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C-1 Application:Machining with carbide
Category Type Steel grade Standard Country
Grades Special Alloy C-1 AISI USA

Chemical composition % of the ladle analysis of grade C-1

W(%) Co(%) Ta(%)
91.0-94.0 6.0-9.0 0-3.0
C-1
Density / (g/cm ^ 3) : 14.1 ~ 14.2
Hardness HRA: 90.6 ~ 91.6
Bending strength/MPa: 1655 ~ 2240
Use for example: used in cast iron, non-iron metals, nonmetal material rough machining
Mechanical properties of grade C-1
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)
419 (≥) 237 (≥) 23 33 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 313
Physical properties of grade C-1
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
978 (≥) 542 (≥) 34 24 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 214
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
585 525 733
C-1 Range of products
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
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
A 176 S44660 AISI USA
Stainless and Heat-Resisting Chromium Steel Plate, Sheet, and Strip
A 240 S44660 AISI USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 268 S44660 AISI USA
Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
S44660 AISI USA
Ferritic Chromium Molybdenum Nickel Stainless Steel (SC-1)
SA-240 S44660 AISI USA
Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
SA-268 S44660 AISI USA
Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

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