ASTM A193 B8 CL2 Fasteners

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ASTM A193 B8 CL2 Fasteners Manufacturer and Supplier in Hamilton, New Zealand

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Aria Fasteners, located in Hamilton, New Zealand, is your go-to source for top-notch ASTM A193 B8 CL2 fasteners, which include bolts, stud bolts, nuts, and washers. These fasteners are designed to deliver strength, durability, and reliability, making them perfect for tough industrial settings. They ensure secure connections even in high-pressure, high-temperature, and corrosive environments. At Aria Fasteners, we take pride in meeting strict quality standards, so you can trust that our products will maintain their structural integrity and perform dependably across various industries, including chemical, petrochemical, power generation, and marine.

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Crafted from austenitic stainless steel, usually 316, our ASTM A193 B8 CL2 fasteners boast exceptional corrosion resistance, high tensile strength, and impressive toughness. The CL2 grade offers extra protection against chlorides, oxidation, and stress corrosion cracking, making these fasteners particularly suitable for marine, chemical, and offshore applications. Their mechanical stability under heavy loads, vibrations, and temperature fluctuations guarantees secure fastening and long-lasting durability in critical assemblies.

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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ASTM A193 B8 CL2 fasteners are extensively used in high-temperature and high-pressure environments, such as chemical processing, petrochemical, and power generation industries. Their excellent corrosion resistance and high tensile strength make them ideal for securing reactors, heat exchangers, and pressure vessels. These fasteners are also suitable for marine applications and construction projects requiring robust and reliable fastening solutions. Their compliance with stringent ASTM standards ensures they meet the demanding requirements of critical industrial applications.

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Types of ASTM A193 B8 CL2 Fasteners

These fasteners find extensive use in the oil and gas sector, chemical processing plants, power generation, and high-pressure piping systems. They’re perfect for flange connections, pressure vessels, and other vital bolted assemblies where reliability, corrosion resistance, and strength are non-negotiable. When you choose ASTM A193 B8 CL2 fasteners from Aria Fasteners, you’re opting for long-term performance, structural integrity, and reduced maintenance—making them the preferred choice for industries that prioritize safety, durability, and high-quality fastening solutions.