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Basic Info.
Product Description
The alloying elements can change and personalize properties-their flexibility, strength, formability, and hardenability.As a guideline, alloying elements are added in lower percentages (less than 5%) to increase strength or hardenability, or in larger percentages (over 5%) to achieve special properties, such as corrosion resistance or extreme temperature stability. Manganese, silicon, or aluminium are added during the steelmaking process to remove dissolved oxygen, sulfur and phosphorus from the melt. Manganese, silicon, nickel, and copper are added to increase strength by forming solid solutions in ferrite. Chromium, vanadium, molybdenum, and tungsten increase strength by forming second-phase carbides. Nickel and copper improve corrosion resistance in small quantities. Molybdenum helps to resist embrittlement. Zirconium, cerium, and calcium increase toughness by controlling the shape of inclusions. Sulfur (in the form of manganese sulfide), lead, bismuth, selenium, and tellurium increase machinability.The alloying elements tend to form either solid solutions or compounds or carbides. Nickel is very soluble in ferrite; therefore, it forms compounds, usually Ni3Al. Aluminium dissolves in the ferrite and forms the compounds Al2O3 and AlN. Silicon is also very soluble and usually forms the compound SiO2•MxOy. Manganese mostly dissolves in ferrite forming the compounds MnS, MnO•SiO2, but will also form carbides in the form of (Fe,Mn)3C. Chromium forms partitions between the ferrite and carbide phases in steel, forming (Fe,Cr3)C, Cr7C3, and Cr23C6. The type of carbide that chromium forms depends on the amount of carbon and other types of alloying elements present. Tungsten and molybdenum form carbides if there is enough carbon and an absence of stronger carbide forming elements (i.e., titanium & niobium), they form the carbides W2C and Mo2C, respectively. Vanadium, titanium, and niobium are strong carbide forming elements, forming vanadium carbide, titanium carbide, and niobium carbide, respectively.Alloying elements also have an effect on the eutectoid temperature of the steel. Manganese and nickel lower the eutectoid temperature and are known as austenite stabilizing elements. With enough of these elements the austenitic structure may be obtained at room temperature. Carbide-forming elements raise the eutectoid temperature; these elements are known as ferrite stabilizing elements.
Material: | Q295,Q345,Q930,Q460,A572Gr50,A588GrB,SM490,St523, S275JR,S355JR,WH60,WH70,A709Gr50,BB41BF,BB503,CoetenB,SHT60,A633D,SM520, SM570,Q550CFC,STE355,STE460,1E0650,1E1006,S275J2,S275NL,S355J0,S355J2, S355K2,S355NL,WH70Q,WQ590D,Q550D,WQ690,WQ700,A514,A517,S690Q, S690QL,S890Q,S960Q,WQ890,WQ960,WDB620 |
Thickness: | 0.2-50mm,etc |
Width : | 1000-4000mm,etc |
Length: | 2000mm, 2438mm, 3000mm, 3500,6000mm,12000mm,or rolled,etc etc |
Standard: | ASTM,AISI,JIS,GB, DIN,EN,SUS,etc |
Surface: | Black painted,PE coated,Galvanized,color coated, |
anti rust varnished,anti rust oiled,checkered,etc | |
Technique: | Cold Rolled, Hot Rolled |
Certification: | ISO, SGS,BV |
price terms: | FOB,CRF,CIF,EXW all acceptable |
Delivery Detail: | inventory About 5-7; custom-made 25-30 |
Loading port: | any port in China |
Packing: | standard export packing (inside:water proof paper,outside:steel covered with strips and pallets) |
Payment Terms: | T/T, L/C at sight,West Union,D/P,D/A,Paypal |
We inspect each batch of hot-rolled steel before it leaves the warehouse. Like: Surface Inspection, Thickness Inspection, Width and Length Inspection. We also accept third-party inspection of products.
Based on high quality and warmly service, we have won clients all over the world, our products are widely trans to USA, Euro, India, Iran, Dubai, Russia, Thailand, South America, Singapore, and so on.Wrap with special anti rust paper; Covered with plastic film, packed with steel belt or wooden pallet or packed according to customer requirements.We have long-term cooperation with many experienced shipping companies and will find the most suitable mode of transportation for you!
The company is a large international steel production and sales enterprise integrating production, sales, processing, distribution and service. The company has multiple warehouses in Tianjin, Shanghai, Qingdao and other port cities to ensure sufficient inventory for rapid delivery. At present, there are 14 steel production lines and 10 processing equipment for processing, bending, painting, heat treatment, cutting, drilling, chamfering, quenching and tempering, surface treatment, etc.
A:Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.
Q2:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q3:What product information do I need to provide?
A:You need to provide the grade, length, width, diameter, thickness, coating and the number of tons you need to purchase.
Q4:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept third party inspection.
Q5:How do we trust your company?
A:We specialise in steel business for years , headquarter locates in Jinan, Shandong province, you are welcome to investigate in any ways, by all means, we have CE and ISO certificate, quality can be guaranteed, the most important point is that we ship enough weight as per the order.