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1.4418 (X4CrNiMo16-5-1) Stainless Steel Bar – High-Strength, Corrosion-Resistant Alloy
- Material Standard:Compliant with German DIN EN 10088-3.
- Key Attributes:Exceptional mechanical strength (yield strength up to 700 MPa).
- Superior corrosion resistance in acidic, alkaline, and saline environments.
- High-temperature stability (applicable up to 650°C).
- Good weldability and machinability.
Chemical Composition (wt%)
Element | Content (%) |
Carbon (C) | ≤0.06 |
Silicon (Si) | ≤0.70 |
Manganese (Mn) | ≤1.50 |
Phosphorus (P) | ≤0.040 |
Sulfur (S) | ≤0.030 |
Chromium (Cr) | 15.00–17.00 |
Nickel (Ni) | 4.00–6.00 |
Molybdenum (Mo) | 0.80–1.50 |
Nitrogen (N) | ≥0.020 |
Detailed Description of the Performance Characteristics and Applications of 1.4418 Stainless Steel Bar
1. Performance Characteristics
1.1 Corrosion Resistance
Excellent performance in weakly acidic or chloride-containing environments, significantly superior to ordinary carbon steel.
Resists corrosion from a variety of corrosive media, suitable for harsh working environments.
1.2 Mechanical Properties
High strength and hardness, capable of withstanding high loads and severe wear.
Combines good ductility and toughness, with stable cold deformation and weldability.
1.3 Processing and Heat Resistance
Easy to forging, rolling, cutting, and other forming processes.
Maintains stability and heat resistance in high-temperature environments.
2. Main Applications
2.1 Industrial Machinery
Manufacturing high-load components such as gears, shafts, and connecting rods for automobiles, ships, and construction machinery.
Manufacturing high-strength structural components such as bearings and springs.
2.2 Chemical and Food Equipment
Used in chemical storage tanks, pipelines, and reactors, resistant to acid and alkali corrosion.
Complies with food machinery hygiene standards, ensuring a sterile environment.
2.3 Special Environment Applications
Marine structural components, such as ship shafting, are resistant to saltwater corrosion.
Medical devices and surgical tools are biocompatible.
1.4418 stainless steel bar, due to its comprehensive properties, is the material of choice for industrial manufacturing and high-end applications.
Surface Treatment
- Standard:Ground/polished (Ra ≤0.8μm).
- Optional:Passivation or coating for enhanced corrosion resistance.
Why Choose Us ?
- ESR Process:Ensures uniform carbide distribution and purity.
- Certifications:ISO 9001, TS 16949, FDA-compliant for food-grade applications.
- Customization:Supports small-batch orders and special geometries.
Applications & Industries
Aerospace:
High-power density actuators.
Electronics:
Precision sensors & MEMS components.
Energy:
Magnetic coupling devices for turbines.
Frequently Asked Questions
Q: Can 1.4418 replace nickel-based alloys?
A: Yes, with 15% weight reduction and 45% cost savings in some cases.
Q: Is it weldable?
A: Yes, but pre/post-heat treatment is recommended.
Q: How does heat treatment affect hardness?
A: Aging at 500–600°C increases hardness from HRC 30–40 to HRC 40–50.
Q: What are alternatives to 1.4418?
A: 316L (lower strength, higher corrosion) or 17-4PH (higher strength, lower corrosion).
Q: What are surface finish options?
A: Polished (Ra ≤0.4μm), ground (Ra ≤1.6μm), or black oxide-coated.
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