D-6AC/D-6AC/AMS 6431 Forged Forging Forge Alloy Steel DTH Hammer Drilling Drill Bits Body Bodies Heads Shank sddf manufacturer from China jiangsu liangyi co.,limited

D-6AC/D-6AC/AMS 6431 Forged Forging Forge Alloy Steel DTH Hammer Drilling Drill Bits Body Bodies Heads Shank

Price:	100.0 USD
Payment Terms:	T/T,L/C
Place of Origin:	Jiangsu, China (Mainland)


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Product Detail

Model No.: sddf

Production Capacity: 1000 tons

Delivery Date: 60 days

material grade of forged Drill Bits Body: 6418

origin of forged Drill Bits Body: china

packing: plywooden case

export to country: american european

Means of Transport: Ocean,Air

Packing: plywooden cases

Brand Name: liangyi

size of forged Drill Bits Body: as per the drawing

delivery time: 30 days

certificate: API

We are professional D-6AC(D-6AC,AMS 6431) Forged Forging Forge Alloy Steel DTH Hammer Drilling Drill Bits Body Bodies Heads Shank

We are professional D-6AC(D-6AC,AMS 6431) Forged Forging Forge Alloy Steel DTH Hammer Drilling Drill Bits Body Bodies Heads Shank 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.

Product Flow

1.Inquiry with drawings in details.
2.Confirm steel material, chemical compositions, mechanical properties, tolerance.
3.Confirm payment terms,order materials or check material in stock.
4.Check material chemical compositions, material weight, dimensions.
5.Cut materials record weight, making mould for casting of pr-hearting for forging.
6.Forging ratios, heat treatment ,dimension check.
7.Rough machining, UT test,heat treatment.
8.Semi-finish, quenching,
8.Fine machining, UT test, dimension inspection, mechanical properties test.
9.Customer inspection, packing, delivery arrangement.
Steel ingot making
EAF+LF+VD/VAD or ESR
Manufacturing process
EAF + LF + VD+ Forging+ Normalizing & Tempering + Rough machining + UT test + Quenching & Tempering + Precision machining
Report
Chemical composition report, Physical properties report, Heat treatment report, Dimensional inspection report, NDT report
Nondestructive test (NDT)
UT ( ultrasonic testing ), MT ( magnetic particle testing ), PT ( penetrant testing)
Quality certification : ISO 9001: 2008, IQNET

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 Trea

Name&Description	Capacity	Quantity
3600Thydraulic press	Max. single forging in 18T	1
2000T hydraulic press	Max. single forging in 9T	2
800 hydraulic press	Max. single forging in 5T	1
6T electrical hydraulic hammer	Max.single forging in 5T	1
3T electrical hydraulic hammer	Max.single forging in3T	1
Air hammer	Max.single forging from250kg to 1000kg	7
Forging operation machine	Max.singe forging from20T-5T	7
Heat treatment Furance	Max.800050001500mm	11
CNC driling machine	Max.5000mm	2
Vertical lathe	From 1600 to 5000mm	60
Horizontal lathe	Max.5000mm	70
Band sawing machine	260-1300mm	36

D-6AC(D-6AC,AMS 6431) Forged Forging Forge Alloy Steel DTH Hammer Drilling Drill Bits Body Bodies Heads Shank

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