ASTM A193 Grade B8 Class 2 Bolts

ASME SA193 B8 Cl2 Strain Hardened Studs and Threaded Rod manufacturer in India

 

What is the difference between B7 and B8 bolts?

B7 and B8 bolts are distinct types of fasteners that differ in terms of their material composition, mechanical properties, corrosion resistance, and application suitability. These differences determine the appropriate use for each bolt in various industries and applications.

B7 bolts are manufactured from alloy steel, specifically chromium-molybdenum (Cr-Mo) steel, with common grades being AISI 4140 or 4142. They are classified under the astm a193 standard. In contrast, B8 bolts are produced from austenitic stainless steel, with the most prevalent grades being Type 304 or Type 304L, and also fall under the ASTM A193 standard.

When it comes to mechanical properties, B7 bolts exhibit superior strength and toughness compared to astm a193 b8 bolts bolts. B7 bolts have a tensile strength of 125 ksi (kilo-pound per square inch) and a yield strength of 105 ksi. On the other hand, B8 bolts possess a tensile strength of 75 ksi and a yield strength of 30 ksi.

Corrosion resistance is another factor that differentiates these two types of bolts. B8 bolts, made of stainless steel, offer enhanced corrosion resistance compared to B7 bolts. B7 bolts, due to their alloy steel composition, provide some corrosion resistance but not as much as B8 bolts.

B7 bolts are frequently employed in situations that involve high pressure and high temperature due to their exceptional strength and toughness. Conversely, the sa193 b8 bolts are better suited for applications where the prevention of corrosion is a top priority.

In summary, B7 and B8 bolts serve unique purposes based on their material compositions, mechanical properties, and corrosion resistance abilities. B7 bolts made of alloy steel are suitable for applications that require strength and durability, while B8 bolts made of stainless steel are better suited for applications that require resistance to corrosion.

 

buy A193 B8 Class 2 Hex Bolts and Nut in M12 - M30 size range online and save cost, view price

 

ASTM A193 Grade B8 Class 2 Bolts Specification

ASTM A193 Grade B8 Class 2 Bolts Specification

 

Check sizes & dimensions of partially threaded A193 B8 Class 2 Heavy Hex Bolts, view B8 CL2 Torque chart

 

What is the difference between ASTM A193 B8M Class 2 and Class 1?

ASTM A193 B8M differs from astm a193 grade b8 by having more specific requirements for both its chemical composition and mechanical properties. The terms Class 1 and Class 2 for astm a193 grade b8 refer to distinct heat treatment methods utilized to attain the desired mechanical characteristics.

ASTM A193 B8M Class 1 bolts are heat-treated to achieve a minimum tensile strength of 75 ksi and a minimum yield strength of 30 ksi. astm a193 b8m class 2 bolts, on the other hand, are heat-treated to achieve a minimum tensile strength of 100 ksi and a minimum yield strength of 65 ksi.

The key difference between Class 1 and Class 2 sa193-b8 bolts is the level of strength achieved through heat treatment.

 

Capability to machine diameters up to 8", or 200mm SA193 B8 Class 2 Studs, threaded rod/ bar, U bolt

 

Various types of astm a193 b8 bolts
ASTM A193 Grade B8 Class 2 Bolts
ASTM A193 Grade B8 Class 2 Bolts
Sa193 B8 Cl2 Bolts
Sa193 B8 Cl2 Bolts
ASTM A193 B8 Stud Bolts
ASTM A193 B8 Stud Bolts

 

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