25MoCrS4 Weather-proof Special Steel plate excellent weather resistance and weldability
Chemical Composition (in weight %)
Special steel, also called alloy steel, is a kind of steel. Special steel is to add one or several alloying elements to the carbon steel in an appropriate amount to change the structure of the steel, so that the steel has various special properties.
Compared with common ordinary steels, special steels add a variety of alloying elements to ordinary carbon steels in an appropriate amount to change the structure of the steel. Ordinary steel is better, and has specific advantages in the following aspects.
1) High strength, high rigidity, good ductility, strong plastic deformation ability, and small earthquake effect.
2) It can meet the requirements of long span and large height better than ordinary steel materials.
3) It has excellent weather resistance and weldability, the latter can improve the welding quality and reduce the possibility of welding node cracking.
4) All factory-made, easy to process, transport and install, the construction period is short.
5) The structural components are simple and flexible in layout, saving steel consumption.
6) The trace elements are strictly controlled, the quality of hot-dip galvanizing will be well guaranteed, and the appearance is beautiful and maintenance-free.
Adding one or several alloying elements to the carbon steel in an appropriate amount will change the structure of the steel, so that the steel has various special properties, such as strength, hardness, plasticity, toughness, wear resistance, resistance Corrosion, and many other excellent properties. The following are the properties and uses of some special steels:
1. Tungsten steel, manganese steel: high hardness, manufacturing metal processing tools, tractor tracks and axles, etc.
2. Manganese-silicon steel: the toughness is particularly strong, manufacturing spring leaf, spring coil, etc.
3. Molybdenum steel: high temperature resistant manufacturing of aircraft crankshafts, particularly hard tools, etc.
4. Tungsten chromium steel: high hardness and strong toughness. Do machine tool and die.
- Nickel-chromium steel (stainless steel): Strong corrosion resistance, not easy to oxidize Manufacturing acid-resistant towers, medical equipment and daily necessities in chemical production.
Components for dredgers and crushers, conveying machines: crushings jaws, impact wedges, linings, etc.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 190-210
Density [g/cm3]: 7.88
Harden from a temperature of 1000-1050oC followed by water quenching. Hardness after quenching is about 200 HB.
Mechnical properties at ambient temperature:
0.2 % proof stress (N/mm2): 350
Tensile strength (N/mm2): 800-1000
Hot forming temperature: 1050-850oC
The machinability of this steel is poor.
Forms manufactured: Please see the Dimensional Sales Program.
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.
What we can offer?
We offer a wide range of steel products in a wide variety of dimensions and executions, acc.to the common international specifications or customerized.
Machining and heat treatment are available.
Also, we advise you in choosing the right materials.
Solid round bar
Below inspection will be done in the production.
(1) ray detection---RT;
(2) ultrasonic testing---UT;
(3) Magnetic Particle Testing-MT;
(4) penetration testing-PT;
(5) eddy current flaw detection-ET
Bozhong Group Mainly supply in forms of coil, sheet, plate, rod, bar, tube, pipe, beam, angle, flange, wire, strip, channel, etc., with various varieties, wide range of dimensions, high purity, stable chemical composition, high dimensional accuracy and excellent surface quality. The products are mainly used in the fields of industries such as automobile engineering, railway transportation, aviation, aerospace, machinery, petrochemical, energy, environmental protection, offshore, chemical, oil & gas, military, power plant, nuclear power, pressure vessel, boiler equipment, mold manufacture, etc.
Our Service For You
1. Sample can be offered with sample charge and courier fee by buyer's side.
2. We have full stock,and can deliver within short time.Many styles for your choices.
3. OEM and ODM order are accepted, Any kind of logo printing or design are available.
4. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you
5. All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.
6. We have 8 year experience of design, manufacture and sell lingerie, we cherish every order from our honor.
After you choose
1. We will count cheapest shipping cost and make invoice to you at once.
2. Check quality again, then send out to you at 1-2 working day after your payment,
3. Email you the tracking no, and help to chase the parcels until it arrive you.
1. We are very glad that customer give us some suggestion for price and products.
2. If any question,please contact with us freely by E-mail or Telephone.
Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price.
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.
Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material don't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.
Q: What is the payment term?
A: T/T or L/C.
Q: Can you provide a sample for our testing before confirm the order?
A: Yes. We can provide sample to you for approval before you place an order to us. Free sample is available if we have stock.
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.
Name: Alicia LII
Derect Line: Website: https://shanghaibozhong.en.made-in-china.com