Work Roll Backup Roll Step Shaft Mian Shaft Forged Steel Roller

Name: Work Roll Backup Roll Step Shaft Mian Shaft Forged Steel Roller
Brand: fushun
SKU: 18149411
Rating: 4.75 (10 reviews)

Categories	Steel Forgings
Brand	fushun
Model	Work roll/Backup roll/Step Shaft/Mian Shaft
OD	200mm-2000mm
Weight	MAX 85 Tons
working roll for hot rolled strip leveling rack	Rack of tandem rolling mill for section, bar, wire rod and narrow strip
Roll ring and roll of stretch reducing mill for se	Work roll of hot rolled strip tempering rack and medium plate mill rack
Terms of Payment	L/C, D/A, D/P, Western Union, T/T
Update Time	Apr 17,2024

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Detail Information

Introduce:

High speed steel rolls, produced by horizontal centrifugal casting process, are all compound rolls with high speed steel as the work layer and nodular iron as the core. The material of HSS contains plenty of alloyed elements such as Mo, Ni, Cr,etc. The high hardened eutectic carbides & second carbides, evenly distributed in tempered martensitic matrix, make the wear and thermal cracking resistance very excellent. besides, the resistance to surface roughing is also good. In condition of hot rolling, the contact points between steel strip and the work rolls can form a thin adherent oxide film on the roll surface, which plays a good role in the wear features and the quality of the strip surface.

Application :

working roll for hot rolled strip leveling rack
Rack of tandem rolling mill for section, bar, wire rod and narrow strip
Roll ring and roll of stretch reducing mill for seamless steel tube
Work roll of hot rolled strip tempering rack and medium plate mill rack
Tandem rolling bar and rack of high speed wire mill

Chemical Composition

Roll name	C	Si	Mn	P	S	Ni	Cr	Mo	Mg
Ni-Cr-Mo semi-chilled cast iron centrifugal composite roll	2.90~3.60	0.30~0.80	0.20~0.50	≤0.40	≤0.10	3.01~4.50	0.50~1.70	0.20~0.60	/
Ni-Cr-Mo infinite chilled nodular cast iron centrifugal composite roll	2.90~3.60	0.60~1.00	0.50~1.00	≤0.20	≤0.10	3.01~5.00	1.00~2.00	0.20~0.60	/
Ni-Cr-Mo nodular cast iron centrifugal composite roll(II)	2.90~3.60	1.00~2.20	0.40~0.70	≤0.10	≤0.10	2.51~3.50	0.10~0.60	0.40~1.00	>0.04
Ni-Cr-Mo nodular cast iron centrifugal composite roll(III)	2.90~3.60	1.00~2.20	0.40~0.70	≤0.10	≤0.03	3.51~4.50	0.20~0.80	0.40~1.00	>0.04
Cr-Mo chilled nodular composite cast iron roll	3.20~3.70	0.50~1.20	0.50~1.00	≤0.40	≤0.03	/	0.20~0.80	0.20~0.60	>0.04
Ni-Cr-Mo chilled nodular composite cast iron roll	3.20~3.70	0.50~1.20	0.50~1.00	≤0.40	≤0.03	0.50~1.00	0.20~0.80	0.20~0.60	>0.04
Ferrite nodular composite cast iron roll	2.90~3.60	1.00~2.20	0.50~1.00	≤0.10	≤0.03	1.00~3.00	0.10~0.60	0.40~1.00	>0.04
Pearlite nodular composite cast iron roll	2.90~3.60	1.00~2.20	0.50~1.00	≤0.10	≤0.03	2.00~3.00	0.10~0.60	0.40~1.00	>0.04

Physical Properties

Roll name	Roll-body outer-layer hardness HSD	Roll-neck (spherical core) hardness HSD	Tensile strength (spherical core) Mpa
Ni-Cr-Mo semi-chilled cast iron centrifugal composite roll	70-85	35-48	>300
Ni-Cr-Mo infinite chilled nodular cast iron centrifugal composite roll	65-85	35-48	>300
Ni-Cr-Mo nodular cast iron centrifugal composite roll(II)	55-75	35-48	>400
Ni-Cr-Mo nodular cast iron centrifugal composite roll(III)	60-80	35-48	>400
Cr-Mo chilled nodular composite cast iron roll	58-70	35-48	>300
Ni-Cr-Mo chilled nodular composite cast iron roll	60-72	35-48	>300
Ferrite nodular composite cast iron roll	45-55	35-48	>400
Pearlite nodular composite cast iron roll	55-65	35-48	>400