AFNOR NC20TA Enquiry | Print this page
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- Special Alloy
- » NC20TA
Z45CS9
Z50CMNNb21-09-02Az
Z53CMN21-09Az
Z53CMNNb21-09-02Az
Z53CMNS21-09Az
Z55CMN20-08Az
Z60CMDVNb21-10Az
Z80CNS20-02
Z85CDV18-02
NC15Fe7TA - AFNOR
- France
- Steel Exhaust Valves
Chemical composition % of the ladle analysis of grade NC20TA
C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Cu(%) | Co(%) | B(%) | Al(%) | Ti(%) | Other(%) |
0.04-0.10 | Max 1.00 | Max 1.00 | Max 0.020 | Max 0.015 | 18.0-21.0 | Remain | Max 0.20 | Max 2.00 | Max 0.008 | 1.00-1.80 | 1.80-2.70 | Fe Max 3.00 |
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) |
---|---|---|---|---|---|---|
862 (≥) | 421 (≥) | 23 | 14 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 324 |
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 |
---|---|---|---|---|---|---|---|
183 (≥) | 763 (≥) | 22 | 24 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 333 | |
Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
452 | 695 | 251 |
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 |
---|---|---|---|
NC20TA | Valve steels and alloys for internal combustion engines |