Description
We are professional Forged back up BACKUP rolls for continuous Hot Strip Mills,Forging Steel back up rolls roller, for Cold Rolling Mills,FOrging steel roller for Steckel Mills,forging steel heavy plate mill back up rolls, forged steel BACKUP rolls for hot-strip mills
Back Up Rolls are important spare parts in rolling mill. The quality of forging rolls directly affects the quality of sheets & coils. By our years of experience, we can supply good quality forging roll with uniformity hardness, premium wear resistance and anti-thermal crack performance.
1. No macroscopic segregation and few microscopic segregations.
2. Very few and subtle non-metal inclusion; dispersed distribution.
3. Compact and homogeneous structure.
4. High toughness and strength
5. Beneficial for improvement of anti-fatigue and heat impact ability of the roll.
Following is material grade Forging steel Back Up Rolls that we could produce
1.2327, DIN 86CrMoV7
440C,X105CrMo17,1.4125
MC3, MC5
80CrV2, 1.2235, 80CrV3
1.8070 21CrMoV5-11
AISI 4140, 42CrMo4
AISI 4130, 35CrMo4
AISI 52100 - 100Cr6
1.2379,SKD11,X155CrVMo121
1.8070 21CrMoV5-11
Melting of forged Steel Back Up Roll : In order to be able to produce virtually all types and dimensions of rolls, we work with EAF, ESR, and Induction smelting equipment.
Following is production process of all our Forging steel Back Up Rolls
Electric arc furnace smelting → LF \ VD refining → ingot casting → annealing → cleaning → electroslag remelting → annealing → forging → post forging heat treatment → rough machining → preliminary heat treatment → semi finishing → dual frequency quenching or differential temperature treatment → cryogenic treatment → tempering → finishing → packaging and delivery.
We have following testing equipment to inspect all our forged steel backup rolls
Emission Spectrometer ARL - 3460; Two sets
Carbon & Sulphur Analyzer CS-80
Hydrogen & Oxygen Analyzers
Thermal Analyzer
Hardness Testers (Portable and Laboratory sets)
Ultrasonic Testing Equipments (Several units)
Material Testing Machine WAW-600
Charpy Impact Test Machine JSB-300
All our forged steel backup rolls will have following inspection:
Chemical analyses
Mechanical analyse
UT testing according several norms
MPI testing
Spectral analyse
Hardness measurement according several methods
Tensile and bending tests
Impact test according several methods
Microscope investigation
Huey test
Interkristal corrosion test
Red white test
X-Ray test
3D dimensional check
Magnetic test
Dye penetrant test
Positive Alloy Material Identification (PAMI)
Magnetic particle test
