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ASME A563 Carbon Steel Grade DH Nuts, Alloy Steel Hex Nuts, ASTM A563 Grade C3 Nuts, Grade DH3 Nuts Manufacturer in Mumbai, India.
Production, Supply, Stock Range of A563 Nuts
Standard Specification for Carbon and Alloy Steel Nuts
The specification for ASTM A563 covers the chemical and mechanical requirements for eight grades of carbon and alloy steel nuts for general structural and mechanical uses on bolts, studs, and other externally threaded parts. The requirements for any grade of nut may, at the supplier’s option, and with notice to the purchaser, be fulfilled by furnishing nuts of one of the stronger grades specified herein unless such substitution is barred in the inquiry and purchase order.
Grades
| A | Carbon steel, hex or hvy hex |
| B | Carbon steel, hex or hvy hex |
| C | Carbon steel, quenched and tempered, hvy hex |
| D | Carbon steel, quenched and tempered, hvy hex |
| DH | Carbon steel, quenched and tempered, hvy hex |
| C3 | Weathering steel, quenched and tempered, hvy hex |
| DH3 | Weathering steel, quenched and tempered, hvy hex |
ASTM A563 Nuts Chemical Properties
| Elements | Grades O, A, B, C | D | DH |
| Carbon | 0.55% max | 0.55% max | 0.20 – 0.55% |
| Manganese, min | 0.30% | 0.60% | |
| Phosphorus, max | 0.12% | 0.04% | 0.04% |
| Sulfur, max | 0.15%* | 0.05% | 0.05% |
| * For grades O, A and B a sulfur content of 0.23% max is acceptable with the purchasers approval | |||
| ** For grades D and DH a sulfur content of 0.05 – 0.15% is acceptable provided the manganese is 1.35% min | |||
ATSM A563 Nuts Mechanical Properties
| Grade | Style | Size, in. | Proof Load, ksi | Hardness, HBN | |
| Plain | Galvanized | ||||
| A | Hex | 1/4 – 1-1/2 | 90 | 68 | 116 – 302 |
| Heavy Hex | 1/4 – 4 | 100 | 75 | 116 – 302 | |
| B | Heavy Hex | 1/4 – 1 | 133 | 100 | 121 – 302 |
| Heavy Hex | 1-1/8 – 1- 1/2 | 116 | 87 | 121 – 302 | |
| C / C3 | Heavy Hex | 1/4 – 4 | 144 | 144 | 143 – 352 |
| D | Heavy Hex | 1/4 – 4 | 150 | 150 | 248 – 352 |
| DH / DH3 | Heavy Hex | 1/4 – 4 | 175 | 150 | 248 – 352 |
ASTM A563 Nuts Manufacturer, A563 Nuts Supplier in India- ASME, DIN, AS, BS
Torq Bolt is a leading manufacturer and exporter of A563 Nuts in India. Our inventory includes astm A563 Nuts in many grades including 12 point nuts, threaded rod/bar, studs, double end studs, tap end studs, studbolts are readily available in all standard sizes and schedules.
