HP 9-4-20 - Cast Iron and Cast Steel

HP 9-4-20 Stainless Steels to SAE AMS 6523G (2011)

HP 9-4-20 - Specification & Application

SAE AMS 6523G (2011) - Steel, Sheet, Strip, and Plate 0.75Cr - 9.0Ni - 4.5Co - 1.0Mo - 0.09V (0.17 - 0.23C) Vacuum Consumable Electrode Melted, Annealed

Steel, Sheet, Strip, and Plate 0.75Cr - 9.0Ni - 4.5Co - 1.0Mo - 0.09V (0.17 - 0.23C) Vacuum Consumable Electrode Melted, Annealed

Chemical composition(wt.%) of HP 9-4-20 grade: to SAE AMS 6523G (2011)

Elements	Min.（≥）	Max.（≤）
C	0.17	0.23
Si	-	0.10
Mn	-	0.20
Ni	-	0.65
Cr	-	0.40
Al	4.25	4.75
Cu	-	-
Ti	-	-
Fe	-	-
Mo	-	0.85
Co	8.50	9.50
V	0.06	0.12
P	-	0.01
S	-	0.01
W	0.90	1.10

HP 9-4-20 - Detail

Steel, Sheet, Strip, and Plate 0.75Cr - 9.0Ni - 4.5Co - 1.0Mo - 0.09V (0.17 - 0.23C) Vacuum Consumable Electrode Melted, Annealed

Mechanical properties of grade HP 9-4-20 SAE AMS 6523G (2011)

Proof strength R_p0.2 (MPa)	Tensile strength R_m (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
577 (≥)	393 (≥)	44	31	14	Solution and Aging, Annealing, Ausaging, Q+T,etc	233

Physical properties of grade HP 9-4-20 SAE AMS 6523G (2011)

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
178 (≥)	624 (≥)	22	24	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	234
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
255	811	814

Equivalent Grade

1 ASTM HP 2 A 646 Grade HP 9-4-20 3 HP 9-4-20 4 HP 9-4-20 5 HP 9-4-20 6 HP 9-4-20 7 HP 9-4-25 8 HP 9-4-25 9 A 646 Grade HP 9-4-30 10 HP 9-4-30 11 HP 9-4-30

Equivalent Products

Product shapes we supply:

We can customize the production of HP 9-4-20 grade, contact us for the best solution.
–sales@specificsteel.com