1.4978
2014-09-15 11:11:41 Origin： Remark：0 Click：
Description 1.4978 datasheet, 1.4978 Chemical, 1.4978 Properties from Steelmaking, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic flaw detection test, Cold working or Machined. All of these materials conform to Military standard, nuclear power. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
MATERIAL TECHNICAL DATASHEET - W-Nr 1.4978
MATERIAL CATEGORY - High temperature high strength steel and superalloy
MELTING PROCESS & PRODUCT DESCRIPTION
The alloy is usually produced by AOD/VIM/VOD 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 level according to the buyers' requirements.
Bars are usually supplied bright in the solution annealing condition.
Final heat treatment - heat treatment / QT / solution treatment
MATERIAL SPECIFICATIONS - DIN 17742, 17460, 17480, DIN EN 103021, 10296, 10095
AVAILABLE SHAPES
Round bar / flat bar / square bar / rolled plate / valve body / ring
Bright - peeled + polishing /centerless grinding /peeled + slidabrading
Forged - ring /pipe casing /discs /shaft
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.45 ~ 0.55
Si (％): ≤ 1.00
Mn (％): ≤ 1.50
P (％)≤: 0.045
S (％)≤: 0.030
Cr (％): 19.0 ~ 21.0
Ni (％): 19.0 ~ 21.0
Mo (％): 3.50 ~ 4.50
Co (％): 19.0 ~ 21.0
Si (％): ≤ 1.00
Mn (％): ≤ 1.50
P (％)≤: 0.045
S (％)≤: 0.030
Cr (％): 19.0 ~ 21.0
Ni (％): 19.0 ~ 21.0
Mo (％): 3.50 ~ 4.50
Co (％): 19.0 ~ 21.0
W (%): 3.50 ~ 4.50
Nb/Ta (%): 3.50 ~ 4.50
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot forming temperature /℃: 1150～950
Heat treatment temperature /℃ | annealing: -
Heat treatment temperature /℃ | quenching or solution: 1180~1220 water
Heat treatment temperature /℃ | tempering: 745~775
Heat treatment temperature /℃ | ageing: -
Condition: precipitation hardening
Mechanical property under room temperature |σb/MPa: 980
Mechanical property under room temperature |σs≥/MPa: 540
Mechanical property under room temperature |σs≥/MPa: 540
Mechanical property under room temperature |δ5≥(％): 10
Mechanical property under room temperature |Akv(DVM): 27
Heat stability temperature/℃: -
Non-scale temperature in air /℃: 950
TYPICAL APPLICATIONS
Superalloy is widely used to produce the high temperature components for gas turbine in the field of aviation, naval vessels and industry, such as turbine blade, guide blade, turbine disc, high pressure compressor disc, combustor, and also production of energy conversion devices, such as aerospace craft, rocket motor, nuclear reactor, petrochemical equipments, coaly transforming and so on.
Gas turbine
Turbine blade
Fuel nozzle
Heat treating fixture
Furnace muffle
Nuclear reactor
Turbine blade
Fuel nozzle
Heat treating fixture
Furnace muffle
Nuclear reactor
Turbine engine parts - mechanical gears, gear shaft, main axis, blade
Mechanical parts - bolt and nut, fastener
Heat treatment furnace flask and components, especially in the carbonization.
These materials must stand up to high heat, extreme oxidation potential and recycling.
These materials must stand up to high heat, extreme oxidation potential and recycling.
PRODUCT PROFILE & DIMENSIONS
Round bar / Wire rod (Diameter): 5.5mm to 550mm
Square bar / Flat bar: 3mm to 1000mm
Plate / Sheet steel / Steel strip: 0.1mm to 1000mm
Width: 8mm to 1000mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to email or call our resident team of qualified production engineers, Email: sales@ccsteels.com
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