1.4845 Seamless Stainless Steel Pipe
1.Product Description
Chemical Composition
| % |
Ni |
Cr |
Mo |
Cu |
N |
C |
Mn |
Si |
P |
S |
| |
17.50-18.50 |
19.50-20.50 |
6.0-6.50 |
0.50-1.0 |
0.18-0.22 |
Max 0.02 |
Max 1.0 |
Max 0.80 |
Max 0.03 |
Max 0.01 |
Physical properties
| Characteristic |
|
|
|
|
Tensile strength
Rm N/mm² |
Yiield Strength (0.2% offset)
Rp0.2N/mm² |
Density |
Elongation
A5 % |
Melting point
(ºC) |
| 650 |
300 |
8.0g/cm³ |
35 |
1320-1390 |
Features
Due to its high content of molybdenum and chromium and nitrogen, it has a high resistance to corrosion and crevice corrosion resistance, has good corrosion resistance. The addition of copper improves the corrosion resistance in certain acids. In addition, due to its high
nickel content and high chromium and molybdenum content, 254SMO has excellent resistance to stress corrosion cracking.
1, Extensive field trials and extensive experience have shown that even at slightly higher temperatures, 254SMO has high crevice corrosion resistance in seawater, and only a few types of stainless steel have this property.
2, The corrosion resistance of 254SMO in acidic solutions and oxidizing halide solutions such as paper bleaching can be compared with nickel-based alloys and titanium alloys with the highest corrosion resistance.
3, Since 254SMO has a high nitrogen content, its mechanical strength is higher than other types of austenitic stainless steel. In addition, 254SMO also has high ductility and impact strength as well as good weldability.
4, The high molybdenum content of 254SMO allows it to have a higher oxidation rate when returned, resulting in a rougher surface than normal stainless steel after pickling. But this has no adverse effect on the corrosion resistance of the steel.
Metallographic Structure
254SMO is a face-centered cubic crystal structure. In order to obtain an austenitic structure, 254SMO is generally annealed at a temperature of 1150 to 1200 degrees Celsius. In some cases, the center of the material may have traces of the metallic intermediate phase. However, in general, they have no adverse effect on impact strength and corrosion resistance. When placed in the range of 600-1000 degrees Celsius, these phases may precipitate on the grain boundaries.
2. Our Service For You
Pre-sale Service
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.
After-sale choose
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.
3.FAQ
Q: What's your minimum order quantity?
A: Our minimun quantity is 500 Kg. We also can offer you samples.
Q: What's your delivery time?
A: Our normal delivery time is 7-20 days, and it depends on your quantity and items. Of course, if you need products
urgently, we also will consider arranging it firstly.
Q: What's the price of your product?
A: Our prices are based on the material grade, size, quantity and physical performance etc. So if you can offer us the
detailed information, then we can give you the best reasonable price. Also, we can do special size and color for
customers.
Q: What's your after-sales service?
A: We have two ways to handle claims by replacement and deduction. Of course, if the materialis not good used by wrong
parameter from customer, we won't be responsible.
Q: Why do you think I will want to buy from you?
A: We have advantages with 22 years of professional experiences in manufacturing & designing, advanced technology & the
first-class equipment, perfect logistics management, high-quality after-sales service and competitive price.
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