D6A datasheet,D6A chemical,D6A heat treatment

D6A
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Description D6A datasheet, D6A Chemical, D6A Properties Steelmaking, Blooming, Hot forging, Hot rolling, Heat treat, 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.
TECHNICAL DATA SHEETGrade D6A

MATERIAL CATEGORY - Ultra high strength 1930MPa alloy steel
MAIN FEATURES: D6A VAC-ARC steel is a medium carbon, low alloy, ultra high strength 1471Mpa steel primarily designed for high strength structural applications
D6A steel is produced by the consumable electrode vacuum arc remelting process to provide optimum cleanliness and preferred ingot structure, which in turn provide optimum transverse mechanical properties.
OFFICIAL TEST CERTIFICATE - issued by TUV - SGSBV
CHEMICAL COMPOSITION (WEIGHT %)
C (%):    0.45 ~ 0.50
Si (%):    0.15 ~ 0.30
Mn (%):  0.60 ~ 0.90

P (%)≤:  0.025
S (%)≤:  0.025
Cr (%):   0.90 ~ 1.20
Ni (%):   0.40 ~ 0.70
Mo (%):  0.90 ~ 1.10
V (%):    0.08 ~ 0.10
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Condition: Heat treatment - normalized at 900℃. quenched 845℃ oiled cooled, tempered 595℃, air cooled
Tensile strength σb≥/MPa: 500
Yield strength σs≥/MPa: 395
Elongation δ5≥(%): 41.0
AKV≥/J: -
Hardness HRC: -
   
TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Power generation – turbine fasteners – boiler support rods
Process plant – fasteners
Mechanical gears, gear shaft, main axis, valve rod
Mechanical parts - connecting rod, bolt and nut
Multidiameter shaft
Pressure vessel, seamless pipe
PRODUCT FORMS & DIMENSIONS
Round bar (Diameter): 5.5mm to 400mm
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Steel strip: T0.5 ~ 3mm X W10 ~ 2000mm X Coil
Heavy/middle plate via hot rolled: T60 - 300mm X W100 - 1000mm X L1000 - 4000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /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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