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STUDBOLTSÂ HEX HEAD BOLTÂ HEAVY HEX NUTÂ SCREWS
Hastelloy G-50
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| Chemical Requirement |
| UNS N06950 |
| Type |
C |
Ni |
Cr |
Fe |
Mo |
Other |
G-50 |
0.015 max |
50.0min |
19.0-21.0 |
15.0-20.0 |
8.0-10.0 |
2.5maxCo;1.0maxW
0.5maxCu |
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Material Notes:
Developed as a lower cost alternative to Hastelloy C-276 for use by producers of sour gas. Improved corrosion resistance compared to G-3 in service with high hydrogen disulfide concentrations in combination with carbon dioxide, chloride, etc. Its corrosion resistance at elevated temperatures falls between G-3 and C-276 in 15% HCl and in hydrogen sulfide sress corrosion cracking tests. |
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| Physical Properties |
Metric |
English |
Comments |
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Density |
8.33 g/cc |
0.301 lb/in³ |
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Mechanical Properties
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Hardness, Brinell |
290 |
290 |
 Estimated from Rockwell C for Brinell 10 mm ball/3000 kg load |
Hardness, Knoop |
345 |
345 |
 Estimated from Rockwell C |
Hardness, Rockwell A |
66 |
66 |
 Estimated from Rockwell C |
Hardness, Rockwell C |
Max 31 |
Max 31 |
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Hardness, Vickers |
300 |
300 |
 Estimated from Rockwell C |
Tensile Strength, Ultimate |
Min 760 MPa |
Min 110000 psi |
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Tensile Strength, Yield |
700 - 860 MPa |
102000 - 125000 psi |
 0.2% offset |
Elongation at Break |
Min 20 % |
Min 20 % |
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Modulus of Elasticity |
192 GPa |
27800 ksi |
 Room Temp |
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