
Stainless steels are high-alloy steels that have excellent corrosion resistance in comparison with other steels as they contain more chromium.
Based on their crystalline structure, stainless steels are divided into three groups, namely, martensitic, austenitic and ferritic steels. A combination of martensitic and ferritic steels forms a fourth group known as precipitation-hardened steels.
The following datasheet provides an overview of grade 444 stainless steel.
The chemical composition of grade 444 stainless steel is outlined in the following table.
Element | Content (%) |
---|---|
Iron, Fe | 77.475 |
Chromium, Cr | 18.5 |
Molybdenum, Mo | 2 |
Nickel, Ni | 1 |
Manganese, Mn | 1 |
Silicon, Si | 1 |
Carbon, C | 0.025 |
The following table shows the physical properties of grade 444 stainless steel.
Properties | Metric | Imperial |
---|---|---|
Density | 7.80 g/cm3 | 0.282 lb/in³ |
The mechanical properties of grade 444 stainless steel are displayed in the following table.
Properties | Metric | Imperial |
---|---|---|
Tensile strength | 415 MPa | 60200 psi |
Yield strength (@strain 0.200%) | 275 MPa | 39900 psi |
Elastic modulus | 200 GPa | 29000 ksi |
Shear modulus | 80-83 GPa | 11600-12000 ksi |
Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
Elongation at break | 20% | 20% |
Hardness, Rockwell B | 95 | 95 |
The thermal properties of grade 444 stainless steel are given in the following table.
Properties | Metric | Imperial |
---|---|---|
Thermal expansion co-efficient | 10 µm/m°C | 5.56 µin/in°F |
Thermal conductivity | 26.8 W/mK | 186 BTU in/hr.ft².°F |
Equivalent materials to grade 444 stainless steel are:
Thickness | 0.3mm-4mm |
Width | 500mm-2000mm |
Length | 1219mm ,3050mm,and so on. as your requirement |
Material | 201/304/304l/316/316l/317L/309/309S/310S |
Standard | ASTM, GB, ISO |
Finish | 2B,BA, No.1-No.4,8K,4B,HL and so on. |
Usage | Indusy,construction,Tableware, cabinets, cooking utensils, wate heaters, architectural decoration, chemical industry and so on |
Minimum Quantity | 1 ton |
Technique | Cold rolled and Hot rolled |
Productivity | 2500 tons / month |
Terms of Payment | T/T, T/C, D/A, Onetouch and so on. |
stainless steel coil/sheets surface treatment
Characteristics and application | |
2B | The surface brightness and flatness of 2B is better than 2D. Then through a special surface treatment to improve its mechanical properties, 2B could nearly satisfy comprehensive uses. |
NO.3 | Polished with abrasive belt of git#100#200,have better brightness with discontinuous coarse stria, used as inner and external ornaments for building, electrical appliances and kitchenutensils etc. |
NO.4 | Polished with abrasive belt of grit#150#180,have better brightness with discontinuous coarse stria, but thinner than NO.3, are used as bathtub buildings inner and external ornaments electrical appliances kitchen utensils and food processing equipment etc, |
HL | Polished with abrasive belt of grit#150#320 on the NO.4 finish and has continuous streaks, mainly used as buildings ornaments elevators, door of building, frontal plate etc. |
BA | Cold rolled, bright annealed and skin-passed, the product have excellent brightness and good reflexivity like mirror, kitchen apparatus, ornament etc |
8K | The product have excellent brightness and prefect reflexivity can be the nirror |
Stainless steel maintenance:
(1) Regular cleaning and maintenance
(2) Pay attention to prevent the occurrence of the phenomenon of surface scratches
(3) Use soap, weak detergent or warm water to remove surface dust, dirt
(4) In addition to the surface of the binder with alcohol or an organic solvent
(5) Use neutral detergent or ammonia solution in addition to surface oil
(6) With 10% nitric acid or abrasive detergent in addition to the surface of the embroider caused by the dirt.
Processing:
There are high-tech equipments to processing stainless coils and sheets/plates with skilled workers.
Product display
Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.
Q: How about the delivery terms?
A: 1. Payment: T/T, Western Union, Paypal, 30% deposit in advance and balance before delivery.
2. Min. Order Quantity: 100KG, or as required.
3. Transportation: By express (DHL,TNT,FedEx),air,sea,and train.
Q: How about discount?
A: Price is based on products and order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: How about your after-sales service?
A: As a professional steel exporter, we offer promote technology support for all problems and questions.
Besides, we accept goods return or replace for quality problem.
Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products,
Modern always makes a serious inspection for all products and raw materials in strict procedure.
1. Competitive price and quality from our own factory
2. Approved by ISO9001, CE, SGS every year for stainless steel
sheet
3. Best service with 24 hour`s reply
4. Flexible payment with T/T,L/C , paypal, kunlun bank, etc
5. Smooth production ability(50000tons/month)
6. Quick delivery and standard exporting package
7. OEM/ODM
Any interest and question, Mark is here for you, we welcome your every message, email or call!
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transportation. , Wuxi become the biggest stainless steel sheet ,plate and coil supply Centers in China. Jiangsu Mittel Steel Industrial Limited was established in 1998 years. as one of the largest stockists and manufacturers of industrial grade Stainless Steel products and derivatives in Wuxi ,We keep a stock of 50000 tons every month, so we can delivery goods in fast time.
Our company supplies cold/hot-rolled stainless steel
sheets,stainless steel coils and stainless steel Plate to many
steel factories from athome and abroad, including Shanxi Taigang
Iron& Steel CO, . Ltd (TISCO)Zhangjiagang Pohang (ZPSS),
Shanghai BAO STEEL, Ningbo Baoxin and steel factories in Taiwan
area, Mainland Chinese and foreign countries and regions.
Our long-term business lines are
201.202.304(1.4301).304L.316.316L(1.4404).430.409L, 309S
,310S(1.4845).317L.904L.S31803(1.4462).S32750.S32760, Finish: 2B,
BA, NO. 1 NO. 4, HL, 8K and so on...Meanwhile, our company is also
engaged in the long-term supply of homemade & imported medium
and thick plates, galvanized and carbon steel products.
Adhering to the principle of "quality first and customer
foremost",our company will offer long-term service to nationwide
manufacturers of household appliances, elevators, tableware,
ornaments, tanks and machines. We can offer precise frosted
wiredrawing, 8K mirror finishing and skim board oil-abrasion of
various specifications at any time. The precisely-processed
products will meet your requirements for high quality. Our company
is a modern enterprise integrating distribution and storage.
If you are interested in any of our products or would like to
discuss a custom order, please feel free to contact us. We are
looking forward to forming successful business relationships with
new clients around the world in the near future.