Hastelloy

Hastelloy

Hastelloy Alloy composition and price per kg

Hastelloy Steel grades at a glance with ASTM standard specification and equivalent chart

Hastelloy alloy is a nickel based alloy. It comes in primarily two groups; one with more molybdenum and the other with more chromium. Both are called the Hastelloy. They are all exceptionally resistant to strong oxidizing solutions and have high durability in reducing agents. They are also resistant to intergranular corrosion because of the low carbon content and the less carbide precipitation with welding. The Hastelloy application list is longer. There are different forms and shapes of products manufactured with different standards that are used in a variety of applications. They are used in sour gas wells, waste treatment plants, chemical processing components, pulp and paper industries, reaction vessels in chemical plants, heat exchangers, fans and in food processing equipment as well. The Hastelloy properties are unique in that they are very much resistant to oxidation and reduction; they perform well under cryogenic temperatures and in high temperatures, resistant to wet chlorine gas, resistant to most chloride and chlorine derivatives and so on. The Hastelloy price per kg differs from product to product and you can get a full price list from us. There are many Hastelloy advantages over ordinary metal and other alloys. The resistance to localized corrosion is very high along with resistance to uniform corrosion. The resistance is also good against most salts and brackish waters. The Hastelloy abbreviation is used in the metal industry mostly instead using the full form nickel chromium molybdenum alloys. The Hastelloy alloy composition includes molybdenum, chromium, iron, tungsten, cobolt, manganese, copper, vanadium, phosphorus, silicon and sulfur. Depending on the grade and standards of the alloy, the composition differs. Each of these classes and grades has specific characteristics and applications. The Hastelloy suppliers sell all different grades and the different products as well. The products range from fasteners to pipes and bolts to contour rings. Other then Hastelloy, under the superalloy family many grades are incuding such as Inconel & Monel.

Hastelloy Products

Hastelloy Alloy price per kg

Price US $56/Kg

Hastelloy Grades

Hastelloy Alloy ASTM Standard

Alloy UNS Bars Pipes

C-4

N06455

ASTM B574/ B575/ B619

B622 / B619 / SB 619 / B626 / SB 626

C-22

N06022

ASTM B564/ B472/ B574

B622 / B619 / SB 619/ B626 / SB 626

C-2000

N06200

ASTM B564/ B472/ B574

B622 / B619 / SB 619/ B626 / SB 626

G-30

N06030

ASTM B472/ B581

B622 / B619 / SB 619/ B626 / SB 626

G-35

N06035

ASTM B564/ B472/ B574

B622 / B619/ SB 619 / B626 / SB 626

C-276

N10276

ASTM B564/ B472/ B574

B622 / B619 / SB 619/ B626 / SB 626
Hastelloy X N06002 ASTM B564/ B472/ B574 B622 / B619 / SB 619 B626 / SB 626
HAYNES ® HR-120, NAS H38X N08120   B407 / B514 / B515

Hastelloy equivalent

CES Name USA Werkstoff Nr.
Alloy Name UNS WNR
B-2 N10665 DIN 2.4617
C N10002  
C-4 N06455 DIN 2.4610
C-276 N10276 DIN 2.4819
G N06007  
G-3 N06985 DIN 2.4619
N N10003  
S N06635  
W N10004  
X N06002 DIN 2.4665

Specification of Hastelloy

CORROSION RESISTANT GRADES

HEAT RESISTING GRADES

Hastelloy Temperature Range

HASTELLOY® B-3® alloy 400 – 450 Deg C (750 – 840 Degree F)
C-22 400 - 450Deg C (750 – 840 Degree F)
C-276 870 – 1230Deg C (1600 – 2250 Degree F)
® N alloy 704 to 871Deg C (1300 to 1600 Degree F)
HAYNES® 25 alloy 980Deg C (1800 Degree F)
HAYNES® 188 alloy 1095Deg C (2000 Degree F)

Hastelloy Alloy Applications & Uses

  • Chemical processing plants
  • Expansion bellow
  • Nuclear plants & processing
  • Industrial equipment

Hastelloy Composition

Alloy Type Cr% C% Co% W% Mo% V% Ai% Ti% Nb % Fe% Cu% Ni% Other %
Alloy B 0.6 0.1 1.25 - 28 0.3 - - - 5.5 - rest / bal Mn 0.80; Si 0.70
Alloy B2 1 0.02 1 - 26.0-30.0 - - - - 2 - rest / bal Mn 1.0, Si 0.10
Alloy C276 14.0-16.5 0.02 2.5 3.0-4.5 15.0-17.0 0.35 - - - 4.0-7.0 - rest / bal Mn 1.0; Si 0.05
Alloy X 22 0.1 1.5 0.6 9 - - 18.5 - - - rest / bal Mn 0.6; Si 0.60
Alloy C 16 0.07 1.25 40 17 0.3 - - - 5.75 - rest / bal Mn 1.0; Si 0.70
Alloy C4 14.0-18.0 0.015 2 - 14.0-17.0 - - 0..70 - 3 - rest / bal Mn 1.0 ; Si 0.08
Alloy N 7 0.06 0.25 0.2 16.5 - - - - 3 0.1 rest / bal Mn 0.40; Si 0.25; B 0.01
Alloy S 15.5 0.02 2 1 14.5 0.6 0.2 - - 3 - rest / bal Mn 0.50; Si 0.40; B0.0009; La 0.02
Alloy F 22 0.02 1.25 0.5 6.5 - - - 2.1 21 - rest / bal Mn 1.50; Si 0.50
Alloy G 21.0-23.5 0.05 2.5 1 5.5-7.5 - - - 1.7-2.5 18.0-21.0 1.5-2.5 rest / bal Mn 1.0-2.0; P0.04; Si 1.0; 
Alloy G2 23.0-26.0 0.03 - - 5.0-7.0 - - 0.70-1.50 - rest / bal 0.70-1.20 47.0-52.0 Mn 1.0; Si 1.0
Alloy W 5 0.06 1.25 - 24.5 - - - - 5.5 - rest / bal Mn 0.050; Si 0.50

Properties of Hastelloy Alloy

Corrosion Resistance comparison between most common steel grades

Alloy name Critical Pitting Temp
in Acidified 6% FeCl3
Acidified 6% FeCl3 Critical Crevice Temperature
°F °C °F °C
316L 59 15 32 0
254SMO 140 60 86 30
625 212 100 104 40
C-276 >302 >150 131 55
C-22® >302 >150 176 80

Corrosion Cracking comparison

Grade Cracking Timing
316L 2 h
254SMO 24 h
625 No Cracking in 1,008 h
C-276 No Cracking in 1,008 h
C-22® No Cracking in 1,008 h

Seawater Resistance comparison

Grade Quiescent Flowing
No. of Attacked Sites Max. Depth No. of Attacked Sites Max. Depth
316L A:2, B:2 A:1.33, B:2.27 A:2, B:2 A:0.48, B:0.15
254SMO A:2, B:2 A:0.76, B:1.73 A:2, B:2 A:0.01, B:<0.01
625 A:1, B:2 A:0.18, B:0.04 A:2, B:2 A:<0.01, B:<0.01
C-276 A:1, B:1 A:0.10, B:0.13 A:0, B:0 A:0, B:0
C-22® A:0, B:0 A:0, B:0 A:0, B:0 A:0, B:0

Hardness full form:

HRB = Hardness Rockwell “B".

Hastelloy Grade Sheets HRB Plates HRB
C22 93 95
C276 90 87
N 96 -
X 54 54

For detailed information please refer https://haynesintl.com/alloys/alloy-portfolio_#High-temperature-Alloys

Hastelloy - High-temperature Alloy

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