Wu Yang Iron&Steel
Material introduction
1:PRODUCING PROCESS
Raw Material(Carbon steel&pig iron&ore)→Electric
Furance(90MT/100MT Furance) →LF Furance(Refining molten steel
handling)→Vacuum Treatment(VD/VO Furance)→Casting,Serial
Casting →Ingot Re-Furance Treatment→ Heating(Serial Heating Furance)
→Steel Producing(4400mm&4200mm
machine)→Exploration&Monitoring Test→Steel Heat Treatment
→Hardness Test→Steel Appearance Quality Inspect
2:PRODUCTION FEATURE
1):First-class steel-making technology and equipment to ensure the purity
of steel. Featured scrap and other raw materials in order to reduce the
content of external debris and gas. Refining the use of ultra-high power
electric furnace and the secondary refining; In order to ensure that the
inherent quality of steel plate, static VD vacuum furnace treatment,
calcium treatment process measures to improve the purity and
composition of the steel group quasi-stable, the use of micro-alloying
technology, further improve the steel characteristics
2):We have the largest production of steel ingot and continuous casting
technology.
3)Adopting electroslag fuance to improve the quality and grade of steel
4)We have largest width and extra-specification production technology
5)Owning the best heating treatment technology
6):Complete quality inspection tools.Full automation and on-line
automatic detection technology, rolling line set up in the process control
temperature, thickness, width measurement, measuring, measuring device
equality. Print Online automatically signs, automatic ultrasonic flaw
3:Wearable steel category
1):Standard series:Wu steel has 2 standard series and 4 top-class
standard series.
2)Top-Class standard series
Application:This kind steel is used for general processing of wear-
resistant parts and exposed structures,e.g.Cold bending,welding,cutting and
machining.
A):General wear-resistant steel plates:We can produce the max thickness is 100mm,and guarantee the hardness.Meanwhile,we can ensure the impact
toughness.On behalf of:NM360,NM400(A,B,C classes.)
B)Ultra wear-resistant steel plates:This kind steel requires for a more
sustainable life,thus reducing the operating costs.Without more welding
and forming characteristics of the expense under the premise of high
performance wear-resistant.e.g:NM450,NM500 and so on
C)High toughness steel plate:In regularly,under -20 degree,The
toughness can not be ensured .But Wu steel is successed in producing this
kind high toughness steel,and can guarantee the impact and thoughness
under low temperature(-40degree).E.g:NM400,NM360(D,E)
D)High weldability steel
4:Features of wear-resistant steel
A):Reducing steel plate weight:Steel plate is based on a number of
alloying elements required for the addition, the design of high-strength
low-alloy series, through the plate the way a special heat treatment to
improve the strength level of steel so that they are to correspond to a
variety of high hardness (wear resistance). As a result, the weight of
structural parts can be reduced significantly
B)Welding:If due consideration is given to the general rules for
welding,this steel is weldable both manually and automatically.To prevent
cold cracking in the welded joints only welding consumables giving welds
of very low hydrogen content should be used.Preheating is not generally
necessary for welding with austenitic filler metals,but it may be necessary
for welding with ferritic filler metals.The preheat temperature level for
welding depends on the plate thickness and the residual stress state of the
structure.The working temperature should not go beyond 250 degree.
C):Toughness:Through strict control of chemical composition, reduce the
maximum content of harmful elements in steel, heat treatment conditions
for a reasonable choice to make steel with good toughness. One can,
therefore, against brittle wear-resistant structural damage, to build a high
degree of reliability of structural
D):The apperance is beautiful and smoothy
E):Good Processablility:As a result of the performance of the control plate
even with the best performance, and to ensure good toughness.bending
and therefore drilling, cutting, etc. are excellent machining performance
F):Specification:(3mm-100mm)*(1500mm-3300mm)*13000mm
5:Application and Recommend the use of the field
The steel may be used at the discretion of the purchaser for wear exposed
structure.For example:excavationg,mining and earth moving
machinery,truch dump bodies,conveying,crushing and
pulverizingequipment,scrap presses and paving moulds.
6:Introduction of NW450,Standard:WYJ101-2009
The average of hardess is around 450HB.Mechanical porperties is
obtained by heat treament.Cold-formed steel has a good
performance,used in anti-wear condition,Meawhile,it has good processing
performance,and weldability.
A):International standard table
WU STEELFE(Japan)SSAB(Sweden)DILIDUR(Germany)WNM450JFE-EH450AHARDX450450V
B):Application
Bulldozers, dump machines, excavators, crushers, mixers, loaders, rollers,
containers, transfer equipment, scraper machines, railway vehicles,
knives, etc.
C):Condition of supply:Hardening+Terperming
D):Specifications:(8-800)mm*(1500-3800)mm*(3000-13000)mm
E):Chemical composition:(heat analysis,%)
OriginalCSiMnPSCrMoBGermanyXAR450≤0.22≤0.80≤1.50≤0.025≤0.012≤1.30≤0.50
≤0.005Wu Steel(China)NM450≤0.26≤0.70≤1.60≤0.025≤0.010≤1.40≤0.50
≤0.004
Note:The steel has a fin-grained microstructure,Notrogen is abosorbed to
form nitrides by emans fo Al and ,where applicable,Nb or Ti
F):Condition of supply:Hardening+Terperming
G):Mechanical Properities
OriginalHardness(HB)拉伸性能(Tensile Test)20℃ AKV 横向 JRP0.2MPaRmMPaA50%GermanyXAR450410-490≥1200≥1350≥10WuSteel(China)NM450410-490≥1200≥1350≥10
H): The quality of typical steel plate
Low content of impurities in steel,pure
steel:0.013%p.0.004%S,[N]:45ppm,[H]:1.5ppm,[O]:14ppm
Thickness/mmQuality ClassHardness(HB)Tensile TestAKVJRp0.2MPaRmMPaA50%Rp0.2/Rm0℃-20℃20B4871320146090.9564420D451-4641250-12301330-136018-220.9242-6628-3920-3025B454-4641340-13701520-158013-170.8838-6326-3830A457-4641320-13301520-155013-180.8834-5940B451-46413301570130.853740C48513601590110.86332150A48713301540110.8660
Remark:Rp0.2::Yiled strength, "Rm":Tensile Strength
"A50":Elogation, Rp0.2/Rm:Yield strength rate
Hardness Test:
Thickness/mmResult of any parts(HB)Tolerance(HB)
TOPTOP1/4 1/2Low1/4BackAverage2048848948749049549085044446747446746746430
