Haynes 556

Application Industry:

    Equivalent designationsEquivalent designations UNS R30556 FormASTMRodB 572Plate, sheet and stripB 435, B 906Seamless pipe and tubeB 622Welded pipeB 619, B 775Welded tubeB 626, B 751Welding fittingB 366Billet and bar for reforgingB 472Chemical composition%FeCrNiCoMoWCMnSiminbalance21.019.016.02.52.00.050.500.20max23.022.521.04.03.50.152.000.80%PSAlTaNbLaZrNBmin0.100.300.0050.0010.10max0.04...

  • FOB Price: US $0.5 - 9,999 / Piece
  • Min.Order Quantity: 100 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month

Product Detail

Product Tags


Equivalent designationsEquivalent designations 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.


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