Table of grades and properties of carbide rolls rings and related data

Grade Hardness (HRA) Transverse rupture strengh (Mpa) Compressive strength (Mpa) Density  g/cm3
YG15  ≥ 86.5  ≥2220 2985 13.95-14.15
YGH30  ≥ 83.5  ≥2520 3300 13.90-14.10
YGH40  ≥ 83  ≥2570 3200 13.60-13.8
YGH45  ≥ 82  ≥2570 3100 13.45-13.65
YGH55  ≥ 81  ≥2570 3000 12.90-13.10
YGR30  ≥ 83  ≥2360 3200 13.98-14.18
YGR40  ≥ 82  ≥2400 3200 13.60-13.80
YGR45  ≥ 80.5  ≥2250 3000 13.45-13.65
YGR55  ≥ 79  ≥2400 2800 13.00-13.20
YGR60  ≥ 78.5  ≥2200 2600 12.60-12.80
 
Recommended applications of grades for carbide roll rings
Grade Recommended applications
YG15 Cold rolling screwthread steel
YGH30 Moderate wear resistance and impact resistance,good for general purposes.Used in the last 1-4 stands or all stands of finish rolling mills.
YGH40 Best for general purposes.Used in the front stands of good mills and in the rear stands of common mills.
YGH45 Used in the first and second stands of finish rolling mills and in the stands of prefinish rolling mills.For every stand of the rolling lines for low speed rolling,low precision and unstable operation.
YGH55 Maxmun binder content in YGH series,good toughness and crack resistance.Used in the stands of prefinish rolling mills and for roll rings for hot rolling screw thread steel.
YGR30 Good toughness,wear resistance,corrosion resistance and crack resistance,Used in the middle and rear stands of finish rolling mills.
YGR40 Good toughness and thermal crack resistance.good for general purposes.Used in most stands of the finish rolling mills and in the rear stands of common mills.
YGR45 Good toughness and thermal crack resistance.Used in the front stands of finish rolling mills.
YGR55 Good impact resistance,Used in the stands of prefinish rolling mills for hot rolling screw thread steel bars and they can be machined with turning and milling.
YGR60 Good impact resistance and toughness.Used for hot rolling screw thread steel bars and in the first and second stands of prefinish rolling mills.

Other products

Tel:+86-731-28705418      Fax: +86-731-28510897
What's App:+86 1364733 8188
Website: www.cnwiretools.com
Email: sale6@zzbetter.com      sales@zzbetter.com
admin@zzbetter.com
Copyright © 2017-2018 All Rights Reserved
 Zhuzhou Better Tungsten Carbide Co., Ltd