Dear Valued Customers, We would like to inform you that Fushun Metal will be closed for the Chinese New Year holiday from January 24th to February 5th, 2025. We will resume normal operations on February 6th, 2025. During this period, our email address [email protected] will remain monitored for urgent inquiries. Our team will respond to…

Introduction The CK55 spring steel strip is a high-quality carbon steel known for its excellent hardness and strength. Its adaptability to cold rolling processes makes it an ideal material for manufacturing various types of springs used across industries. Understanding the intricacies of the cold rolling process for CK55 is crucial for factories aiming to produce…

Introduction: AISI 301 stainless steel spring strip represents a crucial material in modern spring manufacturing, known for its exceptional combination of strength, durability, and corrosion resistance. This austenitic stainless steel grade has become increasingly popular in precision engineering applications due to its unique ability to maintain mechanical properties under varying conditions. Understanding its characteristics and…

FUSHUN Successfully Delivers Premium 75Ni8 Spring Steel Strip to Mexican Market   We are pleased to announce the successful delivery of 15 tons of precision-engineered 75Ni8 steel strip to our valued customer in Mexico. This specialized order featured strips with thicknesses ranging from 0.91mm to 1.37mm and widths from 50mm to 203mm, delivered in lead-quenched…

### Types of Heat Treatment for Springs Spring materials can be made from **steel** and **non-ferrous metals**, but most are steel materials. The raw materials come in various forms such as **bars**, **wires**, **plates**, and **strips**. Some materials are supplied after undergoing processes like **hot-rolling**, **cold-rolling**, **cold-drawing**, followed by **annealing**, **quenching and tempering**, or **bainitic…

### Characteristics of the Spring Manufacturing Process The quality of springs after heat treatment is primarily determined by their **lifespan**. From a performance perspective, it is essential to adjust the balance between **elasticity parameters** and **toughness parameters**. The performance of the spring is closely related to the **hardenability** of the spring steel. Currently, spring manufacturing…

### Characteristics of Spring Steel Spring steel must first possess a **high elastic limit** and a **high yield-to-tensile strength ratio** to prevent permanent deformation of the spring under high loads. Secondly, it should have a **high fatigue limit** and **high tensile strength** to avoid fatigue failure due to long-term vibration and alternating load stresses. Additionally,…

After the launch of Baosteel Desheng’s new production line, the 400-series stainless steel production-sales-research team began leading the trial manufacturing of martensitic stainless steel products. During the initial production phase, the trial-manufactured 30Cr13 product exhibited “water ripple” defects when used by slant-grind knife users, showing bright white streaks on the blades. This could not meet…

In August 2024, Chinese steel mills launched a new series of nitrogen-containing martensitic stainless steel called THiE for the market. When applied to knife production, THiE exhibits high initial sharpness, edge retention, and corrosion resistance, making it a high-performance, economical martensitic stainless steel. The numbers 3, 4, and 5 in 3-chrome, 4-chrome, and 5-chrome steel…