High Quality China Carbon Steel ASTM A193 B7 Double End Studs, Tap End Studs, Threaded Stud Bolts
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We are convinced that with joint efforts, the business between us will bring us mutual benefits. We can assure you product quality and competitive price for High Quality China Carbon Steel ASTM A193 B7 Double End Studs, Tap End Studs, Threaded Stud Bolts, We consider you will be content with our fair price, premium quality goods and quick delivery. We sincerely hope you can give us an chance to provide you and be your greatest partner! We are convinced that with joint efforts, the business be...
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We are convinced that with joint efforts, the business between us will bring us mutual benefits. We can assure you product quality and competitive price for High Quality China Carbon Steel ASTM A193 B7 Double End Studs, Tap End Studs, Threaded Stud Bolts, We consider you will be content with our fair price, premium quality goods and quick delivery. We sincerely hope you can give us an chance to provide you and be your greatest partner!
We are convinced that with joint efforts, the business between us will bring us mutual benefits. We can assure you product quality and competitive price for China Threaded Studs, Threaded Stud, Abiding by our motto of “Hold well the quality and services, Customers Satisfaction”, So we deliver our clients with high quality merchandise and excellent service. Be sure to feel free to contact us for further information.
ASTM A193/A193M B7 All Threaded Stud Bolts
API 6A 6D Flange Valve Wellhead ASME/ANSI Flange All Thread Stud Bolts
Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
Standard: IFI-136, ASME B16.5, DIN976
Inch Size: 1/4”-4” with various lengths
Metric Size: M6-M100 with various lengths
Other Available Grade:
ASTM A193/A193M B7, B7M, B16, B8 Class 1 & 2, B8M Class 1 & 2,
ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.
Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.
Packing: Bulk about 25 kgs each carton, 36 cartons each pallet
Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports
Please feel free to contact us for more details.
ASTM A193 Scope
Originally approved in 1936, this specification is heavily utilized in petroleum and chemical construction applications. The ASTM standard covers alloy steel and stainless steel bolting materials for high temperature or high pressure service. This specification includes fasteners intended for use in pressure vessels, valves, flanges, and fittings. Although, this material 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.
Below is a basic summary of a few of the common grades. ASTM A193 covers a number of other standard specifications not covered in this description including B5, B6, and B16.
Grades
|
B7 |
Alloy steel, AISI 4140/4142 quenched and tempered |
|
B8 |
Class 1 Stainless steel, AISI 304, carbide solution treated. |
|
B8M |
Class 1 Stainless steel, AISI 316, carbide solution treated. |
|
B8 |
Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened |
|
B8M |
Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened |
Mechanical Properties
|
Grade |
Size |
Tensile ksi, min |
Yield, ksi, min |
Elong, %, min |
RA % min |
|
B7 |
Up to 2-1/2 |
125 |
105 |
16 |
50 |
|
2-5/8 – 4 |
115 |
95 |
16 |
50 |
|
|
4-1/8 – 7 |
100 |
75 |
18 |
50 |
|
|
B8 Class 1 |
All |
75 |
30 |
30 |
50 |
|
B8M Class 1 |
All |
75 |
30 |
30 |
50 |
|
B8 Class 2 |
Up to 3/4 |
125 |
100 |
12 |
35 |
|
7/8 – 1 |
115 |
80 |
15 |
35 |
|
|
1-1/8 – 1-1/4 |
105 |
65 |
20 |
35 |
|
|
1-3/8 – 1-1/2 |
100 |
50 |
28 |
45 |
|
|
B8M Class 2 |
Up to 3/4 |
110 |
95 |
15 |
45 |
|
7/8 – 1 |
100 |
80 |
20 |
45 |
|
|
1-1/8 – 1-1/4 |
95 |
65 |
25 |
45 |
|
|
1-3/8 – 1-1/2 |
90 |
50 |
30 |
45 |
Recommended Nuts and Washers
|
Bolt Grade |
Washers |
|
|
B7 |
F436 |
|
|
B8 Class 1 |
A194 Grade 8 |
SS304 |
|
B8M Class 1 |
A194 Grade 8M |
SS316 |
|
B8 Class 2 |
A194 Grade 8 |
SS304 |
|
B8M Class 2 |
A194 Grade 8M |
SS316 |
Strain hardened nuts available as a supplementary requirement
We are convinced that with joint efforts, the business between us will bring us mutual benefits. We can assure you product quality and competitive price for High Quality China Carbon Steel ASTM A193 B7 Double End Studs, Tap End Studs, Threaded Stud Bolts, We consider you will be content with our fair price, premium quality goods and quick delivery. We sincerely hope you can give us an chance to provide you and be your greatest partner!
High Quality China Threaded Studs, Threaded Stud, Abiding by our motto of “Hold well the quality and services, Customers Satisfaction”, So we deliver our clients with high quality merchandise and excellent service. Be sure to feel free to contact us for further information.
