K90901 / T91 / P91
2015-06-26 09:46:29 Origin： Remark：0 Click：
Technical specifications of K90901 alloy steel - T91 Chemical composition, Grade T91 Mechanical properties from steelmaking, Electroslag remelting, Blooming, Ultrasonic testing
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL SPECIFICATION DATASHEET - UNS K90901 & ASTM T91
MATERIAL CATEGORY: Low alloy seamless pipe for boiler, heat exchanger, condenser
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.07 ~ 0.14
Silicon, Si (％): 0.20 ~ 0.50
Manganese, Mn (％): 0.30 ~ 0.60
Phosphorus, P (％) ≤: 0.020
Sulfur, S (％) ≤: 0.010
Chromium, Cr (％): 8.00 ~ 9.50
Nickel, Ni (％): ≤ 0.40
Molybdenum, Mo (％): 0.85 ~ 1.05
Other (％): Nb 0.06 ~ 0.10, V 0.18 ~ 0.25, Al ≤0.04, N 0.030 ~ 0.070
Silicon, Si (％): 0.20 ~ 0.50
Manganese, Mn (％): 0.30 ~ 0.60
Phosphorus, P (％) ≤: 0.020
Sulfur, S (％) ≤: 0.010
Chromium, Cr (％): 8.00 ~ 9.50
Nickel, Ni (％): ≤ 0.40
Molybdenum, Mo (％): 0.85 ~ 1.05
Other (％): Nb 0.06 ~ 0.10, V 0.18 ~ 0.25, Al ≤0.04, N 0.030 ~ 0.070
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Tensile Strength, σb≥/MPa: 585
Yield Strength, σ0.2≥/MPa: 415
Elongation, δ≥(％): 20.0
Hardness ≤|HBW: 179
Yield Strength, σ0.2≥/MPa: 415
Elongation, δ≥(％): 20.0
Hardness ≤|HBW: 179
PRODUCT DESCRIPTION
The alloy is usually produced by AOD / VOD / EAF followed by electroslag refining (ESR) / 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' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - solution treatment / QT
The alloy is usually produced by AOD / VOD / EAF followed by electroslag refining (ESR) / 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' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - solution treatment / QT
PRODUCT PROFILE & DIMENSIONS
Round bar / Disc (diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T10 - 400mm X W15 - 1500mm X L1000-12000mm
Sheet steel via cold rolled: T0.5 - 4mm X W10 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
Sheet steel via cold rolled: T0.5 - 4mm X W10 - 1000mm X L1000 - 2000mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. E-mail: sales@ccsteels.com
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. E-mail: sales@ccsteels.com
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