Centrifugally Casting High Cr Steel Mill Rolls

Centrifugally Casting High Cr Steel Mill Rolls1. Description
Hi Cr Steel Rolls are mainly used for rough stands (R1 & R2) of hot strip plate rolling mills and universal section rolling mills. We make this kind of roll by centrifugal cast, and the material of core is strength nodular iron. The working layer is Cr, Mo, Ni, V and other alloy element. The matrix structure is tempered martensite+carbide+ a little austenite. Becasue the microhardness of carbide is high, good wear resistance, and isolated block distribution of M7C3 type. By temperature-differential treatment, the rollers will be more wear resistance, thermal cracking resistance and high temperature performance.
2.Chemical Composition

Grade

C

Si

Mn

P

S

Cr

Ni

Mo

HiCrSteel

1.00-1.80

0.40-1.00

0.50-1.00

≤0.030

≤0.025

8.00-15.0

0.50-1.50

1.50-4.50

3.Mechanical Properties

TensileStrength(N/mm²)

>=350

NeckHardness(HSD)

35-45

4. Equipments
5.Machining6.Inspection and Delivery
TANGSHAN WEILANG is a full integrative enterprise who is dedicated to design, production, sales and service in metallurgical products.Our products contain various mill rolls and roll rings for different kinds of bar&wire mills, section mills, plate&strip mills, tube mills etc., which has been supplied to 20 countries and regions including Southest Asia, Europe, North America and Middle East.