Stainless Steel Rod
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Overview

420 STAINLESS STEEL BAR

420 is a hardenable martensitic stainless steel that contains at least 12% chromium, just enough to provide corrosion resistance. It has good ductility in the annealed condition but is capable of being hardened to a minimum Rockwell hardness of 50 HRC, the highest hardness of the 12% chromium grades. Due to its hardening characteristics, 420 is not often welded, although it is possible. Martensitic stainless steels are designed for high hardness, sometimes with other properties compromised to some extent. Corrosion resistance is lower than that of ordinary austenitic grades, and its effective operating range is limited by its loss of ductility at sub-zero temperatures and loss of strength due to over-tempering at elevated temperatures. The best corrosion resistance is achieved when the metal is hardened and the surface ground or polished.


Chemical composition
CSiMnCrSP
≤0.15≤1.0≤1.012.0~14.0≤0.03≤0.04

Physical properties
g/cm³Gpa10-6/ºCW/m*Kμohm.in
7.7420010.224.955

Mechanical properties
σb (MPa)σ0.2 (MPa)δ5 (%)hardness
≥634≥440≥20≤223HB,≥192HB


Materials & Certificates

证书

Factory & Shipping

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Customer factory inspection

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Company Introduction

Shandong Linhai International Trade Co., Ltd. is a professional supplier of steel and metal raw materials. Its main products include carbon steel, copper, stainless steel, profiles, and rare materials, which are used in construction, home appliances, aerospace, and other fields. The company is committed to providing the most reliable and satisfactory products to customers worldwide.

Leveraging its strong supply chain network, solid expertise, and reliable service, Linhai International Trade Co., Ltd. has become a leading steel supplier for numerous clients in countries and regions including the Middle East, South America, and Southeast Asia.

Adhering to the principle of "product quality is the foundation of survival, and service quality is the bridge to success," the company provides customers with high-quality service and satisfactory products, always prioritizing customer needs.

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