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Product Details:
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| Material: | A194 2H | Size: | 5/8" |
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| Finish: | HDG,Black ,ZP Etc | Dimension: | ASME/ANSI B 18.2.2 |
| Thread: | UNC,UNF,UN8 | Thread Standard: | ASME B1.1 |
| Product Name: | ASTM A194 Grade 2H Quenched And Tempered Carbon Steel Zinc Plated Heavy Hex Nuts | Sample: | All Sample Free |
| Highlight: | A194 2H Heavy Hex Nut,Zinc Plated a194 2h nuts,5 / 8" Heavy Hex Nut |
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ASTM A194 Grade 2H Quenched and tempered carbon steel zinc plated heavy hex nuts
The ASTM A194 specification covers a variety of carbon, alloy, and stainless steel nuts. Ranging in sizes ¼ through 4 inches, 2H nuts are intended for high-pressure or high-temperature applications in a plain (uncoated) finish. To identify A194 nuts, note the 2H on the nut’s face. A194 2H nuts can be coated. Zinc coated nuts will have a ZN marked after the grade (example: 2HZN). A194 2H nuts are often paired with A193 B7 steel or F1554-105 steel, typically as all thread studs, hex bolts, or double end rods. Often, you will find these nuts in high strength applications in fields including oil and gas.
SIZE: 1/4" - 4", M6 -M100 .
STANDARD: ASME B18.2.2
THREAD: ASME B1.1 , UNC, UNF, UN8
FINISHED: Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G.
A194 Grade 2:Carbon steel heavy hex nuts.
A194 Grade 2H:Quenched and tempered carbon steel heavy hex nuts.
A194 Grade 7:Quenched and tempered alloy steel heavy hex nuts.
A194 Grade 7L:Quenched and tempered alloy steel heavy hex nuts, Charpy impact tested.
A194 Grade 8:Stainless AISI 304 heavy hex nuts.
A194 Grade 8M:Stainless AISI 316 heavy hex nuts.
NOTE: There are other grades of A194. Those listed here are the ones we receive the most requests for. For information on other types, Please contact us.
| A194 CHEMICAL PROPERTIES | ||||
| Element | 2, 2H | 7 | 8 (AISI 304) | 8M (AISI 316) |
| Carbon | 0.4% min | 0.37 - 0.49% | 0.08% max | 0.08% max |
| Manganese | 1.0% max | 0.65 - 1.1% | 2.0% max | 2.0% max |
| Phosphorus, max | 0.04% | 0.04% | 0.05% | 0.05% |
| Sulfur, max | 0.05% | 0.04% | 0.03% | 0.03% |
| Silicon | 0.40% max | 0.15 - 035% | 1.0% max | 1.0% max |
| Chromium | 0.75 - 1.2% | 18.0 - 20.0% | 16.0 - 18.0% | |
| Nickel | 8.0 - 11.0% | 10.0 - 14.0% | ||
| Molybdenum | 0.15 - 0.25% | 2.0 - 3.0% | ||
| A194 MECHANICAL PROPERTIES | ||||||
| Grade | Marking | Size | Tempering Temp.Fahrenheit | Proof Load Stress, ksi | Hardness Brinell | |
| Min | Max | |||||
| 2 | 2 | 1/4" - 4" | 0 | 150 | 159 | 352 |
| 2H | 2H | 1/4" - 1-1/2" | 850 | 175 | 248 | 327 |
| 2H | 2H | 1-1/2" - 4" | 850 | 175 | 212 | 327 |
| 7 | 7 | 1/4" - 4" | 1100 | 175 | 248 | 327 |
| 8 | 8 | 1/4" - 4" | - | 80 | 126 | 300 |
| 8M | 8M | 1/4" - 4" | - | 80 | 126 | 300 |
Notes:
The markings shown for all grades of A194 nuts are for cold-formed and hot-forged nuts. When nuts are machined from bar stock, the nut must additionally be marked with the letter B. The letters H & M indicate heat-treated nuts.
Properties shown are those of coarse and 8-pitch thread heavy hex nuts.
Contact Person: Mr. Frank
Tel: 18516086900
