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HOME ＞ PRODUCTS ＞ Roll ＞ High Speed Steel Ring & Sleeve
High Speed Steel Ring & Sleeve
    Publish time 2018-05-29 10:08    

Model: HSS

High Speed Steel Ring & Sleeve

Ring and sleeve are made by centrifugal casting with high alloy elements and special heat treatment. The metallographic structure is martensite c/w fine dispersed carbides such as MC, M2C, M6C. It has good high tempreture wear resistance because of its high percentage of alloy elements and secondary hardening. The hardness can reach HS76-92 with uniformity of hardness and groove wear. There is no remarkable decrease of surface hardness while working in high temperature 550℃. Its wear resistance is higher 3-5 times compared with traditional High NiCrMo indefinite chill cast or high Cr cast ring/sleeve. High speed steel ring/sleeve used widely in wire rod and bar mill and universal H section steel mill.

Chemical Composition: (%)

Code C Si Mn Cr Ni Mo V W
HSS-1 0.6-1.0 0.4-1.5 0.4-1.0 4.0-8.0 0.3-1.5 2.0-8.0 0.4-2.0 1.0-3.0
HSS-2 1.5-2.5 0.3-1.0 0.3-1.5 4.0-8.0 0.3-1.5 2.0-8.0 3.0-10.0 2.0-10.0


Physical Features:

Code Hardness (HS) Tensile Strength (MPa) Tensile Modules of Elasticity (kMPa)
HSS-1 70-90 ≥720 210-220
HSS-2 75-95 ≥750 210-220


Available Manufacturing Roll Range:

Type Barrel Dia. (mm) Barrel Length (mm)
Ring Φ260-800 500-1200
Sleeve Φ300-800 500-1100

Metallographic Structure: Martensite + Bainite + carbide

                         

Matrix, 500x                        Harness Profile