ASTM A194 Grade 16 Nuts
ASTM A194 Grade 16 Nuts
ASTM A194 Grade 16 Nuts
Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or both.
ASTM A194 specification covers a variety of carbon, alloy, and martensitic stainless steel nuts in the size range 1/4 through 4 in. and metric M6 through M100 nominal. It also covers austenitic stainless steel nuts in the size range 1/4 in. and M6 nominal and above. These nuts are intended for high-pressure or high-temperature service, or both.
ASTM A194 Grade 16 Nut
| Grade | Tensile Class | Raw Material |
|---|
ASTM A194 Grade 16 Chemical Components
| Grade | Material | UNS Number |
C, % | Mn, % | Ph, % | S, % | Si, % | Cr, % | Ni, % | Mo, % | Ti, % | Cb & Ta, % | N, % | Other Elements, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 16 | Chromium Molybdenum Vanadium | 0.36-0.47 | 0.45-0.70 | 0.035 | 0.040 | 0.15-0.35 | 0.80-1.15 | 0.50-0.65 | - | - | - | Vanadium 0.25-0.35 AluminumB 0.015 |
ASTM A194 Grade 16 Hardness Requirement
| Grade & Type | Brinell Hardness | Rockwell Hardness | |
|---|---|---|---|
| C Scale | B Scale | ||
| 2 | 159-352 | - | 84 min |
ASTM A194 Grade 16 Proof Load (Inch Series)
| Nominal Size, inch | Threads per inch | Stress Area inch | Proof Load, lbf | |
|---|---|---|---|---|
| All Types of Grade 8 | ||||
| Heavy Hex | Hex | |||
| 1/4" | 20 | 0.0316 | 5570 | 4770 |
| 5/16" | 18 | 0.0524 | 9170 | 7860 |
| 3/8" | 16 | 0.0774 | 13560 | 11620 |
| 7/16" | 14 | 0.1063 | 18600 | 15940 |
| 1/2" | 13 | 0.1419 | 24830 | 21280 |
| 9/16" | 12 | 0.1820 | 31850 | 27300 |
| 5/8" | 11 | 0.2260 | 39550 | 33900 |
| 3/4" | 10 | 0.3340 | 58450 | 50100 |
| 7/8" | 9 | 0.4620 | 80850 | 69300 |
| 1" | 8 | 0.606 | 106000 | 90900 |
| 1 1/8" | 8 | 0.7900 | 138200 | 118500 |
| 1 1/4" | 8 | 1.0000 | 175000 | 150000 |
| 1 3/8" | 8 | 1.2330 | 215800 | 185000 |
| 1 1/2" | 8 | 1.492 | 261100 | 223800 |
ASTM A194 Grade 16 Marking
| Grade Type | Hot Forged or Cold Punched Nuts | Nuts Machined from Bar Stock |
|---|---|---|
| 16 | 16 | 16B |
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