Co Mo W C Mn Si
min balance 21.0 19.0 16.0 2.5 2.0 0.05 0.50 0.20
max 23.0 22.5 21.0 4.0 3.5 0.15 2.00 0.80
% P S Al Ta Nb La Zr N B
min 0.10 0.30 0.005 0.001 0.10
max 0.040 0.015 0.50 1.25 0.30 0.10 0.10 0.30 0.020

 Mechanical properties:

Density 8.23 g/cm3
Melting range 1330-1415℃

Characteristic as below:

  • Haynes 556 combines effective resistance to sulfidizing, carburizing and chlorine-bearing environments at high temperatures with good oxidation resistance, fabricability and excellent high temperature strength. It also resists to corrosion by molten zinc, molten chloride salts and other salts.
  • Processing conditions and application:
  • Industrial waste incinerators, rotary calciners and kilns, hot-dip galvanizing equipment, aerospace industry high temperature components.