ASTM A193 B8M Bolts

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ASTM A193 B8M Bolts Manufacturer and Supplier in Tunis, Tunisia

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Lina Fasteners is a trusted manufacturer and supplier located in Tunis, Tunisia, specializing in high-quality ASTM A193 B8M Bolts that are perfect for corrosive and high-temperature environments. These bolts are crafted in line with ASTM standards from molybdenum-bearing austenitic stainless steel, which enhances their corrosion resistance. With a focus on precision machining, accurate threading, and rigorous quality control, Lina Fasteners guarantees consistent performance. These bolts are widely used in the oil & gas, petrochemical, chemical processing, and power generation sectors, providing durable fastening solutions, reliable quality, and timely support for essential industrial applications.

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Composition & Mechanical Properties – ASTM A193 B8M Bolts (90 words) ASTM A193 B8M Bolts are made from austenitic stainless steel similar to Type 316, featuring a blend of chromium, nickel, and molybdenum. This unique composition offers outstanding resistance to pitting and crevice corrosion, particularly in chloride-rich environments. These bolts boast impressive tensile and yield strength, excellent toughness, and high ductility. They maintain their mechanical integrity even at elevated temperatures, resist oxidation, and perform reliably under high stress, pressure, and corrosive conditions.

ASTM A193 B8M 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%

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ASTM A193 B8M 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
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

ASTM A193 B8M Bolts Specifications

Material	Specification	Standards	Size	Length
ASTM A193 B8M Bolt	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 B8M Bolts are commonly utilized in environments that are both corrosive and high-temperature. Typical applications include flanged joints, pressure vessels, valves, boilers, and heat exchangers. They are extensively used in chemical processing plants, oil refineries, petrochemical facilities, power generation plants, and marine installations. Their exceptional resistance to chlorides and harsh chemicals makes them ideal for offshore platforms, seawater systems, and industrial piping. These bolts provide secure fastening, a long service life, and dependable performance in critical applications.

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Types of ASTM A193 B8M Bolts

Lina fasteners contain careful packages of ASTM A193 B8M bolts to ensure safe delivery and optimal quality. Each bolt is individually inspected and carefully wrapped to prevent damage during transport. We use durable protective coatings and fasteners to keep the bolt intact. Custom packaging is available to meet specific needs. Our commitment to quality extends through our packaging, ensuring that your fasteners arrive in perfect condition, ready for immediate use.