Welcome to the official website of Tai'an City Zhenzheng Steel Ball Manufacturing Co., Ltd.!

Taian City Sincere Steel Balls

Product Category

SUS420/SUS420C stainless steel ball

420 stainless steel balls are commonly used in industries that demand both high precision and excellent rust resistance: motorcycle parts, pulleys, stainless steel bearings, plastic bearings, crafts, valves, and petroleum applications.

Category:

Stainless steel ball

Request for quotation

Send an email

Keywords:

Stainless steel ball

Detailed introduction

Application areas:

Material Comparison:

The domestic 420 steel balls are mainly divided into two categories: 2Cr13 steel balls (corresponding to the Japanese standard: SUS420J1 stainless steel balls) and 3Cr13 steel balls (corresponding to the Japanese standard: SUS420J2 stainless steel balls). Both types of steel balls have hardness. However, many customers mistakenly believe that 410 stainless steel balls (corresponding to the Chinese national standard: 1Cr13 steel balls) and 430 stainless steel balls (1Cr17 steel balls) also possess similar hardness. Although these two types of steel balls both belong to the 4-series stainless steel category, their microstructural compositions differ: one is martensitic steel, while the other is ferritic steel.

Features:

The main product of martensitic steel, commonly known as stainless iron, is magnetic and boasts excellent rust resistance. It has a relatively high hardness, ranging from HRC50 to 55.

	420 Chemical Composition Table	Chemical Composition Table for 420C/4Cr13	Chemical Composition Table for 420C/5Cr13
C (Carbon)	≤0.26 - 0.35	≤0.36–0.45	≤0.43–0.5
Silicon (Si)	≤1.00	≤0.60	≤1.00
Mn (manganese)	≤1.00	≤0.80	≤1.00
P (Phosphorus)	≤0.035	≤0.035	≤0.040
S (sulfur)	≤0.03	≤0.03	≤0.03
Nickel	≤0.60	≤0.60	≤0.60
Cr (chromium)	12 - 14	12-14	12.5–14.5
Molybdenum	≤0.75	-	-