Steel 18NiCrMo5
A perfect balance of strength, wear resistance and hardness. Ideal for automotive parts and heavy-duty machinery.

PROS
- High strength and toughness
- Excellent fatigue resistance
- Good machinability
- Widely used in the aerospace and defense industries
CONS
- Low corrosion resistance
- More expensive than other steel varieties
- It requires specialized welding techniques
MAIN FEATURES
- Machining process: CNC machining
- Tolerances: ±0,1mm ±0,07mm ±0,05mm
- Max size: 300 x 300 x 100 mm; 11.8 x 11.8 x 3.9 in
- Lead time: <6 days
ALLOY STEEL 18 VIDEO GALLERY
High strength and toughness
It is designed to withstand the most demanding applications, ensuring high performance and a long service life. Its unique properties make it ideal for automotive, aerospace and heavy machinery construction.
Excellent fatigue resistance
It offers outstanding longevity and reliability, even in the most demanding high-stress applications. Its excellent fatigue resistance makes it the ideal choice for industries where parts are subjected to repeated stress, such as automotive, heavy machinery and aerospace.
Widely used in the aerospace and defense industries
It is a material widely used in the aerospace and defense industries due to its high strength, toughness and fatigue resistance. Its excellent properties meet the requirements of these industries, ensuring reliable performance, durability and light weight.
ALLOY STEEL 18 IMAGE GALLERY
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Excellent fatigue resistance: The higher fatigue resistance of this alloy ensures it can handle repetitive stress cycles, making it ideal for industries where parts must withstand high-stress environments.
Good machinability and formability: Ease of machining and forming of Steel 18 allows complex parts to be created while maintaining precision and tight tolerances.
"We recently partnered with Weerg to manufacture our Steel Alloy 18 (AISI 4317) components, and the results were outstanding! Weerg's precision and expertise, combined with AISI 4317 exceptional properties, produced top-notch parts. We highly recommend Weerg for your AISI 4317 manufacturing needs – a winning combination!"
alloy steel 18 PROPERTIES
Tensile breaking load | 690 MPa |
Modulus of elasticity | 205 GPa |
Elongation at break | 16% |
Density | 7,85 g/cm³ |
Melting temperature | 1643°C |
Hardness | 210 Brinell |
Yield Strength | 828 MPa |
"Our company chose Weerg to produce our Steel Alloy 18 (AISI 4317) parts, and we couldn't be happier! The combination of Weerg's cutting-edge technology and the superior qualities of AISI 4317 resulted in high-performance components that exceeded our expectations. Weerg is the go-to choice for AISI 4317 parts – highly recommended!"
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