Active Member
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[China]
Address: #888 xingrong road, jiading district, Shanghai
Contact name:Frank
Shanghai Powermax Fastener Co., Ltd. |
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A563 Grade A Carbon steel black oxide with oil Heavy hex Nuts
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.
A563 Grade A: Carbon steel hex or heavy nuts.
A563 Grade B: Carbon steel hex or heavy nuts.
A563 Grade C:Quenched and tempered carbon steel heavy hex nuts.
A563 Grade DH:Quenched and tempered carbon steel heavy hex nuts.
NOTE: There are other types of A563. The one listed here is the one we receive the most requests for. For information on other types, please contact us.
A563 MECHANICAL PROPERTIES | ||||||
Grade | Marking | Style | Size | Proof Load, ksi | Hardness, HBN | |
Plain | Galvanized | |||||
A | not required | hex | 1/4" - 1-1/2" | 90 | 68 | 116 - 302 |
heavy hex | 1/4" - 4" | 100 | 75 | 116 - 302 | ||
B | not required | heavy hex | 1/4" - 1" | 133 | 100 | 121 - 302 |
heavy hex | 1-1/8" - 1-1/2" | 116 | 87 | 121 - 302 | ||
C | 3 circumferential marks | heavy hex | 1/4" - 4" | 144 | 144 | 143 - 352 |
DH | DH | heavy hex | 1/4" - 4" | 175 | 150 | 148 - 352 |
A563 CHEMICAL PROPERTIES | ||
Element | A, B & C | DH |
Carbon | 0.55% max | 0.2 - 0.55% |
Manganese |
| 0.60% |
Phosphorus, max | 0.12% | 0.04% |
Sulfur, max | 0.15% | 0.05% |
