Alloy S41500 / 1.4418 / 0Cr13Ni5Mo / F6NM Alloy Stainless Steel Round Bar Hot Rolled ASTM A276

Alloy S41500 / 1.4418 / 0Cr13Ni5Mo / F6NM Alloy Stainless Steel Round Bar Hot Rolled ASTM A276

Products Specification

0Cr13Ni5Mo Stainless Steel Bar: Properties, Applications & SEO-Optimized Guide

What Is 0Cr13Ni5Mo Stainless Steel Bar?

Chemical Composition of 0Cr13Ni5Mo

• Carbon (C): ≤0.05%
• Chromium (Cr): 12.0–14.0%
• Nickel (Ni): 4.5–5.5%
• Molybdenum (Mo): 0.5–1.0%
• Manganese (Mn): ≤1.0%
• Silicon (Si): ≤0.75%
• Phosphorus (P): ≤0.04%
• Sulfur (S): ≤0.03%

Mechanical Properties

• Tensile Strength: ≥780 MPa (113 ksi)
• Yield Strength: ≥620 MPa (90 ksi)
• Elongation at Break: ≥15%
• Hardness: 22–32 HRC
• Impact Toughness: ≥50 J (at room temperature)

Corrosion Resistance

• Atmospheric conditions
• Freshwater and seawater environments
• Mild acidic or alkaline solutions
• Chloride-containing media (better than standard martensitic steels)

Fabrication and Heat Treatment

• Machinability: Good machinability when annealed; proper lubrication and tooling are recommended for optimal results.
• Weldability: Can be welded using TIG, MIG, or submerged arc welding. Preheating (100–200°C) and post-weld tempering (600–650°C) are advised to prevent hydrogen cracking.
• Heat Treatment Steps:
  • Annealing: 800–850°C, slow cooling to improve ductility.
  • Quenching: 950–1050°C, oil or air cooling to achieve martensitic structure.
  • Tempering: 200–650°C (adjusted based on required hardness-toughness balance).

Common Applications of 0Cr13Ni5Mo Stainless Steel Bar

• Marine Engineering: Ship propeller shafts, offshore platform components, and seawater pumps.
• Oil & Gas Industry: Valves, wellhead equipment, and pipelines in mildly corrosive environments.
• Aerospace: Landing gear components, structural parts, and fasteners.
• Hydraulic Systems: High-pressure cylinders and shafts.
• Chemical Processing: Equipment for non-aggressive chemical media.
• Military & Defense: Armor components and tactical gear.

Advantages of 0Cr13Ni5Mo Stainless Steel

• High Strength-to-Weight Ratio: Suitable for lightweight, load-bearing structures.
• Toughness in Low Temperatures: Maintains ductility in cold environments.
• Weldability with Proper Procedures: Enables complex component fabrication.
• Cost-Effective vs. High-Nickel Alloys: Balances performance and affordability.
• Customizable Properties: Heat treatment allows tailoring for specific applications.

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Standards and Specifications

• Chinese Standards:
  • GB/T 20878 (Stainless Steel Grades)
  • GB/T 1220 (Stainless Steel Bars)
• International Equivalents:
  • ASTM A276 (Type 415)
  • UNS S41500
  • EN 10088-3 (X2CrNiMo13-5-2)

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