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Name: Xiamen High Strength Stud Bolt
Material: 2205
Standard: ASNI B18.31.1M
Size: M30
Length: 280 mm
Class: 10.9
Feature: High Yield Strength and Durable Strength
Material: 2205
Standard: ASNI B18.31.1M
Size: M30
Length: 280 mm
Class: 10.9
Feature: High Yield Strength and Durable Strength
Quantity
This High Strength Stud Bolt strictly complies with the ASME B18.31.1M dimensional standard, with specifications of M30 x 280 mm and a property class of Class 10.9. The core advantage of this High Strength Stud Bolt lies in its selection of duplex stainless steel 2205 material, which possesses the dual characteristics of austenite and ferrite. While ensuring high yield strength and excellent durable load capacity, it provides far superior resistance to chloride stress corrosion cracking compared to ordinary carbon steel and B7 standard bolts. This High Strength Stud Bolt is specifically designed for harsh working conditions, making it particularly suitable for marine engineering, chemical pressure vessels, and critical flange and structural connection points that require both high strength and high corrosion resistance. It is an ideal upgrade alternative to traditional A193 B7 bolts in corrosive environments.
Duplex stainless steel 2205 is an alloy material composed of austenite and ferrite phases, with a two-phase microstructure ratio close to 50% each.
1. Extremely high yield strength
The yield strength of 2205 is above 450 MPa, which is more than twice that of ordinary 304 stainless steel (approximately 205 MPa). This means that for an High Strength Stud Bolt of the same M24 size, the 2205 material can withstand greater pre-tightening force and is less prone to thread plastic deformation or galling.
The yield strength of 2205 is above 450 MPa, which is more than twice that of ordinary 304 stainless steel (approximately 205 MPa). This means that for an High Strength Stud Bolt of the same M24 size, the 2205 material can withstand greater pre-tightening force and is less prone to thread plastic deformation or galling.
2. Resistance to chloride-induced stress corrosion cracking
Ordinary 316 stainless steel is prone to sudden brittle fracture due to stress corrosion cracking in chloride-containing environments (seawater, salt spray, chemical media). In contrast, the High Strength Stud Bolt made of 2205 material, with its ferrite phase effectively preventing crack propagation, is particularly suitable for offshore platforms, seawater desalination, and chemical pipeline flange connections.
Ordinary 316 stainless steel is prone to sudden brittle fracture due to stress corrosion cracking in chloride-containing environments (seawater, salt spray, chemical media). In contrast, the High Strength Stud Bolt made of 2205 material, with its ferrite phase effectively preventing crack propagation, is particularly suitable for offshore platforms, seawater desalination, and chemical pipeline flange connections.
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