Quots for Stainless Steel Fasteners Non-Standard Ss 304 Screw Combination (Rivet and Stud Made in China
Assume full obligation to meet all calls for of our clients; realize steady advancements by marketing the advancement of our clients; turn out to be the final permanent cooperative partner of clientele and maximize the interests of clients for Quots for Stainless Steel Fasteners Non-Standard Ss 304 Screw Combination (Rivet and Stud Made in China, President of our corporation, with whole workers, welcomes all buyers to visit our enterprise and inspect. Allow us to cooperate hand in hand to help make a fantastic potential. Assume full obligation to meet all calls for of our clients; realize steady advancements by marketing the advancement of our clients; turn out to be the final permanent cooperative partner of clientele and maximize the interests of clients for Bolts, China Auto Parts, As a well educated, innovative and energetic staff,we have been responsible for all elements of the research, design, manufacturing, sales and distribution. With studying and developing new techniques,we're not only following but also leading the fashion industry. We listen attentively to the feedback from our customers and give instant communication. You will instantly feel our expertise and attentive service.

ASTM A193/A193M B7 Combination Studs Step Down Studs

Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.

 

Standard: According to drawing

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 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 Nuts Washers
B7 A194 Grade 2H 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

Testing Lab

Workshop

Warehouse

Assume full obligation to meet all calls for of our clients; realize steady advancements by marketing the advancement of our clients; turn out to be the final permanent cooperative partner of clientele and maximize the interests of clients for Quots for Stainless Steel Fasteners Non-Standard Ss 304 Screw Combination (Rivet and Stud Made in China, President of our corporation, with whole workers, welcomes all buyers to visit our enterprise and inspect. Allow us to cooperate hand in hand to help make a fantastic potential. Quots for China Auto Parts, Bolts, As a well educated, innovative and energetic staff,we have been responsible for all elements of the research, design, manufacturing, sales and distribution. With studying and developing new techniques,we're not only following but also leading the fashion industry. We listen attentively to the feedback from our customers and give instant communication. You will instantly feel our expertise and attentive service.
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