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CNS 440F Details
CNS 440F Standard Download
| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | 440F | Martensite | China - CNS , G3067 - Stainless steel bars |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.95 | 1.20 | ||
| Si | - | 1.00 | ||
| Mn | - | 1.25 | ||
| P | - | 0.060 | ||
| S | - | 0.15 | ||
| Ni | - | 0.60 | ||
| Cr | 16.00 | 18.00 | ||
| Mo | - | 0.75 |
| 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) |
|---|---|---|---|---|---|---|
| 117 (≥) | 346 (≥) | 12 | 22 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 124 |
| 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 |
|---|---|---|---|---|---|---|---|
| 271 (≥) | 535 (≥) | 42 | 24 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 121 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 921 | 818 | 812 |
| 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 |
|---|---|---|---|
| A 582 S44020 | SAE | USA | Standard Specification for Free-Machining Stainless Steel Bars |
| S44020 | AISI | USA | Martensitic Chromium Free Machining Stainless Steel |
| A 582 S44023 | SAE | USA | Standard Specification for Free-Machining Stainless Steel Bars |
| S44023 | AISI | USA | Martensitic Chromium Selenium Bearing Free Machining Stainless Steel |
| A 582 S44020 | SAE | USA | Standard Specification for Free-Machining Stainless Steel Bars |
| S44020 | AISI | USA | Martensitic Chromium Free Machining Stainless Steel |
| A 582 S44023 | SAE | USA | Standard Specification for Free-Machining Stainless Steel Bars |
| S44023 | AISI | USA | Martensitic Chromium Selenium Bearing Free Machining Stainless Steel |
| SUS 440F | JIS | Japan | Stainless steel bars |
| STS440F | KS | Korea | Stainless steel bars |
| 440F | CNS | China | Stainless steel bars |
| AISI440F | AISI | USA | AISI440F |
| AISI440F Se | AISI | USA | AISI440F Se |