ASTM A193 B7 B7M Stud Bolt / ASTM A193 B7 B7M Studs
ASTM A193 is alloy steel bolting material for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
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Material according to ASTM A193 B7 is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.
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Material according to ASTM A193 B7 is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.
We provide A193 B7 studs from 1/4" diameter to 4" diameter in plain finish, or multiple common finishes.
1.Studs:ASTM A193 Grade B7
Full Threaded Rod Stud Bolts
Chamfered Flat Faced Ends
Manufactured from Chromium-Molybdenum Ferritic Alloy Steel
Tensile Strength: 125 KSI Min.
Hardness 35 HRC Max.
2.Nuts:Grade 2H
Heavy Hex
Single-Chamfered with Bottom Washer Face
Manufactured from Carbon Steel
Rockwell Hardness: C24 to C38
3.Threads:
1" Diameter & Smaller - Unified Inch Coarse Series (UNC), Class 2A
1-1/8" Diameter & Larger - Unified Inch 8 Thread Series (UN8), Class 2A
4.Typical grades: ASTM A 193 Gr.B7, Gr.B7M, B16,Gr.B8, Gr.B8M
5.ASTM A193 B7 properties :
| Grade | Sizes | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min | HBW | HRC |
| A193 B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 | 321 max | 35 max |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |||
| 4-1/8 - 6 | 100 | 75 | 18 | 50 |
6.ASTM A193 B7 material chemical composition (4140)
| Element | B7 (AISI 4140) |
| Carbon | 0.38 - 0.48% |
| Manganese | 0.75 - 1.00% |
| Phosphorus, max | 0.04% |
| Sulfur, max | 0.04% |
| Silicon | 0.15 - 0.35% |
| Chromium | 0.80 - 1.10% |
| Nickel | |
| Molybdenum | 0.15 - 0.25% |
7.Surface coating :
Hot Dip Galvanized
Mechanical Galvanized
Zinc plated (Clear)
Yellow Zinc plated
Cadmium plated
Yellow Cadmium plated
Black Oxide
Plain surface
Self steel black color
8.MOQ: Generally, we don't have any MOQ requirements, because we are producing big quantity every month.
9.Delivery time : 7-30 days upon to your sizes & quantity.
10.Our advantages:
Capability from Raw material to processing to final products under one Roof . Highest customer satisfactionEconomy of products
Absolute reliability
Highly-qualified and motivated personnel
No tolerance of errorsContinuous optimisation of all processes
11.FAQ
Q: Are you manufacturer or trading company ?
A: We have factory producing threaded rods for more than 20 years, We owned more than 20 sets of producing equipments.
Q: What's your sample policy ?
A: Our sample is free, but customer may need to pay the express cost.
Q: What's your MOQ ?
A: The MOQ is 100pieces,
Q: What's your delivery time?
A: Generally, our delivery time is 30 days after deposit received, we can adjust our production if your order is urgent.
Q: What's your payment term:
A: Usually, if amount is less than 1000usd, we suggest payment through west union , if amount above 1000usd, we suggest TT or LC.
ASTM A193 B7 B7M Stud Bolt / ASTM A193 B7 B7M Studs
ASTM A193 B7 B7M Stud Bolt / ASTM A193 B7 B7M Studs
ASTM A193 B7 B7M Stud Bolt / ASTM A193 B7 B7M Studs
ASTM A193 B7 B7M Stud Bolt / ASTM A193 B7 B7M Studs