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AMS 5549
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Aerospace Material AMS 5549 Specifications, Datasheet AMS 5549 Chemical, AMS 5549 Properties from Steelmelting (ESR refined), 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 STANDARD - AMS 5549

MATERIAL CATEGORY - High Alloy Aerospace Material Steel Series
TECHNICAL SPECIFICATION - AMS 5549F
OFFICIAL TEST REPORT - issued by TUV - SGS - BV
CHEMICAL COMPOSITIONS (WEIGHT - %)
C (%):    0.10 ~ 0.15
Mn (%):  0.50 ~ 1.25
Si (%):   ≤ 0.50
P (%)≤:  0.040
S (%)≤:  0.030
Cr (%):  15.0 ~ 16.0
Mo (%):  2.50 ~ 3.25
Ni (%):   4.00 ~ 5.00
N (%):    0.07 ~ 0.13
MECHANICAL PROPERTIES UNDER HEAT TREATMENT
Form: plate, sheet, strip
Tensile strength, σb/MPa: 1140
Yield strength, σ0.2/MPa: 965
Elongation, δ(%): 12.0
Reduction of area, ф(%): -
Hardness + Annealed (HB): HRC37 ~ 43 (AT + aged)
MELTING PROCESS & APPLICATION
This
alloy is generally smelt in BEF or VIM + Electroslag remelting (ESR). For a purpose of superior quality, it should be smelt via technology of vacuum refining or by agreement.
It is suitable for applications such as high tensile shafts, bolts and nuts, gears, pinions spindles and so on.
AVAILABLE FORMS & DIMENSIONS
Round bar: 5.5mm to 300mm
Square bar / Flat bar: 10mm to 500mm
Wire rod: 0.5mm to 13.0mm
Steel strip: THK0.5 ~ 3.0mm, Width 10 ~ 500mm
Length: Fixed length or random length or based on the customer's special requirement.
Other different shapes based on OEM. 
TECHNICAL SALES ASSISTANCE & SERVICE
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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