D2 Die Steel-Luoyue Precision Metal

Coldwork tool steels include the highcarbon,highchromium steels or group D steels. These steels are designated as group D steels and consist of D2, D3, D4, D5, and D7 steels. These steels contain 1.5 to 2.35% of carbon and 12% of chromium. Except type D3steel, all the other group D steels include 1% Mo and are air hardened. Type D3 steel is oil quenched;though small sections can be gas quenched after austenitization using vacuum. As a result, tools made with type D3 steel tends to be brittle during hardening. Type D2 steel is the most commonly used steel among the group D steels.

Equivalent Grades :
DIN 1.2379
NI KU
B.S. BD 2
ASTM A681
FED QQT570
SAE J437
SAE J438
UNS T30402

Chemical Composition :
C Mn Si S P Cr V
.35-.45 .60-1.00 .60 .03 .03 11.0-13.50 1

Fabrication and Heat Treatment Heat Treatment
D2 steels should be preheated very slowly to 815ºC (1500ºF) and then temperature can be increased to 1010ºC (1850ºF). They are then held at 1010ºC (1850ºF) for 20 to 45 minutes and air cooled (air quenched).

Forging : Forging of D2 steels can be done from 1065ºC (1950ºF) down to 954ºC (1750ºF). Do not forge below 926ºC (1700ºF). Annealing Annealing of D2 steels should be done at 871 to 898ºC (1600 to 1650ºF) followed by slow furnace cooling at 4.4ºC (40ºF) per hour or less.

Tempering : D2 steels can be tempered at 204ºC (400ºF) for achieving Rockwell C hardness of 61 and at 537ºC (1000ºF) for a Rockwell C hardness of 54. Request Callback

Application

Automobile Industry, Construction, Pharmaceutical / Chemical Industry, Oil & Gas Industry, D2 tool steels are used for long run tooling applications, where wear resistance is important, such as blanking or forming dies and thread rolling dies.

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1. Stock view



2. Processing and Technology for heating processing

Cutting processing   Quenching   Tempering Annealing



3. Quality testing

1.      Inspection Institution

Shanghai Fuda Testing Technology Group Co., LTD. Nanjing Branch

Focus on analysis, testing, testing, r & D four service areas. Analysis fields include component analysis, formula analysis, failure analysis, structure analysis, methodology development and validation, raw material quality control/evaluation, consistency evaluation, feature analysis and other directions; The testing field involves physical and chemical properties testing, toxic and harmful substances testing, flame retardant performance testing, reliability testing and other directions; The testing field involves energy spectrum, electron microscope, spectrum, chromatography, mass spectrometry and other directions; The r&d field involves formula development, formula upgrading, formula customisation, cooperative research and development and other directions.

Beijing Zhongke Chemical Technology Research Institute

It is a chemical technology research institution based on scientific research and testing. They adhere to paying equal attention to basic research and applied research, and combining applied research and technology transformation, developing into a comprehensive research institute characterised by "task-oriented disciplines". Approved by the relevant national departments, the company has become a third-party analysis and testing technology service unit, and has obtained CMA qualification certification. It has carried out research and development and design, analysis and testing, test and verification, generic processing, information and intellectual property services, providing public services for innovation of technology-based enterprises. Supported by the government innovation Fund, the institute has been awarded as a national high-tech enterprise.



2.Inspection Machining

   Metal composition testing machine   Computerised Materials Torsion Testing Machine   Metal bar composite rod bending tensile strength testing machine

3. Material test certificate

4. Packaging

  In the steel export activities, we also need to pack the steel to prevent the steel from being scattered in the transportation process. In the hoisting process, it is necessary to lift the steel. So steel is very necessary in the export process. Below is the picture of packaging：



According to the requirements of the state of steel materials, the use of binding, bare, frame, pallet.

Packing standard: according to the following national standard requirements (the parts beyond the requirements will be specified separately)

GB／T191 packaging-pictorial marking for handling of goods

GB／T4857 (all parts) basic test for transport packages

GB／T4879 rustproof packaging

GB／T5048 damp-proof packing

GB／T7350water-proof packing

GB／T8166 Package cushioning design

GB/T4892-1996  Hard straight square transport packaging size series

GB/T13201-91 Cylinder transport package size series

GB/T16471-1996Design and make the size limit of transport package

5. Logistic



By SEA By Air By Express

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1. Company profile

Luoyue Precision Metal established in 2018, is a leading Stockists and global distributor for Metal Raw Materials like Steel/Aluminum/ Stainless steel/Copper/ Nickel Rods, Bars, Plates, Sheets,Pipes, fittings, fasteners, Inconel alloys, Wire and Wire-Mesh to customers from aerospace, automotive, electronics, precision manufacturing, ordnance, marine, shipbuilding, oil & gas, power plant and construction.

The company has a high-precision, high-efficiency modern processing site, CNC machine tools and complete testing and inspection technology, and introduces international advanced technologies.

2. Certificates. (Business certificate/ISO9001/Trading certificate/SGS/FormE)

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3. Our customers

Customer visits

4. Past Inquiry

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If you need product information or price, please fill in your contact information in the form below, we will usually contact you within 12 hours. You could also email me info@lyapm.com to get prompt reply.

Customer Feedback:

Comments

HOT FAQ:

Q1. Where is your factory ?

A1: Our company’s processing center is located in Shanghai, China.Which is well equipped with kinds of machines, such as laser cutting machine,mirror polishing machine and so on.We can provide a wide range of personalized services according to the customers’ needs.

Q2. What are your company's main products ?

A2: We are professional one-stop meta supplier for Aluminium/ steel/ stainless steel/ copper etc.

Q3. How do you control quality ?

A3: Mill Test Certification is supplied with shipment, Third Party Inspection is available.

Q4. What are the advantages of your company ?

A4: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.

Q5. How many coutries you already exported ?

A5: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt,Turkey, Jordan, India, etc. We are based in Shanghai, China, start from 2019,sell to Southeast Asia(50.00%),South America(10.00%),North America(5.00%),Eastern Europe(5.00%),Eastern Asia(5.00%),Northern Europe(5.00%),Domestic Market(15.00%),Mid East(10.00%). There are total about 11-50 people in our office.

Q6. Can you provide sample ?

A6: Small samples in store and can provide the samples for free.

Customized samples will take about 5-7days.

Q7Could we visit your factory?

A7: Sure, we welcome you to visit the factory , check our production lines and know more about our strength and quality.

Q8: Do you have quality control system?

A8: Yes, we have ISO, BV, SGS certifications and our own quality control laboratory.

Q9: Can you arrange the shipment for us?

A9: Yes, we have designated sea freight and railway freight forwarders with decades of experiences and we get the best price with earliest vessel and professional service.

Q10: How long is the delivery time?

A10: Generally it is 7 days if we have the exact goods in our stock. If not, it will take around 15-20 days to get goods ready for delivery.

Q11: Can I get some samples?

A11: We are glad to provide free samples to you, but we do not offer the freight.

Q12: What is your after-sale service?

A12: We provide after-sale service and offer 100% guarantee on our products.

Q13: What is your MOQ?

A13: Depend on the request material, sometimes for customized one have MOQ.

Q14: why should you buy from us not from other suppliers?

Luoyue precision metals (Shanghai) Co., Ltd. is located in Shanghai, China. It is one of the most professional metal material suppliers in China, providing nearly 100 kinds of metal materials, from raw materials to CNC processing

Q15: what services can we provide?

Accepted Delivery Terms: FOB, CFR, CIF, EXW, CIP, DDP, Express Delivery

Accepted Payment Currency:USD,EUR,JPY,CAD,GBP,CNY;

Accepted Payment Type: T/T,L/C,D/P D/A

Language Spoken:English,Chinese,Spanish

Supply Ability

500 Ton/Tons per Month

Packaging & Delivery

Airworthy package. Waterproof cloth, wooden case, craft paper and steel belt packing.

Port: shanghai

Exhibition

Production Workshop

Package & Shipping

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