Product Descrition
1.Production Process
1)Steelmaking process Flow Chart
Blast Furance+Hot Metal Ladle Truck+KR Hot Metal Treatment+Converter+LF Refining Furnace+RH Vacuum Degassing Furance+Con-cast
2)Rolling Process Flow Chart
Reheating Furance+High-pressure Water Descaling+Edger Mill+Roughing Mill+Finishing Mill+Accelerated cooling+Hot Leveler+Marking and Spray Printing+Cooling Bed+On-line UT+Crop Shear+Double-side Trimming Shear+Cut-to-length Shear+Measurement+Marking and Spray Printing+Cold Leveler/Heat treatment
3)Heat-Treatment Flow Chart
Plate+Shot Blasting+Quenching Furance+Quenching Machine+Tempering Furance+Warm Leveler+Cooling Bed+Cutting+Cold Leveler+Finishing&Packaging
2.Thickness and Width
Thickness:4.5mm-150mm
Width:1600mm-4100mm
3.Main Grade
Sweden:HARDOX400,HARDOX450,HARDOX500,HARDOX600,SB-50,SB-45Germany:XAR400,XAR450,XAR500,XAR600,Dillidur400,Dillidur500
Belgium:QUARD400,QUARD450,QUARD500
France:FORA400,FORA500,Creusabro4800,Creusabro8000
Baosteel:B-HARD360,B-HARD400,B-HARD450,B-HARD500
HBIS:NM360,NM400,NM450,NM500
Finland:RAEX400,RAEX450,RAEX500
Japan:JFE-EH360,JFE-EH400,JFE-EH500,WEL-HARD400,WEL-HARD500
4.Chemical Composition&Property
Grade | c | Si | Mn | P | S | Al | Cr+Ni+Mo | Nb+V+Ti |
NM400 | 0.10-0.40 | 0.20-0.40 | 1.00-2.00 | Max 0.015 | Max 0.003 | Min 0.020 | Max 0.9 | Trace Amount |
NM450 | 0.10-0.40 | 0.20-0.40 | 1.00-2.00 | Max 0.015 | Max 0.003 | Min 0.020 | Max 1.2 | |
NM500 | 0.10-0.40 | 0.20-0.45 | 1.00-2.00 | Max 0.015 | Max 0.003 | Min 0.020 | Max 1.5 | |
NM550 | 0.10-0.50 | 0.20-0.45 | 1.00-1.50 | Max 0.015 | Max 0.003 | Min 0.020 | Max 2.0 | |
NM600 | 0.10-0.50 | 0.20-0.45 | 1.00-1.50 | Max 0.015 | Max 0.003 | Min 0.020 | Max 2.5 | |
XCHD400 | 0.10-0.30 | 0.20-0.40 | 1.00-2.00 | Max 0.015 | Max 0.003 | Min 0.020 | Max 0.1 | |
XCHD450 | 0.10-0.40 | 0.20-0.40 | 1.00-2.00 | Max 0.015 | Max 0.003 | Min 0.020 | Max 0.9 | |
XCHD500 | 0.10-0.40 | 0.20-0.45 | 1.00-2.00 | Max 0.015 | Max 0.003 | Min 0.020 | Max 1.5 |
Grade | Size(mm) | RP0.2(Mpa) | Rm(Mpa) | A50(%) | AKV,(℃) | KV2(J) | HBW | ||
NM400 | 100 | 1233 | 1337 | 15 | -20 | 35 | 37 | 42 | 415 |
NM450 | 60 | 1345 | 1434 | 9.5 | -20 | 72 | 59 | 58 | 455 |
NM500 | 50 | 1608 | 1706 | 10.5 | -20 | 43 | 50 | 45 | 495 |
XCHD400 | 35 | 1025 | 1161 | 17.5 | -40 | 52 | 45 | 40 | 413 |
XCHD450 | 30 | 1281 | 1400 | 10.5 | -40 | 45 | 48 | 52 | 453 |
XCH500 | 6 | 1465 | 1529 | 13.5 | -40 | 24 | 24 | 22 | 515 |