Stainless Steel 321H Hex Bolts 1/2”-20 and Color Coated Finish for
High Temperature Uses
Product Description:
Hex Bolts: Applications and Advantages
Hex bolts are widely used across various industries and products
due to their simple design, high strength, and ease of
installation. Below are some key applications and advantages of hex
bolts:
Industries and Products That Use Hex Bolts
1. Construction Industry
- Hex bolts are commonly used in structural steel connections, such
as bridges, building frameworks, and scaffolding. Their ability to
handle heavy loads and external forces like wind ensures stability
and durability in construction projects.
2. Machinery Manufacturing
- In machinery and equipment assembly, hex bolts are essential for
fastening mechanical parts in machinery such as lathes, heavy-duty
equipment, and assembly lines. Their high strength and durability
make them suitable for machines operating under vibration and heavy
loads.
3. Automotive and Transportation
- Hex bolts are widely used in the automotive industry for securing
critical parts like chassis, engines, and transmission systems.
Their strength and reliability help maintain the vehicle's
integrity under high-speed and heavy-duty conditions.
4. Home Appliances and Electronics
- Hex bolts are used to assemble and secure parts in appliances
such as air conditioners, washing machines, and televisions. They
provide reliable connections and ensure the overall stability of
the products.
5. Energy and Petrochemical Industry
- Hex bolts are crucial in wind turbines, nuclear power plants, and
petrochemical plants, where they are used in securing large
equipment and pipeline systems. Their corrosion resistance and
strength allow them to perform in harsh environments.
6. Marine and Offshore Engineering
- In shipbuilding and offshore platforms, hex bolts are used to
secure deck fittings, hulls, and equipment. Stainless steel hex
bolts, in particular, resist corrosion from seawater, ensuring the
longevity of marine structures.
7. Furniture Manufacturing
-Hex bolts are frequently used in the assembly of furniture such as
beds, tables, chairs, and cabinets. Their easy installation and
firm fastening provide stability and long-term durability to
household and office furniture.
Applications:
1, 321H belongs to the American Standard austenitic heat-resistant
steel forgings, the implementation of the standard: ASTM A959-2011
321H is a titanium-stabilised austenitic stainless steel with good
overall corrosion resistance.It has excellent resistance to
intergranular corrosion at temperatures exposed to carbon carbide
precipitation in the range of 800-1500°F (427-816°C).The alloy
resists oxidation to 1500°F (816°C) and has higher creep and stress
rupture properties than alloys 304 and 304L.It also has good low
temperature toughness.
2, 304: is a common material in stainless steel, density 7.93
g/cm3, the market common labelling methods in 06Cr19Ni10, SUS304.
Two characteristics are different
1, 321: with excellent high temperature stress break (Stress
Rupture) performance and high temperature resistance to latent
change performance (Creep Resistance) stress mechanical properties
are better than 304 stainless steel.
2, 304: 304 in the most important elements are Ni, Cr, but not
limited to these two elements.Specific requirements specified by
the product standard.Industry common judgement that as long as the
Ni content is greater than 8%, Cr content is greater than 18%, can
be considered as 304 stainless steel.
| No. | C% | Cr% | Ni % | Mo % |
| 304 | 0.07 | 17.5-19.5 | 8.0-10.5 | / |
| 316 | 0.08 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
| 301 | 0.15 | 16.0-18.1 | 6-8 | / |
| 310 | 0.08 | 24-26 | 19-22 | / |
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