JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Jiangsu Mittel Steel Industrial Limited Supply all kinds of Stainless Steel Sheet/Plate/Coil/Round ,Flat ,Angle Bar/Stainless steel Seamless pipe /welded pipe /Elbow/Flange /Galvanized Steel sheet
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EN 10288 1.4541 Heat Resistant Stainless Steel Plate / Stainless Steel Ring / Stainless Steel Circle
Detail information of the stainless steel plate:
| Commodity | 321 stainless steel plate |
| Grade | 201,202,304,304L,316,316L,310S,309S,321,301,310,410,420,430,904L 2205 2507 |
| Brand | TISCO ,BAOSTEEL,POSCO,JISCO,LISCO |
| Certification | SGS, BV, IQI, TUV, ISO, etc |
| Thickness | 3.0 - 80.0mm |
| Width | 1000,1219,1250,1500mm, or as your requirements |
| Length | 2000,2438,2500,3000,6000mm, or as your requirements |
| Surface | No.1, 2B, BA, 8K Mirror, Hairline, Satin, Embossed, Brush, No.4, HL, Matt, PVC film, Laser film |
| Standard | ASTM,AISI,SUS,JIS,EN,DIN,GB, ASME, etc |
| Delivery time | 5-7 days after confirming the order |
| MOQ | 1 Ton |
| Advantages | Showing the splendor of your quality, wearresistant as well. |
Grades 321 and 347 are the basic austenitic 18/8 steel (Grade 304) stabilized by Titanium (321) or Niobium (347) additions. These grades are used because they are not sensitive to intergranular corrosion after heating within the carbide precipitation range of 425-850 °C. Grade 321 is the grade of choice for applications in the temperature range of up to about 900 °C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion.
Grade 321H is a modification of 321 with higher carbon content, to provide improved high-temperature strength.
A limitation with 321 is that titanium does not transfer well across a high-temperature arc, so it is not recommended as a welding consumable. In this case grade 347 is preferred - the niobium performs the same carbide stabilization task but can be transferred across a welding arc. Grade 347 is, therefore, the standard consumable for welding 321. Grade 347 is only occasionally used as parent plate material.
Like other austenitic grades, 321 and 347 have excellent forming and welding characteristics, are readily brake or roll-formed and have outstanding welding characteristics. Post-weld annealing is not required. They also have excellent toughness, even down to cryogenic temperatures. Grade 321 does not polish well, so is not recommended for decorative applications.
Grade 304L is more readily available in most product forms, and so is generally used in preference to 321 if the requirement is simply for resistance to intergranular corrosion after welding. However, 304L has lower hot strength than 321 and so is not the best choice if the requirement is resistance to an operating environment over about 500 °C.
These properties are specified for the flat-rolled products (plate, sheet, and coil) in ASTM A240/A240M. Similar but not necessarily identical properties are specified for other products such as pipe and bar in their respective specifications.
Typical compositional ranges for grade 321 stainless sheets of steel are given in table 1.
Table 1. Composition ranges for 321-grade stainless steel
| Grade |
| C | Mn | Si | P | S | Cr | Mo | Ni | N | Other |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 321 | min. | - | 2.00 | 0.75 | 0.045 | 0.030 | 17.0 | - | 9.0 | 0.10 | Ti=5(C+N) |
| 321H | min. | 0.04 | 2.00 | 0.75 | 0.045 | 0.030 | 17.0 | - | 9.0 | - | Ti=4(C+N) |
| 347 | min. | 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 17.0 | - | 9.0 | - | Nb=10(C+N) |
Typical mechanical properties for grade 321 stainless sheets of steel are given in table 2.
Table 2. Mechanical properties of 321-grade stainless steel
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50 mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321 | 515 | 205 | 40 | 95 | 217 |
| 321H | 515 | 205 | 40 | 95 | 217 |
| 347 | 515 | 205 | 40 | 92 | 201 |
Typical applications include:
Aircraft exhaust manifolds
Expansion joints
Bellows
Furnace parts
Heating element tubing
Heat Exchangers
Woven or welded screens for high-temperature mineral processing
Spiral Welded tube for burner pipes and flues
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