What are Stainless Steel 304H Fasteners?

Stainless Steel 304H Fasteners are high carbon austenitic stainless steel fastening components intended for use in high temperature environments. The higher carbon content than the general grade 304 has made 304H Stainless Steel Fasteners more strong, with a good creep resistance, and endurance at over 500°C. These fastening components (including bolts, nuts, stud bolts, washers, socket screws, anchor fasteners and threaded rods) are produced by ASTM, and ASME standards and suitable for rigorous industrial settings like power generation, petro-chemical plants, refineries, heat exchangers, and pressure vessels.

Premium Quality Stainless Steel 304H Fasteners

The most trusted manufacturers and suppliers of Stainless Steel 304H Fasteners in India, we develop and supply Stainless Steel fasteners specifically designed to perform to the best of its ability in high temperature as well as in corrosive working conditions. The fastening solution provided is produced using high grade raw materials and with rigorous quality standards to enable the dimensional accuracy, endurance and serviceability.

As one of the experienced Stainless Steel 304H Fasteners Manufacturer in Mumbai, India, we render the fastening solutions that adhere to the standards of the international market as well as the specific project requirement of our clients. Our wide range includes the following: bolts, nuts, washers, screws, threaded rods, anchor fasteners and custom fabricated fastening components that cater to demanding industry sectors.

An increased carbon content in Stainless Steel S30409 Fasteners enhances its high temperature strength, although its excellent corrosive resistance is same as the 304 stainless steel family. Hence they can be extensively utilized in heat exchangers, pressure vessels, boilers, furnaces, chemical process equipments, thermal power plants etc.

Our clients can source standard inventory as well as custom fabricated products with complete surety of delivering fastening systems suitable for the most demanding working environments.

What is Stainless Steel 304H?

Stainless Steel 304H or UNS S30409 is a high carbon modification of Type 304 Stainless steel developed for elevated-temperature service. Controlled carbon content offers better tensile strength and creep resistance at high temperature while retaining very good resistance to oxidation.

Characteristic properties of Stainless Steel 304H Fasteners:

  • Excellent high-temperature strength
  • Superior creep resistance
  • Outstanding oxidation resistance
  • Good corrosion resistance
  • Excellent fabrication characteristics
  • Long-term thermal stability
  • High durability and service life
  • Suitable for pressure-containing equipment

With these properties SUS 304H Fasteners find wide use in industrial applications which require service and components at high temperatures and subject to high thermal cyclic conditions.

Stainless Steel 304H Fasteners

Stainless Steel 304H Fasteners Specifications

Specification Details
Material Grade Stainless Steel 304H
UNS Number S30409
Werkstoff Number 1.4948
ASTM Standards ASTM A193, ASTM A194
ASME Standards ASME SA193, ASME SA194
Available Types Bolts, Nuts, Washers, Screws, Stud Bolts, Threaded Rods
Size Range M3 to M100
Length Custom Cut Lengths Available
Thread Type Metric, UNC, UNF, BSW
Standards DIN, ISO, ASTM, ASME, BS
Finish Plain, Polished, Passivated, PTFE Coated

Types of SS 304H Fasteners We Supply

We manufacture and supply a comprehensive range of Stainless Steel S30409 Fasteners to meet diverse industrial requirements.

➤ Stainless Steel 304H Hex Bolts

Designed for structural and industrial assemblies requiring high clamping force and excellent mechanical strength.

➤ 304H Stainless Steel Stud Bolts

Widely used in pressure vessels, pipelines, heat exchangers, and flange connections where secure fastening is essential.

➤ SS 304H Socket Screw

Manufactured with precision threads and superior dimensional accuracy for machinery and equipment applications requiring high torque performance.

➤ SS 304H Washers

These can be used to distribute loads and prevent damage to mating surfaces, and enhance fastener joint integrity.

➤ Stainless Steel 304H Anchor Fasteners

Used for construction, industrial applications and other demanding installations requiring a high degree of anchorage.

➤ Stainless Steel 304H Nuts

In hex nuts, lock nuts, heavy hex nuts, and custom configurations for demanding fastening systems.

➤ ASTM A193 Stainless Steel 304H Fastener

Manufactured to ASTM standards to support high temperature and high pressure service typically in the energy and process industries.

➤ ASME SA194 SS 304H Fasteners

Developed to meet critical ASME specification for pressure retaining equipment and industrial processing systems.

Chemical Composition of Stainless Steel 304H Fasteners

Element Composition (%)
Carbon (C) 0.04 – 0.10
Chromium (Cr) 18.0 – 20.0
Nickel (Ni) 8.0 – 11.0
Manganese (Mn) 2.00 Max
Silicon (Si) 1.00 Max
Phosphorus (P) 0.045 Max
Sulfur (S) 0.030 Max
Nitrogen (N) 0.10 Max
Iron (Fe) Balance

Mechanical Properties of Stainless Steel S30409 Fasteners

Property Value
Tensile Strength 515 MPa Min
Yield Strength 205 MPa Min
Elongation 40% Min
Hardness 92 HRB Max
Density 8.0 g/cm³
Melting Range 1400 – 1450°C

Advantages of Stainless Steel 1.4948 Fasteners

  • Superior High-Temperature Performance: The elevated carbon content improves strength retention at high operating temperatures.
  • Excellent Corrosion Resistance: Performs effectively in atmospheric, chemical, and industrial environments.
  • Enhanced Creep Resistance: Maintains structural integrity during prolonged exposure to elevated temperatures.
  • Long Service Life: Offers reduced maintenance costs and improved operational reliability.
  • Excellent Fabricability: Can be machined, welded, and fabricated into various fastening configurations.

Applications of Stainless Steel 304H Fasteners

Our SS 304H Fasteners are widely used in:

  • Petrochemical Plants
  • Oil & Gas Industries
  • Power Generation Facilities
  • Refineries
  • Fertilizer Plants
  • Heat Exchangers
  • Pressure Vessels
  • Boilers
  • Pulp & Paper Industries
  • Food Processing Equipment
  • Chemical Processing Plants
  • Offshore Platforms
  • Thermal Power Stations
  • Industrial Furnaces

Why Select Us as a Stainless Steel 304H Fasteners Supplier?

Being the topmost Stainless Steel 304H Fasteners Supplier we make sure to provide international standards products according to customer's project specification.

Our Strengths:
  • Good inventory level
  • Competitive rates
  • Compliance with international standards
  • Quick deliveries
  • Full material trace-ability
  • Third party inspection facility
  • Custom made manufacturing facility
  • Large export network

Through supplying to multiple customers globally, we've secured our position in Stainless Steel 304H Fasteners Exporters in USA and worldwide.

Stainless Steel 304H Fasteners Suppliers and Dealers

Stainless Steel 304H Fasteners offer remarkable qualities of high-temperature strength, corrosion resistance, durability, and long-term reliability for a long lasting performance. If you need 304H Stainless Steel Stud Bolts, SS 304H Socket Screw, SS 304H Washers, Stainless Steel 304H Anchor Fasteners, or complete fastening solutions according to ASTM A193 Stainless Steel 304H Fastener and ASME SA194 SS 304H Fasteners specification; we assure you that we hold a range for all your industrial purposes.

With utmost concern for quality, in-depth technical knowledge and total customer commitment, we stand as the Stainless Steel 304H Fasteners Manufacturer in Mumbai, India and leading global supplier of Stainless Steel 1.4948 Fasteners, SUS 304H Fasteners and Stainless Steel S30409 Fasteners to all industrial segments where such items of use are required.

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Frequently Asked Questions (FAQ)

304H contains a higher carbon content than standard 304 stainless steel, providing improved high-temperature strength and creep resistance.
The UNS designation is S30409.
The Werkstoff number for 304H is 1.4948.
They are used in boilers, pressure vessels, refineries, power plants, heat exchangers, and high-temperature industrial systems.
Yes. ASTM A193 Stainless Steel 304H Fasteners are specifically designed for elevated-temperature and pressure-service applications.

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