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DIN 1.4980 Stud Bolt
QS Fastener: DIN 1.4980 Stud Bolt
Name: DIN 1.4980 Stud Bolt
Standard: ANSI, DIN
Material: S66286
Size: 5/16 to 4 inch
Product Grade: A
Tensile Strength(Rm): 895 N/mm²
Elongation: 25%
Feature: Excellent Corrosion Resistance
Application: For Aerospace and Heavy Industry, etc.
Standard: ANSI, DIN
Material: S66286
Size: 5/16 to 4 inch
Product Grade: A
Tensile Strength(Rm): 895 N/mm²
Elongation: 25%
Feature: Excellent Corrosion Resistance
Application: For Aerospace and Heavy Industry, etc.
Quantity
The DIN 1.4980 stud bolt, also known as UNS S66286 or Alloy A-286, represents a premium fastening solution engineered for the most demanding industrial applications. This precipitation-hardening austenitic stainless steel fastener delivers exceptional mechanical strength and corrosion resistance across extreme environments.
Manufactured to comply with both ANSI and DIN standards, these stud bolts are available in a comprehensive size range from 5/16 to 4 inches and are classified as Grade A. The material achieves a tensile strength of 895 N/mm² with 25% elongation, ensuring reliable performance under high stress. The alloy composition—approximately 25% nickel, 15% chromium, with molybdenum, titanium, and vanadium additions—provides outstanding oxidation resistance up to 650°C and excellent resistance to corrosive media .
Corrosion Resistance Performance
The DIN 1.4980 stud bolt demonstrates superior corrosion resistance across multiple environments, making it the preferred choice for critical applications.
The DIN 1.4980 stud bolt demonstrates superior corrosion resistance across multiple environments, making it the preferred choice for critical applications.
Oxidation Resistance: At 650°C, the oxidation rate is only 0.02 mm/year, significantly outperforming 304 stainless steel which exhibits 0.15 mm/year at the same temperature. The high chromium and nickel content promotes formation of a dense Cr₂O₃ protective layer.
Chemical Corrosion Resistance:
- In 10% sulfuric acid: <0.01 mm/year vs. 316 stainless at 0.5 mm/year
- In 20% sodium hydroxide: 0.005 mm/year
- In 3.5% sodium chloride: pitting potential reaches 1.2 V vs. 0.3 V for 304 stainless
- In 10% sulfuric acid: <0.01 mm/year vs. 316 stainless at 0.5 mm/year
- In 20% sodium hydroxide: 0.005 mm/year
- In 3.5% sodium chloride: pitting potential reaches 1.2 V vs. 0.3 V for 304 stainless
Stress Corrosion Cracking Resistance: In boiling 42% magnesium chloride solution, fracture time exceeds 1000 hours, compared to just 24 hours for 304 stainless.
Applications
These stud bolts are widely specified in:
- Aerospace: turbine engine fasteners, structural components
- Petrochemical: H₂S-containing oil and gas wells, service life exceeding 10 years
- Nuclear power: high-temperature, high-pressure water environments
- Marine engineering: seawater service, service life 3× longer than 316 stainless
- Gas turbines and boilers: high-temperature flange connections
These stud bolts are widely specified in:
- Aerospace: turbine engine fasteners, structural components
- Petrochemical: H₂S-containing oil and gas wells, service life exceeding 10 years
- Nuclear power: high-temperature, high-pressure water environments
- Marine engineering: seawater service, service life 3× longer than 316 stainless
- Gas turbines and boilers: high-temperature flange connections
Technical Specifications
| Parameter | Value |
| Material | DIN 1.4980 / UNS S66286 / A-286 |
| Standard | ANSI, DIN |
| Size Range | 5/16″ to 4″ |
| Grade | A |
| Tensile Strength | 895 N/mm² |
| Elongation | 25% |
| Max Service Temp | 650°C |
| Min Service Temp | -196°C |
FAQ
1. What material is DIN 1.4980 equivalent to?
DIN 1.4980 is equivalent to UNS S66286, Alloy A-286, and ASTM A453 Grade 660.
1. What material is DIN 1.4980 equivalent to?
DIN 1.4980 is equivalent to UNS S66286, Alloy A-286, and ASTM A453 Grade 660.
2. What is the maximum operating temperature?
The maximum service temperature is 650°C for long-term exposure.
The maximum service temperature is 650°C for long-term exposure.
3. Is this stud bolt suitable for marine environments?
Yes, it offers excellent pitting and crevice corrosion resistance in seawater, with service life three times longer than 316 stainless steel.
Yes, it offers excellent pitting and crevice corrosion resistance in seawater, with service life three times longer than 316 stainless steel.
4. What standards does this product comply with?
It complies with both ANSI and DIN standards.
It complies with both ANSI and DIN standards.
5. What size range is available?
Sizes range from 5/16 inch up to 4 inches.
Sizes range from 5/16 inch up to 4 inches.
6. What is the tensile strength?
The tensile strength is 895 N/mm² with 25% elongation.
The tensile strength is 895 N/mm² with 25% elongation.
7. Is this material suitable for cryogenic applications?
Yes, the minimum service temperature is -196°C.
Yes, the minimum service temperature is -196°C.
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