AMS 1.4939 datasheet,AMS 1.4939 chemical,AMS 1.4939 heat treatment
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AMS 1.4939
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X12CrNiMoV12-3 & AMS 1.4939 - DATA SHEET
MATERIAL CATEGORY
High temperature high strength steel and superalloy 
PRODUCT DESCRIPTION
The alloy is usually produced by AOD/VIM/VOD followed by electroslag refining (ESR) 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  (2002/1992), DIN EN 103021, 10296, 10095 (2002/1999)
AVAILABLE SHAPES  
Black bar /Flat bar /square bar  
Bright - peeled + polishing /centerless grinding /peeled + slidabrading
Forged - ring /pipe casing /discs /shaft
CHEMICAL COMPOSITION (WEIGHT %) 
C (%):     0.08 ~ 0.15
Si (%):    ≤ 0.50
Mn (%):   0.40~0.90
P (%)≤:   0.025
S (%)≤:   0.015
Cr (%):    11.0~12.5
Ni (%):    2.00~3.00
Mo (%):   1.50~2.00
V (%):     0.25 ~ 0.40
N (%):     0.020 ~ 0.040
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot forming temperature /℃:    1150~800
Heat treatment temperature /℃ | annealing:   660~690    
Heat treatment temperature /℃ | quenching or solution:  1050±15 oil 
Heat treatment temperature /℃ | tempering: 640~690
Heat treatment temperature /℃ | ageing:   590~640
Condition: heat treatment
Mechanical property under room temperature |σb/MPa: 950~ 1150                  
Mechanical property under room temperature  |σs≥/MPa:  800    
Mechanical property under room temperature |δ5≥(%):   13      
Mechanical property under room temperature |Akv(DVM):  55       
Heat stability temperature/℃:   580
Non-scale temperature in air /℃:   600
MECHANICAL PROPERTY UNDER HIGH TEMPERATURE
Mechanical property above 200℃ σ0.2/MPa,at following temperature /℃|200:    800              
Mechanical property above 200℃ σ0.2/MPa,at following temperature /℃|300:    770           
Mechanical property above 200℃ σ0.2/MPa,at following temperature /℃|400:    700           
Mechanical property above 200℃ σ0.2/MPa,at following temperature /℃|500:    590            
Mechanical property above 200℃ σ0.2/MPa,at following temperature /℃|600:    350         
Mechanical property above 200℃ σ0.2/MPa,at following temperature /℃|700:   -
Mechanical property above 200℃ σ0.2/MPa,at following temperature /℃|800:    -
Creep rupture strength /MPa,at following time/h and temperature /℃|1000h|600:   -
Creep rupture strength /MPa,at following time/h and temperature /℃|1000h|700:    -
Creep rupture strength /MPa,at following time/h and temperature /℃|1000h|800:    -
Creep rupture strength /MPa,at following time/h and temperature /℃|1000h|900:    -
Creep rupture strength /MPa,at following time/h and temperature /℃|10000h|600:   98
Creep rupture strength /MPa,at following time/h and temperature /℃|10000h|700:   -
Creep rupture strength /MPa,at following time/h and temperature /℃|10000h|800:    -
Creep rupture strength /MPa,at following time/h and temperature /℃|10000h|900:    -
Creep rupture strength /MPa,at following time/h and temperature /℃|100000h|600:  49
Creep rupture strength /MPa,at following time/h and temperature /℃|100000h|700:    -
Creep rupture strength /MPa,at following time/h and temperature /℃|100000h|800:    -
Creep rupture strength /MPa,at following time/h and temperature /℃|100000h|900:    -
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 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.
INVENTORY - Forged bar
Diameter: 150mm, 200mm
Ex-stock Quantity:  2300 kgs
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to Email (sales@ccsteels.com) or call our resident team of qualified production engineers. 
PRODUCT PROFILE  
Round bar / Wire rod (Diameter): 5.5mm to 600mm
Square bar / Flat bar: 10mm to 600mm
Plate / Sheet steel / Steel strip: 0.5mm 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.
Pipes / Tubings: OD 3-219 mm, with wall thickness ranging from 0.50 to 35 mm.   

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