ASTM A579 Gr.11
2026-01-22 15:42:00 Origin： Remark：0 Click：
Technical specifications of Aircraft standards high tensile strength steel ASTM A579 Gr.11 data sheet, ASTM A579 Gr.11 chemical compositions & mechanical properties
TECHNICAL DATA SHEET - ASTM A579 Gr.11
MATERIAL DELIVERY CONDITION: quenched and tempered
MAIN FEATURES: A579 series VAC-ARC steel is a medium carbon, low alloy, ultra high strength 1000Mpa steel primarily designed for high strength structural applications
A579 series steel is produced by the consumable electrode vacuum arc remelting process to provide optimum cleanliness and preferred ingot structure, which in turn provide optimum transverse mechanical properties.
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
CHEMICAL COMPOSITION (mass fraction %)
Carbon, C (％): 0.23 ~ 0.28
Silicon, Si (％): ≤ 0.10
Manganese, Mn (％): ≤ 0.20
Phosphorus, P (％): ≤ 0.010
Sulfur, S (％): ≤ 0.010
Chromium, Cr (％): 1.40 ~ 1.65
Silicon, Si (％): ≤ 0.10
Manganese, Mn (％): ≤ 0.20
Phosphorus, P (％): ≤ 0.010
Sulfur, S (％): ≤ 0.010
Chromium, Cr (％): 1.40 ~ 1.65
Ni (%): 2.75 ~ 3.25
Molybdenum, Mo (％): 0.80 ~ 1.00
Molybdenum, Mo (％): 0.80 ~ 1.00
Vanadium, V (%): -
Niobium, Nb (%): 0.03 ~ 0.07
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Condition: Heat treated
Tensile strength, σb ≥ MPa: 1035
Yield strength, σs ≥ MPa: 965
Elongation, δ5 ≥ (%): 13.0
Yield strength, σs ≥ MPa: 965
Elongation, δ5 ≥ (%): 13.0
Reduction of area, Z ≥ (％): 40.0
MELTING PROCESS
VIM + ESR Melted
TYPICAL APPLICATIONS
Power generation – turbine fasteners – boiler support rods
Process plant – fasteners
Mechanical gears, gear shaft, main axis, valve rod
Multidiameter shaft
Pressure vessel
Power generation – turbine fasteners – boiler support rods
Process plant – fasteners
Mechanical gears, gear shaft, main axis, valve rod
Multidiameter shaft
Pressure vessel
PRODUCT PROFILE AND AVAILABLE FORMS
Round bar / disc (diameter): 6.0 to 830 mm
Square bar / flat bar: 10 to 600 mm
Length: random length, or based on the customer's special requirement.
Steel strip: T0.20 ~ 3 X W10 ~ 200 mm X Coil
Heavy/middle plate via hot rolled: T4 ~ 200mm X W10 - 1200mm X L1000 ~ 12000 mm
Forging piece: stepped shafts, and other different shapes based on OEM.
Round bar / disc (diameter): 6.0 to 830 mm
Square bar / flat bar: 10 to 600 mm
Length: random length, or based on the customer's special requirement.
Steel strip: T0.20 ~ 3 X W10 ~ 200 mm X Coil
Heavy/middle plate via hot rolled: T4 ~ 200mm X W10 - 1200mm X L1000 ~ 12000 mm
Forging piece: stepped shafts, and other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
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