ASTM A768 Grade 3
2019-01-15 15:36:43 Origin： Remark：0 Click：
12% Chromium alloy steel ASTM A768 Grade 3 forging for Turbine rotor and shaft, ASTM A768 Grade 3 Round bar, flat bar, plate ESR melting, Hot blooming, UT, Hot forging,Hot rolling, Heat treatment.
TECHNICAL DATA SHEET - ASTM A768 Grade 3
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
MATERIAL CATEGORY: 12% Chromium alloy steel forgings for Turbine rotors and shafts
MATERIAL TECHNICAL STANDARDS: ASTM A768
MAIN CHEMICAL COMPOSITION (mass weight %)
Carbon, C (％): 0.10 ~ 0.16
MATERIAL CATEGORY: 12% Chromium alloy steel forgings for Turbine rotors and shafts
MATERIAL TECHNICAL STANDARDS: ASTM A768
MAIN CHEMICAL COMPOSITION (mass weight %)
Carbon, C (％): 0.10 ~ 0.16
Silicon, Si (％): 0.15 ~ 0.45
Manganese, Mn (％): 0.25 ~ 1.00
Phosphorus, P (％)≤: 0.015
Sulfur, S (％)≤: 0.012
Chromium, Cr (％): 11.0~ 13.0
Sulfur, S (％)≤: 0.012
Chromium, Cr (％): 11.0~ 13.0
Molybdenum, Mo (％): ≤ 0.25
Nickel, Ni (%): ≤ 0.75
Vanadium, V (%): -
Niobium, Nb (%): ≤ 0.15
TYPICAL MECHANICAL PROPERTIES UNDER ROOM TEMP.
Class 1
Tensile strength, TS, σb/≥ MPa: 620 ~ 760
Yield strength, YS, σ0.2/≥ MPa: 485
Elongation, EL, δ ≥(％): 15.0
Yield strength, YS, σ0.2/≥ MPa: 485
Elongation, EL, δ ≥(％): 15.0
Reduction of area, RA, (%): 45.0
Annealed hardness, HB ≤: -
Heat treatment pratice: Quenched 925 ~ 980 ℃, 1st tempered 605℃ min
Class 2
Tensile strength, TS, σb/≥ MPa: 725 ~ 860
Yield strength, YS, σ0.2/≥ MPa: 550
Elongation, EL, δ ≥(％): 16.0
Yield strength, YS, σ0.2/≥ MPa: 550
Elongation, EL, δ ≥(％): 16.0
Reduction of area, RA, (%): 45.0
Annealed hardness, HB ≤: -
Heat treatment pratice: Quenched 925 ~ 980 ℃, tempered 595℃
PRODUCT DESCRIPTION
The alloy is usually produced by IFF + AOD + VD, AOD + EF / EAF + VD, 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 - Quenched and tempered thermal treatment or based on the buyer's special requirements.
The alloy is usually produced by IFF + AOD + VD, AOD + EF / EAF + VD, 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 - Quenched and tempered thermal treatment or based on the buyer's special requirements.
ROFILE AND DIMENSIONS
Round bar (Diameter): 5.5mm to 600 mm
Wire rod (Diameter): 0.50mm to 16mm
Round bar (Diameter): 5.5mm to 600 mm
Wire rod (Diameter): 0.50mm to 16mm
Strip: T0.20~3.0 X W8.0~650mm
Length: Fixed length or random length or based on the customer's special requirement.
Length: Fixed length or random length or based on the customer's special requirement.
Other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, please EMAIL (sales@ccsteels.com.) our qualified production engineers.
If you meet further on any technical enquiry, please EMAIL (sales@ccsteels.com.) our qualified production engineers.
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