ASTM A336 grade F91
2026-04-13 09:10:00 Origin： Remark：0 Click：
Alloy steel forgings for pressure and high-temperature parts ASTM A336 grade F91 round bar, flat bar , plate and forgings steelmaking, ESR melted, Hot forged/rolled, heat treated
Material techenical specifications: ASTM A336 - 2009
Material type: Cr9.0 - 1.0Mo - 0.21V base alloy steel
Typical chemical compositions (mass fraction - %)
Carbon, C (％): 0.08 ~ 0.12
Typical chemical compositions (mass fraction - %)
Carbon, C (％): 0.08 ~ 0.12
Manganese, Mn (％): 0.30 ~ 0.80
Silicon, Si (％): ≤ 0.50
Silicon, Si (％): ≤ 0.50
Phosphorus, P (％): ≤ 0.025
Sulfur, S (％): ≤ 0.015
Chromium, Cr (%): 8.00 ~ 9.50
Molybdenum, Mo (%): 0.85 ~ 1.05
Sulfur, S (％): ≤ 0.015
Chromium, Cr (%): 8.00 ~ 9.50
Molybdenum, Mo (%): 0.85 ~ 1.05
Nickel, Ni (%): ≤ 0.40
Vanadium, V (%): 0.18 ~ 0.25
Copper, Cu (%): -
Nitrogen, N (%): 0.03 ~ 0.07
Niobium, Nb (%): 0.06 ~ 0.10
Titanium, Ti (%): ≤ 0.01
TYPICAL MECHANICAL PROPERTIES
Tensile strength, σb ≥ MPa: 585 ~ 760
Yield strength, σ0.2 / MPa: 415
Elongation, δ5 ≥ (％): 20.0
Reduction of area, ф ≥ (％): 40.0
Hardness via heat treatment /HBW: 220 MAX.
Reduction of area, ф ≥ (％): 40.0
Hardness via heat treatment /HBW: 220 MAX.
PRODUCT DESCRIPTION
The alloy is usually produced by BEF /EAF + VD followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' specific requirements.
Round bar / Wire rod (Diameter): 5.5mm to 600mm
Square bar / Flat bar: 3mm to 800mm
Length: random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 - 200mm X W1000- 2500mm X L1000-12000mm
Forging piece: stepped shafts, other different shapes based on OEM.
The alloy is usually produced by BEF /EAF + VD followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' specific requirements.
Round bar / Wire rod (Diameter): 5.5mm to 600mm
Square bar / Flat bar: 3mm to 800mm
Length: random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 - 200mm X W1000- 2500mm X L1000-12000mm
Forging piece: stepped shafts, 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 - Email: sales@ccsteels.com.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers - Email: sales@ccsteels.com.
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