ASTM A193 B8 CL3 Stud Bolts

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Rinku Fasteners, a trusted manufacturer and supplier based in Kolkata, India, brings decades of expertise in producing premium-quality ASTM A193 B8 CL3 Stud Bolts. Known for our precision engineering and commitment to global standards, we supply fasteners that deliver exceptional strength and reliability in demanding industrial environments. Our ASTM A193 B8 CL3 Stud Bolts are crafted using high-grade austenitic stainless steel and undergo stringent quality checks to ensure long-lasting performance. Whether for petrochemical plants, refineries, or marine applications, customers rely on Rinku Fasteners for consistent quality, timely delivery, and dependable service that make every project safer and more efficient.

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ASTM A193 B8 CL3 Stud Bolts are manufactured from solution-annealed stainless steel, typically corresponding to Grade 304 with enhanced mechanical properties. Their composition includes chromium (18–20%), nickel (8–11%), carbon in controlled amounts, along with manganese, silicon, and trace elements ensuring stability and corrosion resistance. The Class 3 modification delivers higher tensile and yield strength through strain hardening, making these bolts suitable for high-pressure and high-temperature environments. With excellent ductility, toughness, and oxidation resistance, ASTM A193 B8 CL3 Stud Bolts perform reliably in aggressive and fluctuating operating conditions.

ASTM A193 B8 CL3 Stud Bolts Chemical Composition

Element	B7	B8	B8M
Carbon	0.37 – 0.49%	0.08% max	0.08% max
Manganese	0.65 – 1.10%	2.00% max	2.00% max
Phosphorus, max	0.035%	0.045%	0.045%
Sulfur, max	0.040%	0.030%	0.030%
Silicon	0.15 – 0.35%	1.00% max	1.00% max
Chromium	0.75 – 1.20%	18.0 – 20.0%	16.0 – 18.0%
Nickel		8.0 – 11.0%	10.0 – 14.0%
Molybdenum	0.15 – 0.25%		2.00 – 3.00%

Astm A193 B8 Cl3 Stud Bolts Price In India, Astm A193 Grade B8 Class 3 Stud Bolts Price In Kolkata, Astm A193 B8 Cl3 Tie Rod Dealer In India, Astm A193 B8 Cl3 Tie Stud Bolts Supplier & Exporter In Kolkata, Astm A193 B8 Cl3 Stud Bolts Supplier in India, A193 B8 Cl3 Stud Stockist in Kolkata, India.

ASTM A193 B8 CL3 Stud Bolts 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

ASTM A193 B8 CL3 Stud Bolts Specifications

Material	Specification	Standards	Size	Length
ASTM A193 B8 CL3 StudBolt	IS BS ASTM	DIN, ISO, JIS, GB, IS, BS, ASTM	M 02 to M 160	3 mm to 200 mm

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ASTM A193 B8 CL3 stud bolts are commonly used in high-temperature and high-pressure environments, such as in petrochemical, oil and gas, and power generation industries. They are ideal for critical applications requiring robust performance, including flanged joints, reactors, and pressure vessels. Their superior strength and corrosion resistance make them suitable for equipment exposed to extreme conditions, ensuring reliable and secure connections in demanding industrial settings.

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Types of ASTM A193 B8 CL3 Stud Bolts

ASTM A193 B8 CL3 Stud Bolts are widely chosen for applications where superior strength, corrosion resistance, and durability are essential. They are extensively used in petrochemical units, refineries, thermal power plants, fertilizer industries, and offshore structures. Their robust mechanical properties make them ideal for high-pressure flanged joints, heat exchangers, boiler assemblies, pressure vessels, and pipeline systems. In environments exposed to moisture, chemicals, or elevated temperatures, these stud bolts offer exceptional reliability. Industries prefer ASTM A193 B8 CL3 Stud Bolts for their long service life, minimal maintenance needs, and dependable performance in both static and dynamic load conditions.