P91 / F91 / T91
2025-07-23 12:46:00   Origin：   Remark：0 Click：

TECHNICAL DATA SHEET - ASTM A182 Grade F91 type 1
MATERIAL TECHNICAL STANDARDS: ASTM A182 - 2018
MATERIAL TYPE: 9Cr - 1Mo - 0.20V Alloy steel
CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.08 ~ 0.12
Manganese, Mn (％): 0.30 ~ 0.60
Silicon, Si (％): 0.20 ~ 0.50
Phosphorus, P (％) ≤: 0.020
Sulfur, S (％) ≤: 0.010
Chromium, Cr (%): 8.00 ~ 9.50
Molybdenum, Mo (%): 0.85 ~ 1.05
Nickel, Ni (%): ≤ 0.40
Niobium, Nb (%): 0.05 ~ 0.11
Titanium, Ti (%): ≤ 0.01
Nitrogen, N (%): 0.035 ~ 0.07
Vanadium, V (%): 0.16 ~ 0.27
Copper, Cu (%): ≤ 0.10
TYPICAL MECHANICAL PROPERTIES
Tensile strength, σb ≥ MPa: 620
Yield strength, σ0.2 / MPa: 415
Elongation, δ5 ≥ (％): 20.0
Reduction of area, ф ≥ (％): 40.0
Hardness via heat treatment /HBW: 190 ~ 248
Hardness via heat treatment /HBW: 190 ~ 248
HEAT TREATMENT PRACTICE
Condition: Solution annealed 1040 ~ 1080 Deg. C
Cooling medium: air cool
PRODUCT DESCRIPTION
The alloy is usually produced by BEF / BEF + AOD / EAF, followed by electroslag refining (ESR or VAR ) 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 / disc (diameter): 5.50 to 1000mm
Square bar / flat bar: 10 to 600mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 ~ 400 X W200 ~ 1000 X L1000 ~ 3000mm
Forging piece: stepped shafts, other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical inquiry. pleased to EMAIL (sales@ccsteels.com.) our resident team of qualified production engineers.