ASTM A193 B8T Fasteners

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ASTM A193 B8T Fasteners Manufacturer and Supplier in Houston , USA

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Brian Fasteners, Houston, USA, is a reliable manufacturer and exporter of high-grade ASTM A193 B8T fasteners. Known for precise engineering and strict compliance with international standards, Brian Fasteners produces robust, corrosion-resistant fasteners that suit the stringent demands of high-end industries. With years of experience in the industry and adherence to excellence, we cater to a large base of customers in the oil & gas, petrochemical, and power generation industries. Our ASTM A193 B8T fasteners are produced from the finest raw materials and advanced technology to ensure dependability and excellence in high-temperature as well as corrosive conditions.

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ASTM A193 B8T fasteners are produced from 321 Type stainless steel, which is titanium-stabilized 304. The main components include chromium (17–20%), nickel (9–12%), and titanium (at least 5x the carbon content). These fasteners are suitable for use in high-temperature and high-pressure conditions. Mechanically, they provide a minimum tensile strength of 75 ksi (515 MPa) and yield strength of 30 ksi (205 MPa). The material has great oxidation resistance as well as excellent toughness at high temperatures, which makes them suitable for heat-resisting applications while providing enhanced weldability and resistance to intergranular corrosion.

ASTM A193 B8T Fasteners 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 B8T 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 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 B8T Fasteners Specifications

Material	Specification	Standards	Size	Length
ASTM A193 B8T 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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ASTM A193 B8T fasteners find broad usage in those industries where corrosion resistance and high strength are most important. General uses involve heat exchangers, power plants, pressure vessels, and high-temperature piping systems. These fasteners are best suited to environments with exposure to acids, chlorides, and severe temperatures because of their resistance to stress corrosion cracking and intergranular corrosion. They are generally used in chemical processing, oil & gas, and marine applications. Their suitability for welding and machining operations also renders them a popular option in reactor, boiler, and other component construction where they are needed for long-term safety and reliability.

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We prioritize quality by conducting rigorous tests, including Hardness Tests, Spectro Analysis, and PMI Testing, on all our materials before dispatch. We provide essential documents such as commercial invoices, packing lists, Certificates of Origin, and Guarantee Letters to ensure client satisfaction. Additionally, we offer Third Party Inspection Certificates to affirm our commitment to delivering top-tier products. Our comprehensive approach underscores our dedication to maintaining the highest standards and ensuring the reliability of our fasteners.