ASTM A193 B8 CL2 Bolts

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Aria Fasteners is a reputable manufacturer and supplier based in Hamilton, New Zealand, offering high-quality ASTM A193 B8 CL2 Bolts designed for reliable performance in demanding industrial applications. The company is known for its precision engineering, adherence to global standards, and commitment to consistent product quality. Serving industries such as petrochemical, power generation, marine, and construction, Aria Fasteners delivers fastening solutions that ensure durability and long service life. Their focus on customer satisfaction, technical capability, and timely supply has earned them recognition as a trusted source of premium stainless-steel bolts throughout New Zealand and international markets. (≈100 words)

Astm A193 B8 Cl2 Hex Bolts Price In Auckland, B8 Cl.2 Bolts Dealer In Wellington, Astm A193 Hex Head Bolt Exporter In Tauranga, B8 Cl2 Socket Cap Screw Supplier In Wellington, A193 B6 Heavy Hex Bolts Dealer In Hamilton, Astm A193 B8 Class 2 Bolts Manufacturer In Hamilton, Astm A193 B8 Cl2 Hex Bolts Dealer in Wellington New Zealand.

ASTM A193 B8 CL2 Bolts are manufactured from 304 stainless steel that undergoes solution annealing followed by controlled strain-hardening to achieve moderate increases in strength. Their chemical composition includes 18–20% chromium, 8–11% nickel, low carbon content, and regulated levels of manganese, silicon, phosphorus, and sulfur, giving them strong corrosion resistance and stability. Compared to Class 1, Class 2 bolts offer improved tensile and yield strength while maintaining good ductility. These mechanical properties make them suitable for environments where both corrosion resistance and enhanced strength are required without excessive hardening. (≈90 words)

ASTM A193 B8 CL2 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 CL2 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 CL2 Bolts Specifications

Material	Specification	Standards	Size	Length
ASTM A193 B8 CL2 Hex 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 B8 CL2 bolts are widely used in high-temperature and corrosive environments, such as in the oil and gas, petrochemical, and power generation industries. Their high strength and resistance to oxidation make them suitable for securing critical components in machinery, pressure vessels, and piping systems. Common applications include flanged connections, reactor vessels, and steam pipelines. These bolts ensure reliable performance and durability under extreme conditions, making them essential for safety and efficiency in demanding industrial settings.

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Types of ASTM A193 B8 CL2 Bolts

ASTM A193 B8 CL2 Bolts are used in applications that demand a balance of corrosion resistance, mechanical strength, and structural reliability. They are commonly installed in pressure vessels, heat exchangers, flanged joints, pumps, and valve assemblies across petrochemical facilities, chemical plants, power stations, and marine installations. Their controlled strain-hardened properties allow them to perform effectively in moderate high-temperature and high-pressure environments. Industries working in coastal or corrosive conditions also rely on these bolts due to their resistance to oxidation and chlorides. Their dependable performance makes them a practical choice for a wide range of critical fastening applications. (≈100 words)