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D-6AC(D-6AC,AMS 6431)Forged Forging Steel Rings Seamless Rolled Ring

Jiangsu Liangyi Co.,Limited
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Address: Chengchang Industrial Park,Huangtu Town,Jiangyin City,Jiangsu Province,China

Contact name:Antonio Zhou

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Jiangsu Liangyi Co.,Limited

D-6AC(D-6AC,AMS 6431)Forged Forging Steel Rings Seamless Rolled Ring

Country/Region china
City & Province jiangsu
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Product Details

We are professional D-6AC(D-6AC,AMS 6431)Forged Forging Steel Rings Seamless Rolled Rings factory from china

D6AC is used where its excellent strength, ductility and toughness properties come into play, primarily in structural applications. The alloy’s good hardenability makes it suitable for use in fairly large sections.
 
Forging
Forging of this grade may be carried out from 2000 to 2250ºF (1090 to 1230ºC,) the actual temperature depending upon complexity of the part and the reduction required. A minimum finishing temperature of 1700ºF (930ºC) is recommended. Following forging an equalization treatment at 1200-1300ºF (650-705ºC) is recommended, followed by a furnace cool to 1000ºF (540ºC) and subsequent air cool.
 
Heat Treatment
 
Annealing: Heat uniformly to 1500-1550ºF (815-845ºC) and furnace cool at 50ºF (28ºC) per hour to 1000ºF (540ºC) then air cool to room temperature.
Hardening : Austenitize at 1550-1650ºF (845-900ºC). Small sections up to 1 in (25mm) may be air cooled, but larger sections should be cooled in oil or brine.
Tempering: Temper at 300 – 1200ºF (150-650ºC) for desired properties, using appropriate times according to section size. Double tempering is recommended.
 
Machinability
The alloy D6AC has a machinability rating 50-55 percent of that of B1112 screw stock. Either high speed steel or carbide cutting tools are recommended.
 
Weldability
The alloy is weldable, even in heavy sections. Preheat and postheat treatments are applicable here for the carbon content in question.

Forged ratio:

 

no less than 4:1

 

Technical Data:

 

According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing

 

Test:

 

Ultrasonic test according to SEP 1921-84 G3 C/c

 

Certificate of Quality

 

in addition the normal terms, production process, the mechanical property forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the Certificate of Quality

 

Marking:

 

Grade, heat NO. length will be stamped one each bar with required color

 

Payment:

 

30% advance by TT; Balance pay before the shipment against shipping documents or irrevocable LC at sight

 

 

 

  • Certification:
    ISO 9001:2008, PED Certificate,API, TUVRheinland, Bureau Veritas (BV), Lloyd Register (LR), ABS, RINA, Germanischer Lloyd (GL), Korean Register of Shipping (KR), Det Norske Veritas (DNV), Nippon Kaiji Kyokai (NK);
  •  Forging & Heat Treatment Equipment List

    Name & Description

    Forging Handling Capacities 

      Quantity

    3150 Tons Free Forging Hydraulic Press

    Max. Single Forging in 28 Tons

    5000mm Diameter Rolling Forging Machine  

    Max. Single Forging in 16 Tons

    1

    8 Tons Free Forging Hummer

    Max. Single Forging in 7.5 Tons 

    1

    6 Tons Free Forging Hummer

    Max. Single Forging in 5.5 Tons 

    1

    Tons Free Forging Hummer

    Max. Single Forging in 4.5 Tons 

    1

    60 Tons Forging Handling Operator  

    Max. Single Forging in 45 Tons  

    1

    10 Tons Forging Handling Operator 

    Max. Single Forging in 7.5 Tons   

    1

    80 Tons Crane

    Max. Single Ingot in 80 Tons 

    60/30 Tons Crane

    Max. Single Ingot in 60 Tons 

    1

    30/10 Tons Crane

    30/10 Tons 

    4

    Trolley Heat Furnace

    5000*1500*1200 mm  

    3

    Trolley Heat Furnace

    8000*2000*1600 mm  

    Trolley Heat Furnace

    6500*1500*1200 mm  

    3

    Vertical Heat Furnace

    Ø2500*10000 mm

    2

      Total Forging Equipment Quantity

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