| Grade Designation | Element % | Characterisitcs | |||||
|---|---|---|---|---|---|---|---|
| TP | IS-6911 | C Max. | Mn. Max | Cr. | Ni | Other Elements | |
| 321 | 04cR18Ni10Ti20 | 0.08 | 2.00 | 17.00/13.00 | 9.00/13.00 | Ti=5xCmin max. 0.70 | Titanium addition makes this steel a varbide stablized type, which offers improved intergranular corrosion resistance. Used in Heat Exchanger and superheater tubes for high temperature high pressure bollers. |
| 304 | 04Cr18Ni10 | 0.08 | 2.00 | 18.00/20.00 | 8.00/1100 | - | Basic Steel for austentic stainless steel tubes, featuring excellent corrolon resistance and weldabllity. |
| 304L | 02Cr18Ni11 | 0.035 | 2.00 | 18.00/20.00 | 8.00/1300 | - | A very low carbon steel, offering good intergranular corrosion resistance even in " as welded " condition. |
| 310 | 10Cr25Ni18 | 0.15 | 2.00 | 24.00 / 26.00 | 19.00 / 22.00 | - | Excellent high temperature properties, with ductility and weldability |
| 316 | 04Cr17Ni12Mo2 | 0.08 | 2.00 | 16.00 / 18.00 | 10.00 / 14.00 | Mo200 / 3.00 | Molybdnum gives this steel, higher resistance to non - oxidising acides, as well as good resistance to crevice corrosion. It also offers excellent high temperature creep characteristics. |
| 316L | 02Cr17Ni12Mo2 | 0.035 | 2.00 | 16.00 / 18.00 | 10.00 / 15.00 | Mo2.00 / 3.00 | Lower carbon content provides better intergranular corrosion resistance than 316. |
| 202 | - | 0.15 | 7.5 / 10.00 | 17.00 / 19.00 | 4.00 / 6.00 | Si1, No. 25 | Austentic stainless steel tube. Moderate corrosion resistant & good weldability. |
| 409L | - | 0.03 | 1.00 | 10.50 / 13.50 | 0.50 max. | Ti = 6xCmin max. 0.75 |
A ferritic stainless steel offering resistance to chloride stress corrosion. Primarilty used in automotive industry or muffers, tail pipes, etc. |
| 410 | 12Cr13 | 0.15 | 1.00 | 11.50 / 13.50 | 0.50 max | - | A ferritic stainless steel offering good corrosion resistance and machinability. |
| 430 | 05Cr17 | 0.12 | 1.00 | 16.00 / 18.00 | 0.50max | - | Good combination of corrosion resistance, useful mechanical properties, and good formability. |
| 436L | 18Cr1Mo) . 3TiLCN | 0.025 | - | 46.00 / 19.00 | - | Ti, Nb, Zr8Xo% +N%)/0.8 | Excellent in corrosion resistance, drawability & weldability due to the addition of Mo, Ti & Nb. |
| 439 | 18Cr0.4TiLCN | 0.03 | - | 17.00 / 19.00 | - | Ti02 / 1.0 | With high thermal conductivity & low thermal expansion coeffciency, its is suitable for heat exchanger & auto exhaust parts. |
| 441 | 18Cr0.3SiTiNbLCN | 0.03 | - | 17.5 / 18.5 | 1.00 | Si1.0TI.1 - 0.6Nb9C + 0.3 / 1.0 | The content of 18Cr and Si secures oxidation resistance. The addition of Ti and Nb and the reduction of C and N improve high temperature strength, weldability and formability. |