Product Description
Features
18Ni300 steel is an ultra-low carbon Fe-Ni alloy, which corresponds to the US grade M300 and the European grade 1.2709. 18Ni300 steel is made of carbon-free or micro-carbon martensite as matrix, and alloy compounds such as Mo, Co, Ti and Al are precipitated in the aging process to form a second phase strengthened ultra-high strength steel. Compared with traditional steel, 18Ni300 steel has excellent weldability, thermoplasticity, workability, and good toughness while having ultra-high strength.
Main chemical composition |
Oxygen and nitrogen content/Mechanical properties (Heat treatment) |
Fe: surplus |
Ni:17.0-19.0 |
Oxygen Content:≤500ppm |
Nitrogen Content:≤70ppm |
Co:8.5-10.0 |
Mo:4.5-5.2 |
Hardness/HRC:48-54 |
Compressive Strength/MPa:1950±50 |
Ti:0.8-1.1 |
Al:0.05-0.15 |
Yield Strength/MPa:1750±50 |
Elongation/%:8±2 |
Cr:≤0.60 |
Mn:≤0.15 |
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Application
This kind of steel is mainly used in precision forging dies and plastic molds.
Injection mold parts
Maraging steel: The 18Ni(200), 18Ni(250) and 18Ni(300) steels with yield strengths of 1400, 1700 and 1900MPa were obtained by age hardening by adding different contents of cobalt, molybdenum and titanium into Fe-Ni martensitic alloys. Applications Martensitic steel has been widely used in rocket engine shell, missile shell, uranium isotope centrifuge high-speed rotor, helicopter landing gear, high pressure vessel, rotor shaft, gear, bearing, high pressure sensor, fastener, spring, aluminum alloy extrusion die and casting die, precision die, cold die and so on.
Storage conditions
This product should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordinary goods transportation.
Company Profile
Lonwin Chemical Industry Group. is a company committing to contract synthesis and production of photoinitiators, fluorocarbon
surfactants, indicators, intermediates and APIs.Our company has ISO and REACH international certification, in Jiangsu, Anhui and
other places with decades of cooperation of OEM processing plants, to provide a more solid support for the customized production
service of special chemicals.
Now, our products are well sold in North America, Europe, Japan, South Korea and the Middle East, and customers are highly
satisfied with our products and service!
To achieve sustainable and steady development, we establish closely cooperative relationships with famous universities and
institutions of China. We regularly exchange information with them and make cooperation on the R&D of new technologies.
Sticking to the business philosophy of "quality first, credit first, service first, creativity first", we are doing our best to meet demands
of customers all around the world. We sincerely welcome your visit and business, and look forward to cooperating with you for
expanding international market together!


FAQ
Q1:Are you a factory or trading company?
A: Yes ,We are a factory.
Q2:What are the key properties of metal powder I should be concerned with when selecting one
kind of powder for my application?
A:The key properties of metal powder that define their performance level for different applications
include purity , particle size , impurity content , and loose density.
Q3:Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q4. How about the packing?
A:Usually we provide the packing as 50 kg Iron Drum or Paper Drum,if you have special requirements
on them, we will according to you.
Q5.Can you produce according to the sample we provided?
A: Yes, we can produce by your samples or technical parameters.
Q6.:How about the quality?
A:We can provide you with revelent certificates if necessary. 100%QC in produce process and before
the goods being packed up.