EXPANSION STEEL K91505
2026-08-04 22:47:00 Origin： Remark：0 Click：
Austenitic alloy steel bar K91505 high expansion steel - 4.5Mn - 4.0Cr - 12.5Ni (0.50 - 0.60 Carbon) , hot forged / rolled, cold finished stock available
MATERIAL DATA SHEET - UNS K91505
Material category: aerospace material steel series
Techncial specification: AMS 5624E
Melting process way: AOD / EF + ESR
Customs HS code: 72221100 / 72221900 / 72223000
Official Test Certificate: issued by TUV - SGS - CNAS
Material category: aerospace material steel series
Techncial specification: AMS 5624E
Melting process way: AOD / EF + ESR
Customs HS code: 72221100 / 72221900 / 72223000
Official Test Certificate: issued by TUV - SGS - CNAS
TYPICAL CHEMICAL ELEMENTS (mass weight - %)
Carbon, C (％): 0.50 ~ 0.70
Silicon, Si (％): ≤ 0.50
Manganese, Mn (％): 3.50 ~ 5.50
Phosphorus, P (％): ≤ 0.040
Sulfur, S (％): ≤ 0.030
Chromium, Cr (％): 3.00 ~ 5.00
Nickel, Ni (％): 11.0 ~ 14.0
Molibdenum, Mo (%): ≤ 0.50
Copper, Cu (％): ≤ 0.50
Carbon, C (％): 0.50 ~ 0.70
Silicon, Si (％): ≤ 0.50
Manganese, Mn (％): 3.50 ~ 5.50
Phosphorus, P (％): ≤ 0.040
Sulfur, S (％): ≤ 0.030
Chromium, Cr (％): 3.00 ~ 5.00
Nickel, Ni (％): 11.0 ~ 14.0
Molibdenum, Mo (%): ≤ 0.50
Copper, Cu (％): ≤ 0.50
MECHANICAL PROPERTIES UNDER AMBIENT TEMP.
Form: bar, plate, and forgings
Heat treatment condition: 1010 / 1050 ℃, water or oil cooled
Tensile strength, Rm / MPa: 620 min.
Yield strength, Rp0.2 / MPa: -
Elongation, A5 (％): 40.0
Reduction of area, ф (％): -
Hardness under solution condition | HBW: 289 max.
Form: bar, plate, and forgings
Heat treatment condition: 1010 / 1050 ℃, water or oil cooled
Tensile strength, Rm / MPa: 620 min.
Yield strength, Rp0.2 / MPa: -
Elongation, A5 (％): 40.0
Reduction of area, ф (％): -
Hardness under solution condition | HBW: 289 max.
PROFILES & DIMENSIONS AVAILABLE
Round bar & disc (diameter): 10 to 800 mm
Square bar & flat bar (thickness X width): 10 ~ 300 X 15 ~ 550 mm
Hollow bar ( forged tubing) (diameter): OD 30 ~ 850 * ID 15 ~ 600 * L 100 ~ 1000mm
Round bar & disc (diameter): 10 to 800 mm
Square bar & flat bar (thickness X width): 10 ~ 300 X 15 ~ 550 mm
Hollow bar ( forged tubing) (diameter): OD 30 ~ 850 * ID 15 ~ 600 * L 100 ~ 1000mm
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers. E-mail: sales@ccsteels.com.
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers. E-mail: sales@ccsteels.com.
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