Entries by LK Alloys

17-7PH (SUS631) precipitation hardening stainless steel strip hardness

17-7PH precipitation hardening stainless steel is a kind of martensitic steel with good strength and processing performance. The overall performance of the alloy becomes better after heat treatment. The composition complies with the GB/T1220-2007 standard and can be used for parts such as springs. . 17-7PH contains a high content of chromium, up to 17%, […]

Hurricane-tracking satellites can also keep tabs on harmful microplastics in the ocean

The Cyclone Global Navigation Satellite System spacecraft were designed to track hurricanes but they can also monitor microplastics in the oceans. (Image credit: NASA) A satellite system designed to track hurricanes can reveal where damaging microplastics accumulate in the ocean. A new study now reveals why. In 2021, researchers from the University of Michigan and […]

Chromium-nickel alloy 600 and its processing technology

Alloy 600 (UNSN0660) is an alloy with nickel as the main component and resistance to various corrosion conditions. Alloy 600 (UNSN0660) can be used in low-temperature and high-temperature environments of 20000F (10930C). It has no magnetism and can be welded for corrosion resistance. Its nickel alloy content is high, and it has strong corrosion resistance […]

What is the material of 4142 round bar 4142 steel plate?

Introduction to 4142 alloy steel: 4142 steel is an ultra-high-strength steel with high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit, multiple impact resistance after quenching and tempering, and good low-temperature impact toughness. This steel is suitable for manufacturing large and medium-sized plastic molds that require a certain strength and toughness. […]

17-7PH hardening (RH950) low temperature quenching + aging

17-7PH or Type 631 (UNS S17700) is a chromium-nickel aluminum precipitation hardening stainless steel used for spring applications in numerous industries. 7-7 Precipitation hardening alloys can be formed in the soft austenitic state and hardened to high strength levels by low-temperature heat treatment. The low temperature allows for minimal deformation compared to conventional quench and […]

American scientists discover the highest toughness alloy still has ultra-high performance in extreme cold

The Berkeley National Laboratory in the United States has discovered that an alloy composed of chromium, cobalt, and nickel is the hardest material with the most fracture-resistant properties. The picture shows the nanoscale fracture path and accompanying crystal structure deformation of CrCoNi alloy during the 20 Kelvin stress test. Cracks expand from left to right […]

Welding method of martensitic stainless steel and duplex stainless steel

1. What are martensitic stainless steel and duplex stainless steel? The microstructure is martensitic at room temperature, and its mechanical properties can be adjusted by heat treatment. In layman’s terms, it is a type of hardenable stainless steel. The steel grades belonging to martensitic stainless steel include 1Cr13, 2Cr13, 3Cr13, 4Cr13, 3Cr13Mo, 1Cr17Ni2, 2Cr13Ni2, 9Cr18, […]

Orders from Australian customers

We received the customer’s Round Bar copper-nickel (90/10) inquiry in September, and the agreed delivery time is 20 days. Overall, everything is going according to plan. Unfortunately, the quantity requested by the customer is only 1 of each size. The customer is a careful person and requires samples to be sent first, and the order […]