Hastelloy C276 is a tungsten added nickel-molybdenum-chromium super alloy designed to offer excellent corrosion resistance in wide range of severe environments. The chromium in Hastelloy C276 conveys resistance to oxidizing media while high molybdenum and nickel content makes the nickel alloy specially resistant to pitting and crevice corrosion in reducing environments.
Chemical Composition
Hastelloy C276 Analysis
NiBal
Mo15 17
Cr14.5 16.5
Fe4 7
W3 4.5
Co2.5 max
Mn1.0 max
C0.01 max
v0.35 max
P0.04 max
S0.03 max
Si0.08 max
Monel 400 is a nickel-copper super alloy that is resistant to steam at high temperatures and sea water as well as to caustic and salt solutions. A solid solution alloy (Monel 400) that can only hardened by cold working. Monel 400 exhibits characteristics like high strength , toughness , good weldability and good corrosion resistance .
Chemical Composition
Monel 400
Ni63.0 min
Fe1.0 – 2.5
C0.3 max
Mn2.0 max
Si0.5 max
Cu28.0 – 34.0
Al0.50 max
S0.02 max
Inconel 600
Inconel 600 is a nickel-chromiumsuper alloy. It is readily weldable and non-magnetic in nature and used in various corrosion resisting applications. The chromium content of the Inconel 600 provides resistance to weaker oxidizing environments while the high nickel content provides exceptional resistance to chloride stress corrosion cracking and a level of resistance to reducing environments .
Chemical Composition
Inconel 600
Ni72.0 min
Cr14.0 17.0
Fe6.0 10.0
C0.15 max
Mn1.0 max
S0.015 max
Si0.5 max
Cu0.5 max
Incoloy 800,Incoloy 800H , and Incoloy 800HT are nickel-iron-chromium super alloys. When exposed to high-temperature these alloys not only provide excellent resistance to oxidation and carburization but also good strength too. These nickel steel alloys are similar except for the higher level of carbon in Incoloy 800H, and the addition of up to 1.20 percent titanium and aluminum in Incoloy 800HT.
Chemical Composition
Incoloy800 800H 800HT
Ni30-3530-3530-35
Fe39.5 min39.5 min39.5 min
Cr19-2319-2319-23
Cu0.75 max0.75 max0.75 max
Ti0.15-0.600.15-0.600.25-0.60
Al0.15-0.60 0.15-0.600.85-1.20
C0.1 max 0.05-0.10.06-0.1
Mn1.5 max1.5 max1.5 max
S0.015 max0.015 max0.015 max
Si1.0 max1.0 max1.0 max
Inconel 625
Inconel 625 is a low carbon Nickel-chromium-molybdenum-niobium super alloy .Inconel 625 is a oxidation and corrosion resistant nickel alloy that is used both for its outstanding aqueous corrosion resistance and high strength. Inconel 625‘s outstanding toughness and strength is due to the addition of niobium which acts with the molybdenum to stiffen the alloy’s matrix.
Chemical Composition
Inconel 625
Ni58.0 min
Cr20.0 – 23.0
Fe5.0 max
C0.10 max
Mn0.50 max
Si0.50 max
Mo8.0 – 10.0
Co1.0 max
Al0.40 max
Ti0.40 max
Nb + Ta3.15 – 4.15
P0.015 max
S0.015 max
Incoloy 825
Incoloy 825 (Nickel-Iron-Chromium alloy) with addition of copper and molybdenum .Against aqueous corrosion it has better resistance as compared to Incoloy 800, otherwise both are same .To provide exceptional resistance against many corrosive environments is how the chemical composition of Incoloy 825 is designed .Incoloy 825 is specially resistant to sulfuric and phosphoric acids.
Chemical Composition
Incoloy 825
Ni38.0 46.0
Cr19.5 23.5
Fe22.0 min
Mb2.5 3.5
Ti0.6 1.2
Cu1.5 3.0
Mn1.0 max
C0.05 max
S0.03 max
Al0.2 max
Si0.5 max
Nickel 200 or Ni 200 is 99.6% commercially pure wrought nickel. Nickel 200 has excellent resistance to many corrosive environments and good mechanical properties . Other useful features of Nickel 200 are its magnetic and magnetostrictive properties, low gas content,high thermal and electrical conductivities and low vapor pressure.
Nickel 201 or Ni 201 is the low-carbon version of Nickel 200 . The Nickel 201 has the similar characteristics as the Nickel 200
Stainless Steel Duplex 2205 is the most widely used duplex (ferritic/austenitic) stainless steel grade. It finds applications due to both excellent corrosion resistance and high strength.
Duplex 2205 is a nitrogen enhanced stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels.Duplex Steel 2205 is not generally suitable for use at temperatures above 300°C as it suffers from precipitation of brittle micro-constituents, nor below -50°C because of its ductile-to-brittle-transition.
TP 310, Stainless steel 310 is a combination, of good strength and corrosion, resistance in temperatures up to, 1149°C (2100°F). The high, chromium and nickel contents, give the steel excellent oxidation, resistance. 310 is also very ductile,, and has good weldability, enabling its widespread usage in, many applications. Stainless steel, 310S contains less carbon than, 310 to minimize carbide, precipitation.
Type 310S may be, used in atmospheres containing, moderate amounts of sulfur, because of high chromium and, medium nickel contents. It is not, usually recommended for liquid, quenching., Main Application: paper, production plant, heat recuperator, tubing, combustion chambers,, molten salt applications, thermo, wells, equipment to handle, sulfite liquors and gas turbines,, furnace parts, oil burner parts,, welding filler wire and electrodes.
TP 316 TP 316Ti, Stainless steel 316 is an austenitic, grade second only to 304 in, commercial importance. Type 316, contains molybdenum that gives, it improved corrosion resistance,, increased strength at elevated, temperatures and resistance to, pitting from chloride ion solutions., It has good resistance to oxidation, up to 900°C (1650°F). Type 316, has variety of uses especially in, marine applications due to the, materials high corrosion resistance., Type 316H has carbon content, between 0.04% - 0.10%.
This, makes the steel more suitable for, use in applications where elevated, temperatures are present. 316H, is sometimes used for structural, and pressure containing, applications at temperatures, above about 500°C (900°F)., Type 316L has the same,
TP 304, Stainless steel 304 is an, austenitic grade that can be, severely deep drawn. This, property has resulted in 304, being the dominant grade used, in applications like sinks and, saucepans.
Type 304L is, probably the world’s most, common stainless steel. The L, stands for Low and refers to the, carbon content. 0.035% is the, maximum allowable carbon, content in 304L. Low carbon, content ensures better ductility, and avoids the intergranular, corrosion. Type 304H is austenitic, chromium-nickel steel alloy with, high carbon content, which, delivers increased, tensile and, yield strength.
The H in 304H, stands for High carbon content., 304H must contain carbon, between 0.04% - 0.10%., It is used where elevated, temperatures are present., Main Application: pressure vessels,, oil refining, heat exchangers,, pipelines and condensers,, chemical equipment, brewery,, dairy, food and pharmaceutical, production equipment.
