jiangsu liangyi co.,limited
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Price: | 100.0 USD |
Payment Terms: | T/T,L/C |
Place of Origin: | Jiangsu, China (Mainland) |
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We are professional AMS 6418(AMS 6418F,HY-TUF,Hy Tuf)Forge Bit Forging Forged steel Percussion Rock Bits Body Bodies from china
Composition: Shall conform to the following percentages by weight, determined by wet chemical methods in accordance with ASTM E350, by spectrographic methods in accordance with Federal Test Method Standard
No. 151, Method 112, or by other analytical methods approved by purchaser:
min max
carbon 0.23 - 0.28
Manganese 1.20 - 1.50
Silicon l. 30 - 1.70
Phosphorus -- 0,025
Sulfur -- 0.025
Chromium 0.20 - 0.40
Nickel 1.65 - 2.00
Molybdenum 0.35 - 0.45
Copper -- 0.35
AMS 6418 Shall be J45=24 min, determined on the standard end-quench test specimen in accordance with ASTM A255 except that the steel shall be normalized at 1725"F~25 (940"C~15) and the test specimen austenitizedat 1600"F + 25 (870"C~15). The hardenability test is not required on a product which will not yield a suitable specimen but the steel from which the product is made shall conform to the hardenability specified.
Properties After Heat Treatment: Product 2.50 in. (62,5 mm) and over in nominal diameter or distance between parallel sides shall have transverse tensile properties as specified in 3,3.5.1 after being heat treated as
follows: Normalize by heating to 1725"F~25 (940"C~15), holding at heat for 60 min. + 10, and cooling in air. Harden by heating to 1600"F + 25 (870°C + 15), holding at heat for 60min.~10, and quenching in oil at 120•- 140"F (50"- 60°C),Temper by heating to 550°F + 25 (290"C~15), holding at heat for2 - 3 hr, and cooling in air.
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
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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
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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
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Marking: | Grade, heat NO. length will be stamped one each bar with required color
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Payment: | 30% advance by TT; Balance pay before the shipment against shipping documents or irrevocable LC at sight
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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.8000*5000*1500mm | 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 |