SHANDONG LE REN SPECIAL STEEL CO., LTD.
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Thread Bar B7 Threaded Rod
ASTM A193 B7 Steel Threaded Bar are manufactured to meet numerous specifications and material design properties. More specifically, B7 Steel Threaded Rod alloy steel is a high temperature grade of A-193. B7 steel is also a chrome molybdenum steel with a minimum tensile strength of 125ksi, B7 grade bolts can be used in a variety of extreme conditions.
We can also produce high strength a193 gr b7 studs, A193 b7 studs are made of chrome molybdenum steel and heat treated to increase strength and reliability, they are also used in a wide range of industries, they can be used in various chemical, Applications in construction and oil fields. More specifically, B7 grade bolts can be used to improve the following types of applications: fittings, valves, pressure vessels, flanges, Threaded Rods, and more.
1. astm a193 grade b7m threaded rods raw material sae4140 chemical composition:
| C | SI | MN | S/P | CR | MO |
| 0.38-0.45 | 0.15-0.35 | 0.75-1.00 | 0.035(MAX) | 0.80-1.20 | 0.15-0.25 |
2. astm a193 grade b7 threaded rods mechanical property:
| Tensile strength | Yield strength | Elongation | Reduction of area | Hardness |
| 860MPa min | 720MPa min | 16% min | 52% min | 235HB max |
Note: The properties can adjust according to your requirements
3. astm a193 grade b7 threaded rods sizes:
Metric threaded rods: M12 - M64
Imperial threaded rods: 1/2"- 4"
LENGTH: 1M, 2M ,3M, 6M, 12FT or cut to other lengths according to customer's requirement.
Metric threaded rods common sizes:
| M12 | 1.75mm | M36 | 4mm |
| M14 | 2mm | M39 | 4mm |
| M16 | 2mm | M42 | 4.5mm |
| M18 | 2.5mm | M45 | 4.5mm |
| M20 | 2.5mm | M48 | 5mm |
| M22 | 2.5mm | M52 | 5mm |
| M24 | 3mm | M56 | 5.5mm |
| M27 | 3mm | M60 | 5.5mm |
| M30 | 3.5mm | M64 | 6mm |
| M33 | 3.5mm | 8UN |
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Imperial threaded rods common sizes:
| 5/8" | 11UNC | 2 3/8" | 8UN |
| 3/4" | 10UNC | 2 1/2" | 8UN |
| 7/8" | 9UNC | 2 5/8" | 8UN |
| 1" | 8UN | 2 3/4" | 8UN |
| 1 1/8" | 8UN | 2 7/8" | 8UN |
| 1 1/4 | 8UN | 3" | 8UN |
| 1 3/8" | 8UN | 3 1/8" | 8UN |
| 1 1/2" | 8UN | 3 1/4" | 8UN |
| 1 5/8" | 8UN | 3 1/8" | 8UN |
| 1 3/4" | 8UN | 3 1/2" | 8UN |
| 1 7/8" | 8UN | 3 5/8" | 8UN |
| 2" | 8UN | 3 3/4" | 8UN |
| 2 1/8" | 8UN | 3 7/8" | 8UN |
| 2 1/4" | 8UN | 4" | 8UN |
Shandong Le Ren Special Steel CO., Ltd. owns three factories to produce all kinds of steel rod, steel bar and finished steel products. Among three factories, one is to produce steel bars such as annealed, normalized and quenched and tempered steel bar and pipe, cold drawn, peeled, ground and polished steel bar etc; one is to produce threaded or knurled steel rod and steel bar; another one is to do steel bar, steel rods or steel pipe machining.
In the tactories, we have complete and advanced production, inspection and testing facilities such as shot blasting machines, cold drawing machines,straightening machines, annealing furnace, quenching and tempering furnaces, threading machines, cnc machines, welding machines etc, and inspections and testing facilities to inspect dimension tolernaces, corner radius, length, straightness, surface roughness, mechanical properties, AKV, UT testing, Eddy testing and MPI testing etc. All of these, including more than twenty years production and exporting experiences, we can supply you good quality products and services.
Our factory is equipped with complete inspection and testing facilities to inspect steel bar dimension tolernaces, corner radius, length, straightness, surface roughness, mechanical properties, AKV, UT testing, Eddy testing and MPI testing etc.
Most of our steel bar are cold drawn, peeled, ground and polished steel bar which require good surface and straightness. So steel bar packing is very important to keep good quality. We use several kinds of steel bar packing according to your technical requirements.
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