Hastelloy C276 CL2 UNS NO10276 B622 Steel Pipe

Environment

Concentration
(% by weight)

Test
Temperature

Penetration Rate (per year)

°F

°C

Unwelded**

As-welded***

Welded and
heat-treated**

mils

mm

mils

mm

mils

mm

Formic Acid
Hydrochloric Acid
Hydrochloric Acid
Hydrochloric Acid
Hydrochloric Acid
Sulfuric Acid
Sulfuric Acid

20
10
10
10+0.5 NaOCl
3.5+8 Fe Cl3
10
85

Boiling
150
167
167
190
Boiling
167

Boiling
66
75
75
88
Boiling
75

4.8
21.
40.
46.
--
15.
17.

0.12
0.53
1.02
1.17
--
0.38
0.43

3.5
20.
50.
50.
5.
14.
17.

0.09
0.51
1.27
1.27
0.13
0.36
0.43

3.60
21.
--
--
--
18.
--

0.09
0.53
--
--
--
0.46
--

Physical Properties

°F

British Units

°C

Metric Units

Density

72

0.321 lb./in.(3)

22

8.89 g/cm(3)

Melting Range

2415-
2500

1323-
1371

Electrical
Resistivity

75

51 microhm-in.

24

1.30 microhm-m

Mean Coefficient
of Thermal
Expansion

75-200

6.2 microin./in.-°F

24-93

11.2 X 10(-6)m/m-K

75-400

6.7 microin./in.-°F

24-204

12.0 X 10(-6)m/m-K

75-600

7.1 microin./in.-°F

24-316

12.8 X 10(-6)m/m-K

75-800

7.3 microin./in.-°F

24-427

13.2 X 10(-6)m/m-K

75-1000

7.4 microin./in.-°F

24-538

13.4 X 10(-6)m/m-K

75-1200

7.8 microin./in.-°F

24-649

14.1 X 10(-6)m/m-K

75-1400

8.3 microin./in.-°F

24-760

14.9 X 10(-6)m/m-K

75-1600

8.8 microin./in.-°F

24-871

15.9 X 10(-6)m/m-K

75-1700

8.9 microin./in.-°F

24-927

16.0 X 10(-6)m/m-K

Thermal
Conductivity

-270

50 Btu-in/ft²-hr-°F

-168

7.2 W/m-K

-100

60 Btu-in/ft²-hr-°F

-73

8.6 W/m-K

0

65 Btu-in/ft²-hr-°F

32

9.4 W/m-K

100

71 Btu-in/ft²-hr-°F

38

10.2 W/m-K

200

77 Btu-in/ft²-hr-°F

93

11.1 W/m-K

400

90 Btu-in/ft²-hr-°F

204

13.0 W/m-K

600

104 Btu-in/ft²-hr-°F

316

15.0 W/m-K

800

117 Btu-in/ft²-hr-°F

427

16.9 W/m-K

1000

132 Btu-in/ft²-hr-°F

538

19.0 W/m-K

1200

145 Btu-in/ft²-hr-°F

649

20.9 W/m-K

1400

159 Btu-in/ft²-hr-°F

760

22.9 W/m-K

1600

173 Btu-in/ft²-hr-°F

871

24.9 W/m-K

1800

185 Btu-in/ft²-hr-°F

982

26.7 W/m-K

2000

195 Btu-in/ft²-hr-°F

1093

28.1 W/m-K

Form

Condition

Test Temp,
°F(°C)

Average Dynamic Modulus of
Elasticity,10(6) psi (GPa)

Plate

Heat-treated
at 2050 °F
(1121 °C),
Rapid Quenched

Room

29.8 (205)

400 (204)

28.3 (195)

600 (316)

27.3 (188)

800 (427)

26.4 (182)

1000 (538)

25.5 (176)

Form

Hardness,
Rockwell

Sheet

Rb 90

Plate

Rb 87

Form

Condition

Test
Temp.,
°F(°C)

Ultimate
Tensile
Strength
ksi (MPa)

Yield
Strength at
0.2% offset
ksi (MPa)

Elongation
in 2" percent

Sheet, 0.063 to 
0.187" Thick

Heat treated at
2050 °F 
Rapid Quenched

400 (204)
600 (316)
800 (427)
1000 (538)

100.8 (695)
97.0 (669)
95.0 (655)
88.9 (613)

42.1 (290)
37.7 (260)
34.8 (240)
33.8 (233)

56
64
65
60

Plate, 3/16 to
1.000" Thick

Heat treated at
2050 °F 
Rapid Quenched

400 (204)
600 (316)
800 (427)
1000 (538)

98.9 (682)
94.3 (650)
91.5 (631)
87.2 (601)

38.2 (263)
34.1 (235)
32.7 (235)
32.8 (226)

61
66
60
59

Plate, 1.000"
Thick

Heat treated at
2050 °F 
Rapid Quenched

Room
600 (316)
800 (427)

113.9 (785)
96.3 (664)
94.8 (654)

52.9 (365)
36.2 (250)
30.5 (210)

59
63
61

Test Temperature,
°F(°C)

Average Oxidation Rate per 100-hour test period

100 hours,continuous
mils mm

100 hours,intermittent
mils mm

1800 (982)

0.11

0.003

0.11

0.003

1900 (1038)

0.22

0.006

0.18

0.005

2000 (1093)

1.62

0.041

2.88

0.073