Home / HASTELLOY® C-2000® alloy

Principal FeaturesNominal CompositionIso-Corrosion DiagramsComparative 0.1 mm/y Line PlotsSelected Corrosion DataResistance to Pitting and Crevice CorrosionResistance to Stress Corrosion CrackingResistance to Seawater Crevice CorrosionCorrosion Resistance of WeldsPhysical PropertiesImpact StrengthTensile Strength and ElongationHardnessWelding and FabricationSpecifications and CodesDisclaimerAlloy Brochure

Principal Features

A copper-bearing Ni-Cr-Mo material with exceptional resistance to sulfuric acid

HASTELLOY® C-2000® alloy (UNS N06200) is unique among the versatile nickel-chromium-molybdenum materials in having a deliberate copper addition. This provides greatly enhanced resistance to sulfuric acid. It also has a high chromium content, to maximize its resistance to oxidizing chemicals and process streams contaminated with ferric ions and dissolved oxygen.

Like other nickel alloys, it is ductile, easy to form and weld, and possesses exceptional resistance to stress corrosion cracking in chloride-bearing solutions (a form of degradation to which the austenitic stainless steels are prone). It is able to withstand a wide range of oxidizing and non-oxidizing chemicals, and exhibits outstanding resistance to pitting and crevice attack in the presence of chlorides and other halides.

HASTELLOY® C-2000® alloy is available in the form of plates, sheets, strips, billets, bars, wires, pipes, tubes, and covered electrodes. Typical chemical process industry (CPI) applications include reactors and heat exchangers.

*Please contact our technical support team if you have technical questions about this alloy.

Nominal Composition

Weight %
Nickel 59 Balance
Cobalt 2 max.
Chromium 23
Molybdenum 16
Copper 1.6
Iron 3 max.
Manganese 0.5 max.
Aluminum 0.5 max.
Silicon 0.08 max.
Carbon 0.01 max.

Iso-Corrosion Diagrams

Each of these iso-corrosion diagrams was constructed using numerous corrosion rate values, generated at different acid concentrations and temperatures. The blue line represents those combinations of acid concentration and temperature at which a corrosion rate of 0.1 mm/y (4 mils per year) is expected, based on laboratory tests in reagent grade acids. Below the line, rates under 0.1 mm/y are expected. Similarly, the red line indicates the combinations of acid concentration and temperature at which a corrosion rate of 0.5 mm/y (20 mils per year) is expected. Above the line, rates over 0.5 mm/y are expected. Between the blue and red lines, corrosion rates are expected to fall between 0.1 and 0.5 mm/y.

Comparative 0.1 mm/y Line Plots

To compare the performance of HASTELLOY C-2000 alloy with that of other materials, it is useful to plot the 0.1 mm/y lines. In the following graphs, the lines for C-2000 alloy are compared with those of C-22 alloy, C-276 alloy, 625 alloy, 254SMO alloy, and 316L stainless steel, in hydrochloric and sulfuric acids. Note the superiority of C-2000 alloy in hydrochloric acid at concentrations up to 10%, and in sulfuric acid at concentrations up to 80%. The hydrochloric acid concentration limit of 20% is the azeotrope, above which corrosion tests are less reliable.

Selected Corrosion Data

Hydrobromic Acid

Conc.Wt.% 50°F 75°F 100°F 125°F 150°F 175°F 200°F 225°F Boiling
10°C 24°C 38°C 52°C 66°C 79°C 93°C 107°C
1 - - - - - - - - 0.01
1.5 - - - - - - - - 0.02
2 - - - - <0.01 <0.01 <0.01 - 0.09
2.5 - - - - - <0.01 0.01 - 0.34
3 - - - - <0.01 <0.01 0.02 - 0.36
3.5 - - - - - 0.01 0.65 - 1.61
4 - - - - <0.01 0.01 1.24 - 2.15
4.5 - - - - <0.01 0.01 1.48 - 3.98
5 - - - 0.01 <0.01 <0.01 1.37 - 4.23
7.5 - - <0.01 <0.01 0.57 1.12 - - -
10 - - <0.01 0.28 0.65 1.54 - - -
15 - - 0.18 0.38 0.70 1.69 - - -
20 - - 0.16 0.36 0.69 1.46 - - -

All corrosion rates are in millimeters per year (mm/y); to convert to mils (thousandths of an inch) per year, divide by 0.0254.
Data are from Corrosion Laboratory Jobs 71-97, 26-99, 49-99, 27-02, and 37-02.
All tests were performed in reagent grade acids under laboratory conditions; field tests are encouraged prior to industrial use.

Hydrochloric Acid

Conc.Wt.% 50°F 75°F 100°F 125°F 150°F 175°F 200°F 225°F Boiling
10°C 24°C 38°C 52°C 66°C 79°C 93°C 107°C
1 - - - - - - - - 0.01
1.5 - - - - - - - - 0.02
2 - - - - <0.01 <0.01 <0.01 - 0.09
2.5 - - - - - <0.01 0.01 - 0.34
3 - - - - <0.01 <0.01 0.02 - 0.36
3.5 - - - - - 0.01 0.65 - 1.61
4 - - - - <0.01 0.01 1.24 - 2.15
4.5 - - - - <0.01 0.01 1.48 - 3.98
5 - - - 0.01 <0.01 <0.01 1.37 - 4.23
7.5 - - <0.01 <0.01 0.57 1.12 - - -
10 - - <0.01 0.28 0.65 1.54 - - -
15 - - 0.18 0.38 0.70 1.69 - - -
20 - - 0.16 0.36 0.69 1.46 - - -

All corrosion rates are in millimeters per year (mm/y); to convert to mils (thousandths of an inch) per year, divide by 0.0254.
Data are from Corrosion Laboratory Jobs 8-95, 11-95, 18-95, 36-95, 3-96, 9-96, 16-96, and 25-96.
All tests were performed in reagent grade acids under laboratory conditions; field tests are encouraged prior to industrial use.

Hydrofluoric Acid

Conc.Wt.% 50°F 75°F 100°F 125°F 150°F 175°F 200°F 225°F Boiling
10°C 24°C 38°C 52°C 66°C 79°C 93°C 107°C
1 - - 0.01 0.03 0.08 0.18 - - -
5 - - 0.02 0.09 0.33 0.57 - - -
10 - - 0.06 0.22 0.56 0.99 2.27 - -
20 - - 0.21 0.48 0.68 0.67 0.74 - -
30 - - 0.25 0.62 1.61 1.34 1.46 - -

All corrosion rates are in millimeters per year (mm/y); to convert to mils (thousandths of an inch) per year, divide by 0.0254.
Data are from Corrosion Laboratory Jobs 3-99, 24-99, and 46-99.
All tests were performed in reagent grade acids under laboratory conditions; field tests are encouraged prior to industrial use.
Hydrofluoric acid is known to cause internal, as well as external, attack of the nickel alloys; these values signify only the amount of external attack encountered during laboratory testing.

Nitric Acid

Conc.Wt.% 50°F 75°F 100°F 125°F 150°F 175°F 200°F 225°F Boiling
10°C 24°C 38°C 52°C 66°C 79°C 93°C 107°C
10 - - - - - - - - -
20 - - - - - - - - 0.02
30 - - - - - - - - -
40 - - - - - 0.02 0.06 - 0.24
50 - - - - - 0.05 0.12 - 0.51
60 - - - - - 0.08 0.19 0.43 0.94
65 - - - - - - - - 1.00
70 - - - - - 0.10 0.29 0.59 1.66

All corrosion rates are in millimeters per year (mm/y); to convert to mils (thousandths of an inch) per year, divide by 0.0254.
Data are from Corrosion Laboratory Jobs 8-95 and 11-97.
All tests were performed in reagent grade acids under laboratory conditions; field tests are encouraged prior to industrial use.

Phosphoric Acid

Conc.Wt.% 125°F 150°F 175°F 200°F 225°F 250°F 275°F 300°F Boiling
52°C 66°C 79°C 93°C 107°C 121°C 135°C 149°C
50 - - <0.01 0.01 - - - - 0.03
60 - - <0.01 0.01 0.02 - - - 0.08
70 - - <0.01 0.01 0.02 0.07 - - 0.15
75 - - - - - - - - 0.84
80 - - <0.01 0.01 - 0.08 0.14 - 0.40
85 - - - - - 0.05 0.17 0.33 7.90

All corrosion rates are in millimeters per year (mm/y); to convert to mils (thousandths of an inch) per year, divide by 0.0254.
Data are from Corrosion Laboratory Jobs 19-95 and 64-96.
All tests were performed in reagent grade acids under laboratory conditions; field tests are encouraged prior to industrial use.

Sulfuric Acid

Conc.Wt.% 75°F 100°F 125°F 150°F 175°F 200°F 225°F 250°F 275°F 300°F 350°F Boiling
24°C 38°C 52°C 66°C 79°C 93°C 107°C 121°C 135°C 149°C 177°C
1 - - - - - - - - - - - -
2 - - - - - - - - - - - -
3 - - - - - - - - - - - -
4 - - - - - - - - - - - -
5 - - - - - - - - - - - -
10 - - - - <0.01 0.02 - - - - - 0.09
20 - - - - 0.01 0.03 - - - - - 0.18
30 - - - - 0.01 0.04 - - - - - 0.42
40 - - - - 0.01 0.05 0.72 - - - - 1.13
50 - - - <0.01 0.02 0.16 0.68 1.71 - - - 3.35
60 - - - <0.01 0.02 0.37 0.84 2.81 - - - 9.27
70 - - - 0.01 0.07 0.42 1.40 4.32 - - - -
80 - - - 0.06 0.28 0.99 1.62 2.37 - - - -
90 - - - 0.02 0.07 0.37 1.17 2.24 - - - -
96 - - - - 0.05 0.19 0.63 - - - - -

All corrosion rates are in millimeters per year (mm/y); to convert to mils (thousandths of an inch) per year, divide by 0.0254.
Data are from Corrosion Laboratory Jobs 8-95, 11-95, 18-95, 43-95, 9-96, 15-96, and 20-96.
All tests were performed in reagent grade acids under laboratory conditions; field tests are encouraged prior to industrial use.

Reagent Grade Solutions, mm/y

Chemical Conc. 100°F 125°F 150°F 175°F 200°F Boiling
38°C 52°C 66°C 79°C 93°C
Acetic Acid 99 38°C 52°C 66°C 79°C 93°C <0.01
Chromic Acid 10 38°C 52°C 66°C 79°C 93°C -
20 - - 0.61 - - -
Formic Acid 88 - - - - - 0.01
Hydrobromic Acid 2.5 - - <0.01 - 0.01 0.01
5 - - <0.01 - 0.01 0.15
7.5 - - - <0.01 <0.01 0.58
10 - - <0.01 <0.01 0.34 1.71
15 - - - 0.10 0.94 -
20 - - <0.01 0.61 0.86 -
25 <0.01 0.15 0.30 0.53 0.91 -
30 0.06 0.20 0.29 0.48 0.91 -
40 0.07 0.13 0.18 0.32 0.60 -
Hydrochloric Acid 1 - - - - - 0.01
2 - - <0.01 <0.01 <0.01 0.09
2.5 - - - <0.01 0.01 0.34
3 - - <0.01 <0.01 0.02 0.36
3.5 - - - 0.01 0.65 1.61
4 - - <0.01 0.01 1.24 -
4.5 - - <0.01 0.01 1.48 -
5 - 0.01 <0.01 <0.01 1.37 -
7.5 <0.01 <0.01 0.57 1.12 - -
10 <0.01 0.28 0.65 1.54 - -
15 0.18 0.38 0.70 1.69 - -
20 0.16 0.36 0.69 1.46 - -
Hydrofluoric Acid* 1 0.01 0.03 0.08 0.18 - -
5 0.02 0.09 0.33 0.57 - -
10 0.06 0.22 0.56 0.99 2.27 -
20 0.21 0.48 0.68 0.67 0.74 -
30 0.25 0.62 1.61 1.34 1.46 -
Nitric Acid 20 - - - - - 0.02
30 - - - - - 0.09
40 - - - 0.02 0.06 0.24
50 - - - 0.05 0.12 0.51
60 - - - 0.08 0.19 0.94
65 - - - - - 1.00
70 - - - 0.10 0.29 1.66
Phosphoric Acid 50 - - - <0.01 0.01 0.03
60 - - - <0.01 0.01 0.08
70 - - - <0.01 0.01 0.15
75 - - - - - 0.84
80 - - - <0.01 0.01 -
Sulfuric Acid 10 - - - <0.01 0.02 0.09
20 - - - 0.01 0.03 0.18
30 - - - 0.01 0.04 0.42
40 - - - 0.01 0.05 1.13
50 - - <0.01 0.02 0.16 -
60 - - <0.01 0.02 0.37 -
70 - - 0.01 0.07 0.42 -
80 - - 0.06 0.28 0.99 -
90 - - 0.02 0.07 0.37 -
96 - - - 0.05 0.19 -

*Hydrofluoric acid can also induce internal attack of nickel alloys; these values represent only external attack.

Resistance to Pitting and Crevice Corrosion

HASTELLOY® C-2000® alloy exhibits high resistance to chloride-induced pitting and crevice attack, forms of corrosion to which the austenitic stainless steels are particularly prone. To assess the resistance of alloys to pitting and crevice attack, it is customary to measure their Critical Pitting Temperatures and Critical Crevice Temperatures in acidified 6 wt.% ferric chloride, in accordance with the procedures defined in ASTM Standard G 48. These values represent the lowest temperatures at which pitting and crevice attack are encountered in this solution, within 72 hours. For comparison, the values for 316L, 254SMO, 625, C-276, and C-2000® alloys are as follows. Note that C-2000® alloy exhibits higher resistance to crevice attack than even C-276 alloy.

Alloy
Critical Pitting Temperaturein Acidified 6% FeCl3
Critical Crevice Temperaturein Acidified 6% FeCl3
°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-2000® 293 145 176 80

Other chloride-bearing environments, notably Green Death (11.5% H2SO4 + 1.2% HCl + 1% FeCl3 + 1% CuCl2) and Yellow Death (4% NaCl + 0.1% Fe2(SO4)3 + 0.021M HCl), have been used to compare the resistance of various alloys to pitting and crevice attack (using tests of 24 hours duration). In Green Death, the lowest temperature at which pitting has been observed in C-2000 alloy is 100°C. In Yellow Death, C-2000® alloy has not exhibited pitting, even at the maximum test temperature (150°C).The Critical Crevice Temperature of C-2000® alloy in Yellow Death is 95°C.

Resistance to Stress Corrosion Cracking

One of the chief attributes of the nickel alloys is their resistance to chloride-induced stress corrosion cracking. A common solution for assessing the resistance of materials to this extremely destructive form of attack is boiling 45% magnesium chloride (ASTM Standard G 36), typically with stressed U-bend samples. As is evident from the following results, the three nickel alloys, C-276, C-2000 and 625, are much more resistant to this form of attack than the comparative, austenitic stainless steels. The tests were stopped after 1,008 hours (six weeks).

Alloy Time to Cracking
316L 2 h
254SMO 24 h
625 No Cracking in 1,008 h
C-276 No Cracking in 1,008 h
C-2000® No Cracking in 1,008 h

Resistance to Seawater Crevice Corrosion

Seawater is probably the most common aqueous salt solution. Not only is it encountered in marine transportation and offshore oil rigs, but it is also used as a coolant in coastal facilities. Listed are data generated as part of a U.S. Navy study at the LaQue Laboratories in Wrightsville Beach, North Carolina (and published by D.M. Aylor et al, Paper No. 329, CORROSION 99, NACE International, 1999). Crevice tests were performed in both still (quiescent) and flowing seawater, at 29°C, plus or minus 3°C. Two samples (A & B) of each alloy were tested in still water for 180 days, and likewise in flowing water. Each sample contained two possible crevice sites. The results indicate that C-2000 alloy is very resistant to crevice corrosion in seawater.
Alloy Quiescent Flowing
No. of Sites Attacked Maximum Depthof Attack, mm No. of Sites Attacked Maximum Depthof Attack, mm
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-2000® A:0, B:0 A:0, B:0 A:0, B:0 A:0, B:0

Corrosion Resistance of Welds

To assess the resistance of welds to corrosion, Haynes International has chosen to test all-weld-metal samples, taken from the quadrants of cruciform assemblies, created using multiple gas metal arc (MIG) weld passes. Predictably, the inhomogeneous nature of weld microstructures leads generally to higher corrosion rates (than with homogeneous, wrought products). Nevertheless, HASTELLOY® C-2000® alloy exhibits excellent resistance to the key, inorganic acids, even in welded form, as shown in the following table:

Chemical Concentration Temperature Corrosion Rate
wt.% °F °C Weld Metal Wrought Base Metal
mpy mm/y mpy mm/y
H2SO4
 30 150 66 0.2 0.01 <0.1 <0.01
H2SO4
 50 150 66 0.3 0.01 <0.1 <0.01
H2SO4
 70 150 66 2.4 0.06 0.2 0.01
H2SO4
 90 150 66 2.9 0.07 0.6 0.02
HCl 5 100 38 0.1 <0.01 0.1 <0.01
HCl 10 100 38 2.1 0.05 <0.1 <0.01
HCl 15 100 38 2.4 0.06 7.0 0.18
HCl 20 100 38 8.0 0.20 6.3 0.16
HNO3
 30 Boiling 3.8 0.10 3.5 0.09

Physical Properties

Physical Property British Units Metric Units
Density RT
0.307 lb/in3
 RT
8.50 g/cm3
Electrical Resistivity RT 50.6 μohm.in RT 1.28 μohm.m
200°F 50.8 μohm.in 100°C 1.29 μohm.m
400°F 51.2 μohm.in 200°C 1.30 μohm.m
600°F 51.6 μohm.in 300°C 1.31 μohm.m
800°F 52.2 μohm.in 400°C 1.32 μohm.m
1000°F 52.9 μohm.in 500°C 1.34 μohm.m
1200°F 53.0 μohm.in 600°C 1.35 μohm.m
Thermal Conductivity RT
63 Btu.in/h.ft2.°F
 RT 9.1 W/m.°C
200°F
74 Btu.in/h.ft2.°F
 100°C 10.8 W/m.°C
400°F
88 Btu.in/h.ft2.°F
 200°C 12.6 W/m.°C
600°F
99 Btu.in/h.ft2.°F
 300°C 14.1 W/m.°C
800°F
114 Btu.in/h.ft2.°F
 400°C 16.1 W/m.°C
1000°F
133 Btu.in/h.ft2.°F
 500°C 18.0 W/m.°C
1200°F
162 Btu.in/h.ft2.°F
 600°C 21.6 W/m.°C
Mean Coefficient of Thermal Expansion 77-200°F 6.9 μin/in.°F 25-100°C 12.4 μm/m.°C
77-400°F 6.9 μin/in.°F 25-200°C 12.4 μm/m.°C
77-600°F 7.0 μin/in.°F 25-300°C 12.6 μm/m.°C
77-800°F 7.2 μin/in.°F 25-400°C 12.9 μm/m.°C
77-1000°F 7.4 μin/in.°F 25-500°C 13.2 μm/m.°C
77-1200°F 7.6 μin/in.°F 25-600°C 13.3 μm/m.°C
Thermal Diffusivity RT
0.10 ft2/h
 RT 0.025 cm2/s
200°F
0.11 ft2/h
 100°C
0.029 cm2/s
400°F
0.13 ft2/h
 200°C
0.033 cm2/s
600°F
0.14 ft2/h
 300°C
0.036 cm2/s
800°F
0.16 ft2/h
 400°C
0.040 cm2/s
1000°F
0.17 ft2/h
 500°C
0.043 cm2/s
1200°F
0.19 ft2/h
 600°C
0.047 cm2/s
Specific Heat RT 0.102 Btu/lb.°F RT 428 J/kg.°C
200°F 0.104 Btu/lb.°F 100°C 434 J/kg.°C
400°F 0.106 Btu/lb.°F 200°C 443 J/kg.°C
600°F 0.109 Btu/lb.°F 300°C 455 J/kg.°C
800°F 0.113 Btu/lb.°F 400°C 468 J/kg.°C
1000°F 0.121 Btu/lb.°F 500°C 486 J/kg.°C
Dynamic Modulus of Elasticity RT
30.0 x 106psi
 RT 207 GPa
600°F
27.5 x 106psi
 300°C 191 GPa
800°F
25.6 x 106psi
 400°C 180 GPa
1000°F 24.8 x 106psi 500°C 173 GPa
1200°F
23.5 x 106psi
 600°C 166 GPa
Melting Range 2422-2476°F - 1328-1358°C -

RT= Room Temperature

Impact Strength

Product Form Test Temperature Impact Strength
°F °C ft-lbf J
Plate RT RT 362 491
Plate -320 -196 419 568
Bar RT RT 369 500
Bar -320 -196 423 574

Impact strengths were generated using Charpy V-notch samples, machined from mill annealed material.

Tensile Strength and Elongation

Form Thickness/Bar Diameter TestTemperature 0.2% OffsetYield Strength Ultimate TensileStrength Elongation
in mm °F °C ksi MPa ksi MPa %
Sheet 0.063 1.6 RT RT 52 359 109 752 64
Sheet 0.063 1.6 200 93 46 317 107 738 66
Sheet 0.063 1.6 400 204 38 262 96 662 65
Sheet 0.063 1.6 600 316 34 234 92 634 68
Sheet 0.063 1.6 800 427 31 214 89 614 76
Sheet 0.063 1.6 1000 538 30 207 82 565 75
Sheet 0.063 1.6 1200 649 30 207 77 531 62
Plate 0.5 12.7 RT RT 50 345 110 758 68
Plate 0.5 12.7 200 93 46 317 105 724 68
Plate 0.5 12.7 400 204 35 241 97 669 72
Plate 0.5 12.7 600 316 31 214 92 634 70
Plate 0.5 12.7 800 427 28 193 88 607 72
Plate 0.5 12.7 1000 538 28 193 83 572 69
Plate 0.5 12.7 1200 649 28 193 76 524 78
Bar 1 25.4 RT RT 52 359 110 758 67
Bar 1 25.4 200 93 44 303 103 710 68
Bar 1 25.4 400 204 38 262 92 634 70
Bar 1 25.4 600 316 33 228 90 621 70
Bar 1 25.4 800 427 30 207 87 600 71
Bar 1 25.4 1000 538 27 186 82 565 72
Bar 1 25.4 1200 649 26 179 77 531 77

RT= Room Temperature

Hardness

Form Hardness, HRBW Typical ASTM Grain Size
Sheet 87 3 - 5
Plate 88 1 - 4
Bar 84 0 - 4

All samples tested in solution-annealed condition.
HRBW = Hardness Rockwell “B”, Tungsten Indentor.

Welding and Fabrication

HASTELLOY® C-2000® alloy is very amenable to the Gas Metal Arc (GMA/MIG), Gas Tungsten Arc (GTA/TIG), and Shielded Metal Arc (SMA/Stick) welding processes. For matching filler metals (i.e. solid wires and coated electrodes) that are available for these processes, and welding guidelines, please click here.

Wrought products of HASTELLOY® C-2000® alloy are supplied in the Mill Annealed (MA) condition, unless otherwise specified. This solution annealing procedure has been designed to optimize the alloy’s corrosion resistance and ductility. Following all hot forming operations, the material should be re-annealed, to restore optimum properties. The alloy should also be re-annealed after any cold forming operations that result in an outer fiber elongation of 7% or more. The annealing temperature for HASTELLOY® C-2000® alloy is 1149°C (2100°F), and water quenching is advised (rapid air cooling is feasible with structures thinner than 10 mm (0.375 in). A hold time at the annealing temperature of 10 to 30 minutes is recommended, depending on the thickness of the structure (thicker structures need the full 30 minutes). For more details concerning the heat treatment of HASTELLOY® C-2000® alloy, please click here.

HASTELLOY® C-2000® alloy can be hot forged, hot rolled, hot upset, hot extruded, and hot formed. However, it is more sensitive to strain and strain rates than the austenitic stainless steels, and the hot working temperature range is quite narrow. For example, the recommended start temperature for hot forging is 1232°C (2250°F) and the recommended finish temperature is 954°C (1750°F). Moderate reductions and frequent re-heating provide the best results, as described here. This reference also provides guidelines for cold forming, spinning, drop hammering, punching, and shearing. The alloy is stiffer than most austenitic stainless steels, and more energy is required during cold forming. Also, HASTELLOY® C-2000® alloy work hardens more readily than most austenitic stainless steels, and may require several stages of cold work, with intermediate anneals.

While cold work does not usually affect the resistance of HASTELLOY® C-2000® alloy to general corrosion, and to chloride-induced pitting and crevice attack, it can affect resistance to stress corrosion cracking. For optimum corrosion performance, therefore, the re-annealing of cold worked parts (following an outer fiber elongation of 7% or more) is important.

Specifications and Codes

Specifications

HASTELLOY® C-2000® alloy (N06200, W86200)
Sheet, Plate & Strip SB 575/B 575 P= 43
Billet, Rod & Bar SB 574/B 574B 472P= 43
Coated Electrodes SFA 5.11/ A 5.11 (ENiCrMo-17)DIN 2.4699(EL-NiCr23Mo16Cu)F= 43
Bare Welding Rods & Wire SFA 5.14/ A 5.14 (ERNiCrMo-17)DIN 2.4698(SG-NiCr23Mo16Cu)F= 43
Seamless Pipe & Tube SB 622/B 622P= 43
Welded Pipe & Tube SB 619/B 619SB 626/B 626P= 43
Fittings SB 366/B 366SB 462/B 462P= 43
Forgings SB 564/B 564SB 462/B 462P= 43
DIN 17744 No. 2.4675 NiCr23Mo16Cu
TÜV Werkstoffblatt 539Kennblatt 9679Kennblatt 9678Kennblatt 9677
Others NACE MR0175ISO 15156

 

Codes

HASTELLOY® C-2000® alloy (N06200, W86200)
ASME Section l -
Section lll Class 1 -
Class 2 -
Class 3 -
Section Vlll Div. 1
800°F (427°C)1
Div. 2 -
Section Xll -
B16.5
800°F (427°C)2
B16.34
800°F (427°C)3
B31.1 -
B31.3
800°F (427°C)1
VdTÜV (doc #) 844°F (450°C)4,#539

1Plate, Sheet, Bar, Forgings, fittings, welded pipe/tube, seamless pipe/tube
2Plate, Forgings, fittings, Bolting
3Plate, Bar, Forgings, seamless pipe/tube
4Plate, Sheet, Bar, Forgings

Disclaimer

Haynes International makes all reasonable efforts to ensure the accuracy and correctness of the data displayed on this site but makes no representations or warranties as to the data’s accuracy, correctness or reliability. All data are for general information only and not for providing design advice. Alloy properties disclosed here are based on work conducted principally by Haynes International, Inc. and occasionally supplemented by information from the open literature and, as such, are indicative only of the results of such tests and should not be considered guaranteed maximums or minimums.  It is the responsibility of the user to test specific alloys under actual service conditions to determine their suitability for a particular purpose.

For specific concentrations of elements present in a particular product and a discussion of the potential health affects thereof, refer to the Safety Data Sheets supplied by Haynes International, Inc.  All trademarks are owned by Haynes International, Inc., unless otherwise indicated.

Alloy Brochure

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