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Durelloy Threaded Bar is a precision rolled thread onto a heat treated alloy conforming to ASTM A 193-B-7 specifications. Durelloy Threaded Bar is delivered in a Brinell hardness of 280–300 for greater thread strength and wear resistance. The rolled threads guarantee strength and perfect fit for shock-resistant applications subject to high pressure, high temperatures, and repetitive tortional stresses.
| Durelloy B-7 | Durelloy B-16 | Dura-Krome Stainless | |
|---|---|---|---|
| Tensile strength psi minimum | 150,000 | 166,000 | 100,000 |
| Yield point psi minimum | 132,000 | 150,000 | 40,000 |
| Elongation in 2″ | 17% | 18% | 55% |
| Reduction of area | 50% | 55% | 60% |
| Rockwell C hardness | 28/30 | 26/34 | 20 |
| Stock Sizes / Class 2 Fit (B-7) | Stock Sizes / Class 2 Fit (8-16) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dia. | USS (Std.) Th/In. | SAE (Fine) Th/In. | 8Thd. | Dia. | USS (Std.) Th/In. | SAE (Fine) Th/In. | 8Thd. | Dia. | USS (Std.) Th/In. | SAE (Fine) Th/In. | Dia. | USS (Std.) Th/In. | SAE (Fine) Th/In. | 8Thd. |
| 1/4 | 20 | 28 | 1-1/4 | 7 | 12 | 8 | 1/4 | 20 | 28 | 1 | 8 | 14 | 8 | |
| 5/16 | 18 | 24 | 1-3/8 | 6 | 12 | 8 | 5/16 | 18 | 24 | 1-1/8 | 7 | 12 | 8 | |
| 3/8 | 16 | 24 | 1-1/2 | 6 | 12 | 8 | 3/8 | 16 | 24 | 1-1/4 | 7 | 12 | 8 | |
| 7/16 | 14 | 20 | 1-5/8 | 5-1/2 | 12 | 8 | 7/16 | 14 | 20 | 1-3/8 | 6 | 12 | 8 | |
| 1/2 | 13 | 20 | 1-3/4 | 5 | 12 | 8 | 1/2 | 13 | 20 | 1-1/2 | 6 | 12 | 8 | |
| 9/16 | 12 | 18 | 1-7/8 | 5 | 12 | 8 | 5/8 | 11 | 18 | |||||
| 5/8 | 11 | 18 | 2 | 4-1/2 | 12 | 8 | 3/4 | 10 | 16 | |||||
| 3/4 | 10 | 16 | 2-1/4 | 4-1/2 | 8 | 7/8 | 9 | 14 | ||||||
| 7/8 | 9 | 14 | 2-1/2 | 4 | 8 | |||||||||
| 1 | 8 | 14 | 8 | 2-3/4 | 4 | 8 | ||||||||
| 1-1/8 | 7 | 12 | 8 | 3 | 4 | 8 | ||||||||
Lengths: 12′ R/L. Over 3” thru 7” by special order.
Not sure what you are looking for? Contact Ameralloy Steel an ISO 9001 certified supplier that specializes in finding hard-to-find Stainless and Alloys. Along with our proprietary grades Amera-Braze, Durelloy, and Dura-Krome. Our knowledgeable sales team will help you find what you are looking for. With many shapes, sizes, and material grades available, we can help you find what you are looking for. The most common items stocked are Tube, Pipe, Sheet, Plate, Hex bar, Square bar, Round bar, Threaded bar, Pump Shaft, and Millimeter sizes. We offer added fabrication services. Contact us now for the current price and delivery.