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Haynes556/UNS R30556

Haynes556/UNS R30556
 
Form ASTM
Rod B 572
Plate, sheet and strip B 435, B 906
Seamless pipe and tube B 622
Welded pipe B 619, B 775
Welded tube B 626, B 751
Welding fitting B 366
Billet and bar for reforging B 472
 

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
 

Physical properties
 
Density 8.23 g/cm3
Melting range 1330-1415℃
 

Features: 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.
Applications: Industrial waste incinerators, rotary calciners and kilns, hot-dip galvanizing equipment, aerospace industry high temperature components.
Note: Haynes and 556 are registered trademarks of Haynes International, Inc.