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Home Material ASTM A564/A564M-2019(a)
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USA UNS S46500
Corresponding Standard ASTM A564/A564M-2019(a)
Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
Classification Precipitation-Hardening Stainless Steel
Properties Corrosion Resistance
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo N Ti
Minimum Value - - - - - 11 10.75 0.75 - 1.5
Maximum Value 0.02 0.25 0.25 0.015 0.01 12.5 11.25 1.25 0.01 1.8
Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Reduction of Area
ψ
% 		Hardness
HBW
Steel Solution treatment (A): 980±15°C, oil or water quenching, hold at 37°C for at least 8h, slow cooling HRC: ≤36
HB: ≤331
Steel Solution treatment (A): 980±15°C, oil or water quenching, hold at 37°C for at least 8h, slow cooling
+
Cold work hardening (CW)		 HRC: ≤40
HB: ≤380
Steel; t≤300 (longitudinal) Quenching and/or aging (H950):
510°C hold for 4h, air or oil quenching		 ≥1665 ≥1515 ≥10 ≥45 HRC: ≥47
HB: ≥444
Steel; t≤300 (transverse) Quenching and/or aging (H950):
510°C hold for 4h, air or oil quenching		 ≥1665 ≥1515 ≥8 ≥35 HRC: ≥47
HB: ≥444
Steel; t≤300 (longitudinal) Quenching and/or aging (H1000):
540°C, hold for 4h, air or oil cooling		 ≥1515 ≥1380 ≥10 ≥50 HRC: ≥45
HB: ≥430
Steel; t≤300 (transverse) Quenching and/or aging (H1000):
540°C, hold for 4h, air or oil cooling		 ≥1515 ≥1380 ≥10 ≥40 HRC: ≥45
HB: ≥430
Steel; t≤300 (longitudinal) Quenching and/or aging (H1025):
560°C, hold for 4h, air or oil cooling		 ≥1450 ≥1345 ≥12 ≥50 HRC: ≥44
HB: ≥415
Steel; t≤300 (transverse) Quenching and/or aging (H1025):
560°C, hold for 4h, air or oil cooling		 ≥1450 ≥1345 ≥11 ≥45 HRC: ≥44
HB: ≥415
Steel; t≤300 (longitudinal) Quenching and/or aging (H1050):
565°C, hold for 4h, air or oil cooling		 ≥1380 ≥1280 ≥13 ≥50 HRC: ≥43
HB: ≥400
Steel; t≤300 (transverse) Quenching and/or aging (H1050):
565°C, hold for 4h, air or oil cooling		 ≥1380 ≥1280 ≥12 ≥45 HRC: ≥43
HB: ≥400
Steel; t≤25.4 (longitudinal) Solution (A) + cold work (CW) + quenching and/or aging (H900):
482°C hold for 4h, air or oil quench		 ≥1755 ≥1620 ≥7 ≥44 HRC: ≥49
HB: ≥455
Steel; t≤25.4 (longitudinal) Solution (A) + cold work (CW) + quenching and/or aging (H950):
510°C hold for 4h, air or oil quench		 ≥1720 ≥1585 ≥8 ≥45 HRC: ≥48
HB: ≥450
Steel; t≤25.4 (longitudinal) Solution (A) + cold work (CW) + quenching and/or aging (H1000):
540°C hold for 4h, air or oil quench		 ≥1620 ≥1480 ≥9 ≥50 HRC: ≥46
HB: ≥435
Steel; t≤25.4 (longitudinal) Solution (A) + cold work (CW) + quenching and/or aging (H1025):
560°C hold for 4h, air or oil quench		 ≥1550 ≥1410 ≥10 ≥50 HRC: ≥45
HB: ≥425
Steel; t≤25.4 (longitudinal) Solution (A) + cold work (CW) + quenching and/or aging (H1050):
565°C hold for 4h, air or oil quench		 ≥1450 ≥1310 ≥10 ≥50 HRC: ≥44
HB: ≥415

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