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 AISI 4130 34CrMo4 SCM430 SAE 4130 Forged Forging Forge Alloy Steel DTH Hammer Drilling Drill Bits Body Bodies Heads Shank from china
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Applications
AISI 4130 is widely used for a variety of applications in the oil and gas sector. Typical applications include components such as valve bodies, pumps and fittings.
Forging
Preheat carefully, then raise temperature to 950-1200°C for forging. Do not forge below 950°C.
Annealing
Heat the AISI 4130 slowly to 850°C and allow enough time for the steel to be thoroughly heated. Cool slowly in the furnace to 480°C followed by air cooling.
Stress Relieving
When parts are heavily machined, ground or otherwise subject to cold work, stress relieving will be beneficial prior to any hardening.
Hardening
AISI 4130 steel is usually supplied ready heat treated with a hardness of 18-22HRC. If further heat treatment is required annealed AISI 4130 should be heated slowly to 870-890°C and after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature.
Tempering
Heat carefully to a suitable temperature selected by reference to a tempering chart or table (usually between 400-570°C, soak at the temperature for 2 hours per 25mm of ruling section, then all to cool in the air. Tempering between 250-375°C is not advised as tempering within this range will seriously reduce the impact value.
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 |