Hastelloy C-4

Hastelloy C-4 Chemical compostion:

Alloy

%

Ni

Cr

Mo

Fe

C

Mn

Si

Co

S

P

Ti

C-4

Min.

65

14

14

 

 

 

Max.

 

18

17

3.0

0.01

1.0

0.08

2.0

0.010

0.025

0.70


Hastelloy C-4 Physical properties:

Density

8.64 g/cm3

Melting point

1350-1400 ℃


Hastelloy C-4 Alloy minimum mechanical properties in the room temperature:
Alloy
Tensile strength
Rm N/mm2
Yield strength
RP0.2N/mm2
Elongation
A5 %
C-4
783
365
55

HASTELLOY C-4 alloy is a nickel-chromium-molybdenum alloy with outstanding high-temperature stability as evidenced by high ductility and corrosion resistance even after aging in the 1200 to 1900°F (649 to 1038°C) range. This alloy resists the formation of grain-boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in the as-welded condition. C-4 alloy also has excellent resistance to stress-corrosion cracking and to oxidizing atmospheres up to 1900°F (1038°C).

HASTELLOY C-4 alloy has exceptional resistance to wide variety of chemical process environments. These include hot contaminated mineral acids, solvents, chlorine and chlorine contaminated media (organic and inorganic), dry chlorine, formic and acetic acids, acetic anhydride, and seawater and brine solutions.

HASTELLOY C-4 alloy can be forged, hot-upset, and impact extruded. Although the alloy tends to work-harden, it can be successfully deep-drawn, spun, press formed or punched. All of the common methods of welding can be used to weld HASTELLOY C-4 alloy, although the oxy-acetylene and submerged arc processes are not recommended when the fabricated item is intended for use in corrosion service. Special precautions should be taken to avoid excessive heat input.

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Available forms are seamless pipe, welded pipe, seamless tube, welded tube, bar, wire, sheet, plate, forgings, pipe fittings and flanges..
Products Standard
Sheet/Plate content ASTM B443, AMS 5599, AMS 5869, ISO 6208, VdTüV 499, BS 3072NA21, EN 10095, DIN 17750
Round Bar/Wire content ASTM B446, AMS 5666, AMS 5837, ISO 9723, ISO 9724, ISO 9725, VdTüV 499, BS3076NA21, EN 10095, DIN 17752, DIN 17753, DIN 17754
Pipe & Tube content ASTM B444, ASTM B751, ASTM B829, ASTM B775, ASTM B705, ASTM B704, AMS 5581, ISO 6207, VdTüV 499, BS 3074NA21, DIN 17751
Fittings content ASTM B366
Forgings content ASTM B564, AMS 5666
Weld Wire content AWS A5.14 ERNiCrMo-3, AWS A5.11 ENiCrMo-3, DIN 1736 SG NiCr20Mo9Nb
 
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