High Strength Martensitic Stainless Steel 18NI300 Round Steel Bar 8.2g/cm3

Product Specification

High strength martensitic stainless steel 18NI300 round steel bar, forged forging bar density 8.2 g/cm ³

Introduction to 18ni300 material:

18Ni300 is a high-strength and high toughness mold steel material, belonging to martensitic aging steel, with excellent strength and rigidity, widely used in the field of mold manufacturing. ‌‌

The specific composition of 18Ni300 includes elements such as carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), nickel (Ni), cobalt (Co), molybdenum (Mo), titanium (Ti), and aluminum (Al). The nickel content ranges from 18.0% to 19.0%, the cobalt content ranges from 8.5% to 9.5%, the molybdenum content ranges from 4.6% to 5.2%, the titanium content ranges from 0.5% to 0.8%, and the aluminum content ranges from 0.05% to 0.15%. This material enjoys a high reputation worldwide due to its excellent performance and wide range of applications.

The "18" of 18Ni300 represents a nickel (Ni) content of 18% in the steel, while "300" usually represents its yield strength grade. This type of steel is known for its high yield strength, good toughness, and wear resistance, making it an ideal choice in the field of mold manufacturing. It has not only been widely used in mold manufacturing in industries such as automotive, electronics, home appliances, plastics, and rubber, but also meets the demand of these industries for mold materials to withstand harsh environments such as high temperature, high pressure, and corrosion due to its high strength, high toughness, good wear resistance, and corrosion resistance.

The density of 18Ni300 is 8.2 g/cm ³. ‌‌

The chemical composition of 18Ni300 includes:

Carbon (C) ≤ 0.03
Nickel (Ni) 18-19
Cobalt (Co) 8.5-9.5
Molybdenum (Mo) 4.6-5.2
Titanium (Ti) 0.5-0.8
Aluminum (Al) 0.05-0.15
Phosphorus (P) ≤ 0.01
Sulfur (S) ≤ 0.01
Silicon (Si) ≤ 0.1
Manganese (Mn) ≤ 0.1.

The advantages of 18Ni300 mainly include high strength, good toughness, excellent corrosion resistance, good high temperature resistance, and excellent mechanical properties. ‌

High strength and good toughness: 18Ni300 has excellent tensile strength and yield strength, which makes it very suitable for engineering applications that can withstand high loads and impacts. At the same time, it maintains good toughness and is not easily broken when subjected to impact and vibration loads, ensuring the safety and reliability of the material.

Excellent corrosion resistance: 18Ni300 contains a certain proportion of nickel and chromium elements, which makes it have excellent corrosion resistance, especially suitable for strong corrosive environments such as marine environments. This characteristic makes 18Ni300 widely used in aerospace, marine engineering, nuclear engineering and other fields.

Good high temperature resistance: 18Ni300 can be used for a long time in harsh environments, with good corrosion resistance and high temperature resistance, which allows it to maintain good performance in high temperature and corrosive environments.

Excellent mechanical properties: Through appropriate heat treatment processes, 18Ni300 can achieve grain refinement, further improve the strength and hardness of the material, while maintaining excellent toughness. This toughening method ensures that 18Ni300 not only maintains strength but also improves the toughness of the material, making it very suitable for manufacturing components that require both high strength and high toughness.

The application fields of 18Ni300 alloy steel are very wide, mainly including rocket engine shells, missile shells, shafts, gears, bearings, high-pressure sensors, fasteners, springs, aluminum alloy extrusion molds and casting molds, precision molds, cold stamping molds, etc. In addition, 18Ni300 alloy steel is also used in the field of 3D printing, which can be used to manufacture high-temperature components such as engine blades and combustion chambers, as well as components such as heat exchangers and turbine disks in gas turbines, nuclear power plants, and other fields. Meanwhile, 18Ni300 alloy is also suitable for the medical field, used to manufacture customized medical devices and implants, utilizing its biocompatibility and corrosion resistance.