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UNS N10276 Special Fastener, NC17D, 5/16 to 4 inch, 30 to 800 mm
UNS N10276 Special Fastener, NC17D, 5/16 to 4 inch, 30 to 800 mm
UNS N10276 Special Fastener
UNS N10276 Special Fastener

UNS N10276 Special Fastener

QS Fastener: UNS N10276 Special Fastener
Name: UNS N10276 Special Fastener
Material: NC17D
Size: 5/16 to 4 inch
Length: 30 to 800 mm
Standard: ANSI, DIN, BSW
Product Grade: A
Tensile Strength(Rm): 690 N/mm²
Elongation: 40%
Feature: Good resistance to pitting corrosion, crevice corrosion and stress corrosion cracking, Excellent antioxidant capacity of water medium
Application: For chemical industry, petroleum industry and Acid Corrosion Environment, etc
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The UNS N10276 Special Fastener is manufactured from high-performance nickel-based alloy NC17D, with size ranges covering 5/16 to 4 inches and lengths up to 30 to 800 mm. It complies with various international standards such as ANSI, DIN, and BSW. The product is Grade A, offering a tensile strength of up to 690 N/mm² and an elongation rate of 40%, ensuring exceptional mechanical performance and reliability. Its core advantage lies in its outstanding corrosion resistance, particularly in resisting pitting, crevice corrosion, and stress corrosion cracking (SCC), along with strong oxidation resistance, making it especially suitable for aqueous environments. The UNS N10276 Special Fastener is widely used in extreme working conditions such as chemical, petroleum, and acidic corrosive environments, making it an ideal choice for ensuring the long-term stable operation of equipment.
 
The UNS N10276 Special Fastener demonstrates extraordinary reliability and durability in extreme working conditions due to its exceptional mechanical properties.  
1. Tensile Strength (Rm): ≥690 N/mm²  
Tensile strength is the maximum stress a material can withstand before breaking. The UNS N10276 Special Fastener boasts a tensile strength of over 690 N/mm², meaning it can endure extremely high tensile loads, making it suitable for high-stress environments such as chemical equipment and petroleum pipelines. Its high-strength design ensures that the fastener is less prone to deformation or fracture during long-term use, safeguarding the safety and stability of the equipment.  
 
2. Yield Strength (Rp0.2): ≥283 N/mm²  
Yield strength is the critical stress value at which a material begins to undergo plastic deformation. The UNS N10276 Special Fastener has a yield strength of over 283 N/mm², indicating its ability to maintain shape and functional integrity under high loads. This characteristic makes it particularly effective in dynamic load or vibration environments, preventing fastener failure due to plastic deformation.  
 
3. Elongation (A): ≥40%  
Elongation is the percentage by which a material can stretch before breaking, reflecting its toughness and impact resistance. The UNS N10276 Special Fastener has an elongation rate of over 40%, demonstrating excellent toughness. It can absorb energy under impact or sudden loads, avoiding brittle fractures. This property makes it particularly outstanding in environments with extreme temperature changes or impact loads.  
 
4. Hardness: ≤100 HRB  
Hardness is a material's ability to resist local deformation, such as indentation or scratching. The hardness of the UNS N10276 Special Fastener is controlled below 100 HRB. This moderate hardness ensures both strength and wear resistance while avoiding increased brittleness due to excessive hardness. Additionally, the lower hardness facilitates processing and installation, improving construction efficiency.  
 
Comprehensive Performance Advantages  
The UNS N10276 Special Fastener achieves a perfect balance of high strength, toughness, and good machinability through optimized mechanical performance design. Its tensile strength and yield strength ensure reliability under extreme loads, the elongation provides excellent impact resistance, and the moderate hardness balances wear resistance and processing convenience. These characteristics make it an ideal choice for harsh environments such as chemical, petroleum, and marine engineering, providing a solid guarantee for the safe operation of equipment.

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