Duplex S32205 Stud Bolt - Superior Fastening Solution

Duplex Stainless Steel 2205, also known as 1.4462, is a grade of stainless steel that belongs to the duplex family. It is characterized by a dual-phase microstructure, consisting of both austenitic and ferritic phases. When used to manufacture stud bolts, Duplex 2205 offers specific advantages and characteristics:

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UNS
S32205
WNR
1.4462
ASTM
ASTM A479 / SA 479
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Corrosion Resistance: Duplex Steel 2205 stud bolts provide excellent corrosion resistance, particularly in aggressive environments such as seawater, chloride-rich atmospheres, and acidic solutions. This makes them suitable for marine, offshore, and chemical industry applications.

Strength and Mechanical Properties: Duplex stainless steels like 2205 exhibit higher strength compared to austenitic stainless steels like 304 or 316. This added strength is advantageous in applications where high mechanical loads are involved.

Stress Corrosion Cracking Resistance: Duplex 2205 is known for its resistance to stress corrosion cracking, which is a form of corrosion that occurs under tensile stress in corrosive environments. This property is valuable in applications where safety and reliability are critical.

Temperature Range: Duplex stainless steel 2205 stud bolts are suitable for a wide temperature range, making them versatile for various industrial applications, including those involving temperature fluctuations.

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Specifications of Duplex Steel S32205 Stud Bolts

Specifications	ASTM A479 / ASME SA479
Size	M02 to M160
Length	3 to 200 mm
Dimensions	DIN 975/976, ASME B18.2.1, B18.31.3, B16.5
DIN Standard	B.S. DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913
UTS	NPT, UNS, UNF, UNC, UNEF, NPTF
ISO	ISO 4033, ISO 4032, ISO 7380, ISO 4017, JIS standards
Threads	ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Type	Cold Forged, Hot Forged, Bar Stock Machined, Bar Stock Milling

Weldability: Duplex 2205 is generally weldable, although care must be taken to use appropriate welding procedures and filler materials to ensure the retention of its corrosion resistance and mechanical properties after welding.

Versatility: These stud bolts are used in a variety of industries, including oil and gas, petrochemical, chemical processing, and construction, where their combination of strength and corrosion resistance is highly desirable.

Duplex Microstructure: The dual-phase microstructure of Duplex 2205 contributes to its unique combination of properties. The austenitic phase provides high corrosion resistance and toughness, while the ferritic phase contributes to the material's strength.

Cost-Effectiveness: While Duplex stainless steels are typically more expensive than standard austenitic grades like 304 or 316, they are often more cost-effective in applications where their superior corrosion resistance and strength can lead to longer service life and reduced maintenance costs.

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Equivalent Grades Of Duplex Steel S32205 Stud Bolts

STANDARD	UNS	WERKSTOFF NR.
ASTM A479 F51	S32205	1.4462

Chemical Composition of Duplex Steel S32205 Stud Bolts

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N	Fe
S32205	0.030 max	2.00 max	1.00 max	0.030 max	0.020 max	22.0 – 23.0	3.0 – 3.5	4.50 – 6.50	0.14 – 0.20	63.72 min

Mechanical Properties of DSS UNS S32205 Stud Bolts

Grade	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
S32205	7.8 g/cm3	1350 °C (2460 °F)	Psi – 116000 , MPa – 800	Psi – 80000 , MPa – 550	15 %

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Types of Duplex Steel S32205 Stud Bolts

Duplex S32205 Double Ended Threaded Studs

Duplex Steel S32205 Tie Rods

DSS S32205 Threaded Rod

S32205 Duplex Steel Tap End Stud Bolt

Duplex Steel S32205 Fully Threaded Stud Bolts