ASTM A193 B8 Stud Bolts

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ASTM A193 B8 Stud Bolts Manufacturer and Supplier in Da Nang, Vietnam

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Poang Fasteners, a trusted manufacturer and supplier in Da Nang, Vietnam, offers high-quality ASTM A193 B8 Stud Bolts designed for performance in demanding industrial environments. Manufactured from austenitic stainless steel, these stud bolts provide outstanding corrosion resistance, durability, and strength. Poang ensures strict compliance with ASTM standards, delivering products suitable for use in industries such as petrochemical, oil & gas, marine, construction, and power generation. With a strong focus on precision engineering and quality assurance, Poang Fasteners supplies reliable fastening solutions that meet the requirements of high-pressure and high-temperature applications worldwide.

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ASTM A193 B8 Stud Bolts are produced from AISI 304 stainless steel, containing 18–20% chromium and 8–11% nickel, along with controlled amounts of carbon, manganese, phosphorus, sulfur, and silicon. This composition ensures excellent corrosion resistance, particularly against oxidation and chemical exposure. They offer a minimum tensile strength of 75 ksi (515 MPa) and yield strength of 30 ksi (205 MPa), with good ductility and toughness. Their non-magnetic nature, combined with high resistance to scaling at elevated temperatures, makes them highly suitable for critical applications requiring durability and longevity.

ASTM A193 B8 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%

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ASTM A193 B8 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
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 B8 Stud Bolts Specifications

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

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ASTM A193 B8 Stud Bolts are widely used in industries requiring high-strength and corrosion-resistant fastening solutions. Key applications include petrochemical plants, oil and gas refineries, and power generation facilities. These bolts are essential for securing pressure vessels, flanges, valves, and pipeline assemblies in high-temperature and high-pressure environments. Their superior durability and reliability make them ideal for critical operations, ensuring safety and stability in demanding conditions. Choose ASTM A193 B8 Stud Bolts for dependable performance in challenging industrial applications.

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Types of ASTM A193 B8 Stud Bolts

The applications of ASTM A193 B8 Stud Bolts span across multiple industries where corrosion resistance and reliability are essential. In the oil & gas and petrochemical sectors, they are used for flange connections, reactors, valves, and pressure vessels. The marine industry relies on them for offshore structures, ships, and desalination plants due to their seawater resistance. In construction, they secure steel structures, bridges, and heavy machinery, while in power plants, they are applied in turbines, boilers, and heat exchangers. Their versatility and strength make them a preferred choice for fastening components exposed to harsh and corrosive environments.