CSN G639.90 Enquiry | Print this page
| Category | Type | Steel grade | Standard | Country |
|---|---|---|---|---|
| Grades | Special Alloy | G639.90 | CSN | Czech Republic |
Chemical composition % of the ladle analysis of grade G639.90
| C(％) | Si(％) | Mn(％) | Cr(％) | W(%) | Co(%) | Nb(%) |
|---|---|---|---|---|---|---|
| 1.80-2.40 | Max 0.50 | Max 0.50 | 25.0- 30.0 | 10.0-15.0 | 45.0-55.0 | WiCo |
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 585 (≥) | 821 (≥) | 22 | 43 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 231 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 495 (≥) | 153 (≥) | 24 | 32 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 231 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 551 | 452 | 551 |
| Product type | Products | Dimension | Processes | Deliver Status |
|---|---|---|---|---|
| Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
| Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
| Grade | Standard | Country | Application |
|---|---|---|---|
| GH2901 | CSN | Czech Republic | Iron-based superalloy |
| A 269 S21900 | CSN | Czech Republic | Seamless and Welded Austenitic Stainless Steel Tubing for General Service |
| A 276 S21900 | CSN | Czech Republic | Stainless Steel Bars and Shapes |
| A 314 S21900 | CSN | Czech Republic | Seamless and Welded Austenitic Stainless Steel Tubing for General Service |
| A 473 S21900 | CSN | Czech Republic | Stainless Steel Forgings |
| A 580 S21900 | CSN | Czech Republic | Stainless Steel Wire |
| A 580 S21900 | CSN | Czech Republic | Stainless Steel Wire |
| A 813 S21900 | CSN | Czech Republic | Stainless Steel Wire |
| S21900 | CSN | Czech Republic | Austenitic Chromium Manganese Nickel Stainless Steel |
| SA-813 S21900 | CSN | Czech Republic | Specification for Single- or Double-Welded Austenitic Stainless Steel Pipe |
| SA-814 S21900 | CSN | Czech Republic | Specification for Cold-Worked Welded Austenitic Stainless Steel Pipe |
| A 240 S21904 | CSN | Czech Republic | Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
| A 269 S21904 | CSN | Czech Republic | Seamless and Welded Austenitic Stainless Steel Tubing for General Service |
| A 276 S21904 | CSN | Czech Republic | Stainless Steel Bars and Shapes |
| A 314 S21904 | CSN | Czech Republic | Stainless Steel Billets and Bars for Forging |
| A 473 S21904 | CSN | Czech Republic | nless Steel Forgings |
| A 580 S21904 | CSN | Czech Republic | Stainless Steel Wire |
| A 666 S21904 | CSN | Czech Republic | Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar |
| A 965 S21904 | CSN | Czech Republic | Steel Forgings, Austenitic, for Pressure and High Temperature Parts |
| A 988 S21904 | CSN | Czech Republic | Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar |