Stainless Steel 13-8Mo Sheets & Plates

Stainless Steel 13-8Mo Sheets & Plates Manufacturer, Supplier & Exporter in Mumbai, India

Virami Steel Hub is a trusted manufacturer, supplier, stockist, and exporter of premium-quality Stainless Steel 13-8Mo Sheets & Plates in Mumbai, India. We specialize in providing high-performance precipitation-hardening stainless steel products known for their high strength, excellent toughness, and superior corrosion resistance.

Our SS 13-8Mo sheets and plates are manufactured using top-grade raw materials and advanced processing techniques to ensure precise dimensions, excellent surface finish, uniform mechanical properties, and long service life. We cater to both domestic and international markets, including the USA, Europe, the Middle East, Africa, and Southeast Asia.

With a strong commitment to quality and innovation, Virami Steel Hub delivers stainless steel solutions for critical and high-performance applications.

What are Stainless Steel 13-8Mo Sheets & Plates?

Stainless Steel 13-8Mo sheets and plates are precipitation-hardening martensitic stainless steel flat products designed to offer a combination of high strength, excellent toughness, and good corrosion resistance.

13-8Mo is known for its ability to achieve high strength through heat treatment while maintaining ductility and resistance to stress corrosion cracking.

Key Functions:

  • Provide high strength in structural applications
  • Offer good corrosion resistance
  • Enable precision fabrication and machining
  • Perform well in high-stress environments

Chemical Composition of Stainless Steel 13-8Mo

SS 13-8Mo has a carefully balanced composition that enhances strength and corrosion resistance.

Typical Composition:

  • Chromium (Cr): 12.25% – 13.25%
  • Nickel (Ni): 7.5% – 8.5%
  • Molybdenum (Mo): 2.0% – 2.5%
  • Aluminum (Al): 0.90% – 1.35%
  • Carbon (C): ≤ 0.05%
  • Manganese (Mn): ≤ 0.10%
  • Silicon (Si): ≤ 0.10%
  • Iron (Fe): Balance

Nickel enhances toughness, while molybdenum improves corrosion resistance and strength.


Key Features of SS 13-8Mo Sheets & Plates

Stainless Steel 13-8Mo offers exceptional advantages:

  • High Strength and Hardness (Through Heat Treatment)
  • Excellent Toughness
  • Good Corrosion Resistance
  • Superior Stress Corrosion Cracking Resistance
  • Excellent Fatigue Resistance
  • Good Fabrication and Machinability
  • Dimensional Stability During Heat Treatment
  • Long Service Life in Critical Applications

Mechanical Properties

SS 13-8Mo offers outstanding mechanical performance:

  • Tensile Strength: Up to ~1000–1400 MPa (depending on heat treatment)
  • Yield Strength: Up to ~900–1200 MPa
  • Elongation: ~10–15%
  • Hardness: High

These properties make it ideal for high-strength applications.


Physical Properties

  • Density: ~7.8 g/cm³
  • Melting Range: ~1400–1450°C
  • Modulus of Elasticity: ~200 GPa
  • Thermal Conductivity: ~11 W/m•K
  • Thermal Expansion: Moderate

Corrosion Resistance

SS 13-8Mo sheets and plates offer good resistance to:

  • Atmospheric corrosion
  • Mild chemical environments
  • Stress corrosion cracking
  • Industrial environments

However, it is not as corrosion-resistant as austenitic grades like 316 or 904L.


Heat Treatment

13-8Mo is a precipitation-hardening alloy and requires heat treatment to achieve optimal properties.

Heat Treatment Process:

  • Solution Annealing: ~925–955°C
  • Aging (Precipitation Hardening): ~480–620°C

This process significantly increases strength and hardness.


Weldability

SS 13-8Mo offers moderate weldability.

Welding Methods:

  • TIG (GTAW)
  • MIG (GMAW)

Best Practices:

  • Preheat may be required
  • Post-weld heat treatment recommended
  • Use compatible filler materials

Machinability

  • Good machinability in solution-annealed condition
  • Becomes harder after heat treatment
  • Use sharp tools and proper speeds
  • Apply coolant

Standards & Specifications

SS 13-8Mo sheets and plates are manufactured according to:

  • ASTM A693 – Precipitation hardening stainless steel
  • AMS 5629 / AMS 5864
  • ASME SA693

These standards ensure quality and reliability


Sizes & Specifications

  • Thickness: 0.5 mm to 100 mm
  • Width: Up to 2000 mm
  • Length: Custom sizes available

Surface Finish Options:

  • 2B Finish
  • BA (Bright Annealed)
  • No.1 Finish
  • Polished Finish

Applications of Stainless Steel 13-8Mo Sheets & Plates

SS 13-8Mo sheets and plates are widely used in high-performance industries:

  • Aerospace Industry Used in structural components and aircraft parts.
  • Defense Industry Used in high-strength components.
  • Oil & Gas Industry Used in high-pressure equipment.
  • Nuclear Industry Used in critical applications requiring strength and reliability.
  • Chemical Processing Used in high-stress environments.

Quality Testing & Inspection

Each sheet and plate undergoes strict quality checks:

  • Chemical composition testing
  • Mechanical testing
  • Dimensional inspection
  • Surface quality testing
  • Positive Material Identification (PMI)

Mill Test Certificates (MTC) and third-party inspection reports are provided.


Packaging & Delivery

  • Export-grade packaging
  • Protective wrapping to prevent damage
  • Proper labeling and traceability
  • Safe and timely global delivery

Why Choose Virami Steel Hub?

  • Trusted stainless steel supplier in Mumbai
  • Wide range of high-performance grades
  • Competitive pricing
  • Custom solutions available
  • Compliance with international standards
  • Strong export network
  • Dedicated customer support

Conclusion

Stainless Steel 13-8Mo Sheets & Plates are a high-strength, precipitation-hardening solution ideal for industries requiring exceptional strength, toughness, and reliability. Their superior mechanical properties and resistance to stress corrosion cracking make them suitable for critical applications.

With a focus on quality and performance, Virami Steel Hub delivers SS 13-8Mo sheets and plates that ensure long-term durability and efficiency.


FAQs – Stainless Steel 13-8Mo Sheets & Plates

(1)What is SS 13-8Mo used for?

SS 13-8Mo is used in aerospace, defense, oil & gas, and nuclear industries where high strength is required.

Yes, 13-8Mo offers significantly higher strength due to precipitation hardening.

Yes, it requires aging heat treatment to achieve its full strength.

Yes, it offers good corrosion resistance, though less than austenitic grades.

Yes, but proper procedures and post-weld heat treatment are recommended.

Aerospace, defense, nuclear, and oil & gas industries widely use them.

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