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CNS 630 Application:CNS standard precipitation hardening stainless steel
Category Type Steel grade Standard Country
Grades Special Alloy CNS 630 CNS China

Chemical composition % of the ladle analysis of grade CNS 630

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%) Nb(%)
Max 0.07 Max 1.00 Max 1.00 Max 0.040 Max 0.030 15.50-17.50 3.00-5.00 3.00-5.00 0.15-0.45
CNS standard precipitation hardening stainless steel
Mechanical properties of grade CNS 630
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)
892 (≥) 745 (≥) 11 11 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 342
Physical properties of grade CNS 630
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
176 (≥) 773 (≥) 31 22 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 113
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
439 538 786
CNS 630 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 1028 S17400 CNS China
Stainless Steel Bars for Compressor and Turbine Airfoils
A 564 S17400 CNS China
Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
A 693 S17400 CNS China
Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
A 705 S17400 CNS China
Age-Hardening Stainless Steel Forgings
A 982 S17400 CNS China
Steel Forgings, Stainless, for Compressor and Turbine Airfoils
A 988 S17400 CNS China
Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service
F738 Class P1-90 S17400 CNS China
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F836 Class P1-90 S17400 CNS China
Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)
S17400 CNS China
Precipitation Hardenable Chromium Nickel Copper Stainless Steel
SA-564 S17400 CNS China
Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
SA-693 S17400 CNS China
Specification for Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
SA-705 S17400 CNS China
Specification for Age-Hardening Stainless Steel Forgings
A 1028 S17400 CNS China
Stainless Steel Bars for Compressor and Turbine Airfoils
A 564 S17400 CNS China
Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
A 693 S17400 CNS China
Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
A 705 S17400 CNS China
Age-Hardening Stainless Steel Forgings
A 982 S17400 CNS China
Steel Forgings, Stainless, for Compressor and Turbine Airfoils
A 988 S17400 CNS China
Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service
F738 Class P1-90 S17400 CNS China
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
F836 Class P1-90 S17400 CNS China
Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)

Relevant products

CNS 630 Equivalent Grade Stock

Steel grade Dimension Shape Unit Quantity Delivery state Query
17-4PH Coil Stock 0.08*200mm Coil or Strip Kgs 1623 Cold-Rolled+Annealed Enquiry
17-4PH Round Bar Φ5-300mm*L Round Bar Kgs 46958 Hot-Rolled+Annealed+black Enquiry
17-4PH plate 8-45*1200*3000mm Plate or Sheet Tons 4.9 Hot-Rolled+Annealed+black Enquiry

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