ASTM A193 B8 CL2 Fasteners

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ASTM A193 B8 CL2 Fasteners Manufacturer and Supplier in Tunis, Tunisia

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Lina Fasteners is a well-respected manufacturer and supplier located in Tunis, Tunisia, specializing in high-quality ASTM A193 B8 Class 2 Fasteners designed for high-temperature and corrosive environments. These fasteners are crafted in line with ASTM standards, undergoing solution annealing and strain hardening to boost their strength and durability. Lina Fasteners offers a range of products, including bolts, studs, nuts, and threaded rods, all made with precise dimensions, accurate threading, and rigorous quality control. They are widely used in the oil and gas, petrochemical, chemical processing, and power generation sectors, providing reliable fastening solutions, consistent quality, and timely support for critical industrial projects.

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ASTM A193 B8 Class 2 Fasteners are made from austenitic stainless steel, similar to Type 304, with carefully controlled amounts of chromium and nickel. These Class 2 fasteners are strain hardened, giving them greater tensile and yield strength compared to Class 1. They boast excellent toughness, good ductility, and strong resistance to oxidation and general corrosion. These fasteners maintain their mechanical integrity even at high temperatures and perform reliably under significant stress, pressure, and thermal cycling conditions.

ASTM A193 B8 CL2 Fasteners Chemical Composition

Element	B7	B8 CL2	B8 CL2M
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%

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ASTM A193 B8 CL2 Fasteners 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 CL2 Class 1	All	75	30	30	50
B8 CL2M Class 1	All	75	30	30	50
B8 CL2 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
B8 CL2M Class 2	Up to 3/4	110	95	15	45

ASTM A193 B8 CL2 Fasteners Specifications

Material	Specification	Standards	Size	Length
ASTM A193 B8 CL2 Fasteners	IS BS ASTM	DIN, ISO, JIS, GB, IS, BS, ASTM	M 02 to M 160	3 mm to 200 mm

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You’ll find ASTM A193 B8 Class 2 Fasteners in a variety of applications that demand corrosion resistance and higher strength at elevated temperatures. They are commonly used in flanged joints, pressure vessels, boilers, valves, and heat exchangers. These fasteners are extensively utilized in oil refineries, petrochemical plants, power generation facilities, and chemical processing operations. Their ability to resist oxidation and thermal stress makes them ideal for steam service, high-pressure piping systems, and industrial equipment. With these fasteners, you can count on secure joints, a long service life, and dependable performance in critical applications.

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Types of ASTM A193 B8 CL2 Fasteners

At Lina Fasteners, the ASTM A193 B8 CL2 fasteners are carefully packaged to ensure they reach you in pristine condition. Each binder is carefully packaged in durable, corrosion-resistant packaging to prevent damage during transport. Clear labeling on each product ensures easy identification and follow-up. We offer customizable packaging to meet your specific needs, ensuring convenience and efficiency in handling and storage. Trust Lina Fasteners provide safe, reliable delivery of critical fastening solutions.