410 Stainless Steel Fittings – High-Strength, Heat-Treatable Solutions for Critical Applications
Meta Description: Discover 410 stainless steel fittings for high-pressure systems, oil & gas, valves, and pumps. Heat-treatable martensitic fittings with exceptional strength and corrosion resistance.
Introduction
410 Stainless Steel Fittings are a vital component in industries requiring high-strength, heat-resistant, and corrosion-resistant solutions for high-pressure systems and critical applications. Known for their martensitic structure, these fittings are a popular choice in oil & gas and petrochemical industries, where extreme pressure and temperature conditions are common. From Christmas trees to subsea wellheads, 410 stainless steel fittings provide unmatched reliability under high-stress environments.
One of the standout features of 410 stainless steel fittings is their ability to be quenched and tempered, enabling them to achieve maximum hardness and high tensile strength after heat treatment. These fittings are an ideal choice for high-pressure valves, pump casings, turbine components, and hydraulic systems where both strength and toughness are non-negotiable.
Compared to other materials, 410 stainless steel fittings are cost-effective while still providing excellent performance in moderate corrosion environments. This makes them a great alternative to duplex stainless steels or 17-4PH alloys, offering similar mechanical properties but at a lower cost.
Whether you need buttweld fittings, threaded fittings, or socket weld fittings, 410 stainless steel is designed to handle the toughest applications with ease. As the No.1 supplier of 410 stainless steel fittings, we provide seamless solutions tailored to your exact requirements, ensuring quick delivery, competitive prices, and unmatched quality.
Product Overview & Unbeatable Advantages
- Exceptional Strength: 410 stainless steel fittings provide outstanding tensile strength and hardness after heat treatment, making them ideal for high-pressure environments.
- Heat-Treatable Martensitic Fittings: Achieve up to 1000 MPa UTS with quenched and tempered 410 stainless steel, suitable for high-performance applications.
- Cost-Effective Alternative: 410 stainless steel offers similar mechanical performance to 17-4PH and duplex stainless steel but at a more affordable price, reducing overall project costs.
- Good Corrosion Resistance: While 410 is not highly resistant to severe corrosive environments like 304 or 316, it performs well in mild to moderate conditions, including H2S environments and mild acids.
- Fully Magnetic: As a martensitic stainless steel, 410 fittings are fully magnetic, which makes them ideal for applications requiring magnetic properties.
- Versatile Range of Fittings: Available in buttweld, threaded, and socket weld configurations, 410 stainless steel fittings can accommodate sizes from 1/2″ to 48″ NPS (buttweld) and 1/8″ to 4″ NPS (forged).
- High-Temperature Resistance: 410 stainless steel fittings are capable of withstanding elevated temperatures of up to 650°C, making them perfect for oil & gas, power plant, and chemical processing applications.
With these key advantages, 410 stainless steel fittings provide a reliable, cost-effective, and high-performance solution for demanding industries like oil & gas, refining, and petrochemical processing.
Chemical Composition
| Element | 410 Stainless Steel (%) |
|---|---|
| Carbon (C) | ≤0.15 |
| Chromium (Cr) | 11.5–13.5 |
| Manganese (Mn) | 1.0 |
| Silicon (Si) | 1.0 |
| Phosphorus (P) | ≤0.04 |
| Sulfur (S) | ≤0.03 |
| Nickel (Ni) | ≤0.75 |
| Molybdenum (Mo) | - |
| Iron (Fe) | Balance |
The chemical composition of 410 stainless steel fittings features high chromium content (11.5–13.5%), providing the material with corrosion resistance and strength. The low carbon content (≤0.15%) ensures that 410 fittings can be heat-treated for maximum hardness without suffering from sensitization.
Mechanical Properties
| Property | Annealed | Quenched & Tempered |
|---|---|---|
| Yield Strength (MPa) | 250–450 | 400–800 |
| Ultimate Strength (MPa) | 550–700 | 700–1000 |
| Elongation (%) | ≥20 | ≥15 |
| Hardness (HRC) | ≤22 | 35–55 |
410 stainless steel fittings offer superior strength and hardness after quenching and tempering. While the annealed version has lower hardness, it provides good ductility for cold working. In the quenched and tempered state, these fittings achieve up to 1000 MPa UTS, making them ideal for high-pressure systems.
Physical Properties
| Property | Value |
|---|---|
| Density (g/cm³) | 7.7 |
| Thermal Expansion (10⁻⁶/°C) | 10.4 |
| Thermal Conductivity (W/m·K) | 24.5 |
| Magnetic | Yes |
410 stainless steel fittings are fully magnetic, which is essential for certain magnetic applications. The material also offers moderate thermal expansion and conductivity, making it well-suited for use in high-temperature systems.
410 vs 410S vs 304 vs 316 vs 420 Fittings Comparison
| Property | 410 Stainless Steel | 410S Stainless Steel | 304 Stainless Steel | 316 Stainless Steel | 420 Stainless Steel |
|---|---|---|---|---|---|
| Hardness (HRC) | 22–55 | 22–25 | 30–35 | 30–35 | 40–50 |
| Weldability | Moderate | Excellent | Excellent | Excellent | Moderate |
| Corrosion Resistance | Moderate | Moderate | Excellent | Excellent | Moderate |
| Cost | Low | Moderate | High | High | Moderate |
| Pressure Rating | High | High | Moderate | Moderate | High |
410 stainless steel fittings offer good weldability and corrosion resistance at a lower cost compared to 304 and 316 stainless steel fittings. 410S offers improved weldability due to its reduced carbon content, making it the preferred choice for welded applications.
Available Types & Specifications
| Type | Size (NPS) | Wall (Sch) | Pressure Rating | Standards | Surface Finish |
|---|---|---|---|---|---|
| Buttweld Fittings | 1/2″–48″ | Sch 10S–XXS | 2000# to 9000# | ASTM A403 WP410, A182 F410 | Pickled, Bright Annealed, Polished |
| Threaded & Socket Weld | 1/8″–4″ | Sch 10S–XXS | 2000# to 6000# | ASME B16.11, MSS SP-43 |
We offer 410 stainless steel fittings in a variety of sizes and pressure ratings, including buttweld, threaded, and socket weld types. Fittings are available in sizes ranging from 1/2″ to 48″ NPS for buttweld fittings and 1/8″ to 4″ NPS for forged fittings, with pressure ratings ranging from 2000# to 9000#.
Heat Treatment Guide for 410 Stainless Steel Fittings
410 stainless steel fittings undergo heat treatment for maximum strength and hardness. Annealing is performed at 760–815°C to improve ductility, while quenching at 950–1050°C followed by tempering at 150–650°C achieves a final hardness of 35–55 HRC.
Major Applications
- Oil & Gas Christmas Trees
- Subsea Wellheads
- High-Pressure Valves
- Pump Casings
- Hydraulic Systems
- Turbine Components
- Petrochemical Cracking Units
- Marine Propeller Shaft Couplings
- Mining Slurry Lines
Product Images
410 Stainless Steel Fittings – High-Strength, Heat-Treatable Solutions for Critical Applications
Large Inventory of 410 Stainless Steel Fittings – Ready for Immediate Delivery
410 Stainless Steel Fittings in Real-World Applications – Oil & Gas and High-Pressure Systems
Why We Are the Best 410 Stainless Steel Fittings Distributor
- Largest stock of 410 stainless steel fittings (>5000 tons annually)
- In-house heat treatment & cryogenic facility
- 100% PMI, ultrasonic, & magnetic particle testing
- Fast global delivery & competitive pricing
- Custom machining, beveling, and threading services
Packaging & Quality Assurance
Each order is carefully packed in wooden cases, with plastic wrapping and a full certification package for your peace of mind.
FAQ Section
-
Is 410 stainless steel fittings magnetic?
Yes, 410 fittings are fully magnetic. -
Can 410 fittings be hardened after welding?
Yes, 410 fittings can be hardened after welding through tempering. -
Difference between 410 and 410S fittings?
410S has lower carbon content, which improves weldability. -
Maximum working pressure at 500°C?
410 fittings can withstand high pressures at temperatures up to 500°C. -
Recommended welding filler for 410 fittings?
ER410 is the recommended filler for 410 fittings. -
Corrosion resistance in H2S (sour service)?
410 fittings perform well in mild H2S environments but should be tested for sour service compliance. -
NACE MR0175 / ISO 15156 compliance?
Yes, 410 fittings are compliant with NACE MR0175. -
Minimum order quantity?
We offer flexible MOQs depending on your needs. -
Lead time for 3000# socket weld 410 fittings?
Typical lead time is 7-14 days for 3000# socket weld 410 fittings. -
Can 410 fittings be used in seawater?
410 fittings are suitable for seawater applications with proper care and maintenance.
Conclusion + Urgent Call-to-Action
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