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A36 carbon steel plate belongs to carbon steel. it is usually used in construction. A36 carbon steel’s strength, formability, and excellent welding properties make it suitable for a large variety of applications.

A36 carbon steel plate belongs to carbon steel. it is usually used in construction. A36 carbon steel’s strength, formability, and excellent welding properties make it suitable for a large variety of applications, including welding, fabricating, and bending. A36 Steel is available from otai Steel in angles, flats, plates, and sheets.

A36 carbon steel plate is known for its superior mechanical properties over commodity grades of merchant bar. The products are made to specific chemistry and mechanical properties ranges, allowing them to be used in engineered applications. Resulting shafts, axles, and gears can be used in the automotive industry and agriculture equipment.

We have a customer from Jordan, he sends me the email about the requirements of the quotation, bought the a36 carbon steel plate, Size: 8 -12mm x 1-meter x 2 meters. Quantity/ 2 each. it is a trade and engineering supplier company, our customer is satisfied with our product.

The property of the a36 carbon steel plate

• Popular steel plate grade used for a variety of structural applications.
• Available for heavy steel plate applications in up to 18” thickness.
• May have multiple specs certified on Mill Test Report, but guaranteed to be certified to meet ASTM A36.
• Ability to be riveted, bolted or welded.

Due to its wide variety of uses ,Otai Steel keeps a ready stock of the standard sizes of the A36 carbon steel plate, but other sizes may be available for special orders., Otai steel is a stable and reliable supplier for fortune 500 companies at home and abroad, such as thyssenkrupp, china north industries group corporation limited. Otai exports various tool steel and alloy to more than 30 countries from Europe and American, Middle East, and Asia. our steel materials meet DIN/ ASTM/EN/JIS etc different international standards. Welcome to connect with me.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

_{Our H13 STEEL -chapter 7}

_{We can still easily understand the alloy carbide phase in H13 steel from the Fe-Cr-C ternary phase diagram. According to the phase diagrams of the ternary isothermal sections of the Fe-Cr-C series at 700 ℃ [18 ~ 20] and 870 ℃ [9], for 0.4% C steel, (FeCr) 3C (M3C) and (CrFe) 7C3 (M7C3) type alloy carbide. Note that on the 870 ° C chart, M23C6 will only appear if the Cr content is greater than 11%). In addition, according to the vertical section of the Fe-Cr-C ternary system at 5% Cr, the steel containing 0.40% C is an α phase (about 1% Cr solid solution) and (CrFe) 7C3 alloy C compound in the annealed state. When heated above 791 ° C, austenite A is formed and enters the (α + A + M7C3) three-phase region, and enters the (A + M7C3) two-phase region at about 795 ° C. (CrFe) 7C3 disappears at about 970 ° C. Enter single phase A area. When the matrix contains ﹤ 0.33%, the three-phase region (M7C3 + M23C6 and A) only exists at about 793 ° C, and enters the (A + M7C3) region (at 0.30% C) at 796 ° C, and will remain until the phase. The residual M7C3 in the steel has the effect of preventing A grains from growing. Nilson proposed that for a 1.5% C-13% Cr component alloy, less stable (CrFe) 23C6 does not form [20]. Of course, the analysis of Fe-Cr-C ternary system alone will have some deviations, and the effect of adding alloy elements must be considered.}

_{Kindly reminder :}

Designation by Standards Mat. No. DIN EN AISI 1.2344 X40CrMoV51 X40CrMoV51 H13 Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.39 1.00 0.38 5.15 1.35 – 1.00 – – Description This alloy is one of the hot work, chromium type tool steels. It also contains molybdenum and vanadium as strengthening agents. The chromium content assists this alloy to resist softening if used at higher temperatures. Secondary hardening steels with good tempering reistance. It maintains …

WhatsApp: +86-769-23190193

Tel: +86-769-23190193

Fax: +86-769-88705839

Email: Jack@otaisteel.com

In 2020 new year ,different exihibitions under processing now .and I want to share a fare news of  foundry, diecasting and forge industry exihibition .

As you know ,Otai as the raw material stockist of alloy steel /Tooling steel, we set up long-term cooperation with fountry or forged supplier / mill factories ,and also keep a partner with our docustomer who professional on Diecasting / forged industry .

Biggest trade exhibition for foundry, diecasting and forge industry

Guangzhou International Foundry Diecasting and Forge Industry Exhibition:This international is unique as it will make the foundry diecasting and forge industry conscious of the latest and technologies and the developmental changes which are taking place.

Professional experts from all over the world will take an active part in this Diecasting and Forge  expo and will make this expo more advanced and more popular.  It will bring the industries related to automobile, aerospace, motorcycle, die casting, foundry, electrical appliances, and computer accessories under one roof.

The Diecasting and Forge  Exhibition will exhibit the latest products and services including Cool Die-casting Machines.  Heat Diecasting Machine . Low pressure Diecasting Machine, Peripheral Equipments . Fittings of Diecasting Machines . Gravity Casting .Hydraulic Press Machine, Oil Press Machine, Pattern Making, Equipment. Ventilation Device, Energy Saving and Environmental Protection Device, Diecasting and forge Parts . Also included  the Equipments such as :Pneumatic Equipment, Hydraulic and Fluid Control Equipment, Robot and Peripheral Equipment.

And the Diecasting and Forge  mold & mould equipment such as :  Design and Manufacture Technology of Diecasting Mold, Mold Restoration Technology, foundry equipment, Melting Process and Casting Equipment. Molding and Core Making Equipment Ferrous and Special Casting Equipment. Dipping Equipment, Diecasting Machine and Auxiliary Equipment.

Furnace Materials, Device for Producing and Examining Heat Preservation. Drying Device, Furnace Instrument and Control System.Furnace Machine And Component, Furnace Materials, Fireproof Materials, Gas Device and Heating Material.

Diecasting and Forge

Ms Elwa Lee

Mobile/WhatsApp: 0086-15899675236

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Elwa@otaisteel.com

_{Our H13 STEEL -chapter 6}

_{The behavior of alloy carbides in steel is related to their own stability. In fact, the structure and stability of alloy carbides  of H13 are related to the electron deficiency of the d-electron shell and the S-electron shell of the corresponding C-forming elements [17]. As the electron deficiency decreases, the metal atomic radius decreases, the atomic radius ratio of carbon and metal elements increases, and the alloy C compounds change from interstitial phase to interstitial compound. The stability of H13 the C compound decreases, and its corresponding melting temperature and The lower the dissolution temperature in A, the absolute value of its free energy of generation decreases, and the corresponding hardness value decreases. VC carbides with face-centered cubic lattices have high stability. They begin to dissolve at about 900 ~ 950 ° C, and begin to dissolve in large quantities above 1100 ° C (dissolution end temperature is 1413 ° C) [17]; it is at 500 ~ 700 ° C. H13  precipitates during the tempering process, is not easy to grow up, and can be used as a strengthening phase in steel. M2C and MC carbides formed by medium carbide forming elements W and Mo have close-packed and simple hexagonal lattices, they are less stable, and they also have higher hardness, melting point, and melting temperature. They can still be used at 500 ~ A strengthening phase of steel is used in the 650 ° C range. M23C6 (such as Cr23C6, etc.) has a complex cubic lattice, worse stability, weaker bonding strength, lower melting point and melting temperature (dissolved in A at 1090 ℃), only after comprehensive alloying in a few heat-resistant steels Only have higher stability (such as (CrFeMoW) 23C6, can be used as a strengthening phase. M7C3 (such as Cr7C3, Fe4Cr3C3 or Fe2Cr5C3) with complex hexagonal structure) has worse stability. It is as easy to dissolve and precipitate as Fe3C type carbide , Has a large aggregation and growth rate, and generally cannot be used as a high-temperature strengthening phase [17].}

WhatsApp: +86-769-23190193

Tel: +86-769-23190193

Fax: +86-769-88705839

Email: Jack@otaisteel.com

A friend asked, what kind of material is good for rubber mold steel? Rubber mold steel is divided into three types generally.

Rubber mold steel is divided into three types generally.

A friend asked, what kind of material is good for rubber mold steel? Rubber mold steel is divided into three types generally. The first one is economical，1045，1050. The second one has some requirements for mirror polishing property product. P20 mold steel, 1.2738 mold steel are good for it. Third, if the mold requires both have the rust prevention and mirror polishing propertye, I t is a good choice that take the 1.2083.1.2316.S136,and other air-based stainless steel with mirror polishing performance and rust prevention function, according to the mold production cost and gloss Degree requirements, choose the most suitable mold steel for yourself.

If you want to know more about mold steel,please click the link,or see as below.

P20 Chemical composition

1.2738 Chemical composition

1045 Chemical composition

1.2083 Chemical composition

1.2083 Steel Material Equivalent and Related Speciations

DIN W-N r 1.2083 Steel Material Mechanical Properties

Hardening after tempering value/MPa | 400 ℃.: 1910

Hardening after tempering value/MPa | 500 ℃ : 1860

Hardening after tempering value/MPa | 600 ℃ : 1130

Hardening after tempering value/MPa | 650 ℃ : 930

Forged of 1.2083 Steel metal material

Pre-Heating to 600℃，Then heat to forged temperature. Soak at 800-1100°C, ensure heat thorough. Then start forged, the forged temperature no low than 650℃. After forging, cool slowly.

Heat Treatment of DIN 1.2083 Plastic Steel

• 1.2083 Steel Annealing

Slowly heat to 750-800℃，then slowly Cools to 538℃(1000℉) in heat treatment furnace. Then cool in air. After annealing hardness HBS: 225 Max

• Din W-Nr 1.2083 Steel Hardening

1.2083 steel having very high hardenability and should be hardened by cooling in still air. The use of a salt bath or controlled atmosphere furnace is desirable to minimize decarburization, and if not available, pack hardening in spent pitch coke is suggested.

• Quenching of Stainless Plastic mold 1.2083 Steel material

Quenching temperature / ℃ : 1020~1050

Quenching medium: Oil cooling

Hardness: 50 HRc

• Tempering Of 1.2083 Steel

Tempering temperature / ℃ : 200-300

After tempering hardness HRC or higher: 28-34 HRc

Application of Din X42Cr13 W-Nr 1.2083 Steel HSS

1.2083 steel is suitable for electric erosion operation, suitable for acid good polishing mold plastics and requirements. Mainly used in the production of PVC mold, wearability and filling the mold, including the hot hard type of plastic mold, long-life mold, such as: disposable tableware mold, optical components production, such as camera, and the sunglasses, medical containers and etc.

Quality Assured of X42Cr13/1.2083 Steel

Quality assured by ISO 9001:2008 quality management system. Our all 2083 steel all had by SEP 1921-84 ultrasonic inspection (UT Test). Quality Grade: E/e, D/d, C/c.

Ms Sharon Wan

Mobile/WhatsApp: 0086-13580960968

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Sharon@otaisteel.com

How time flies , today is the last day of year 2019 , and i received the new inquiry from my regular client from Turkey , he request for 1.2312 Forged Thick Plate thickness from 180-400MM , and all the width he need 1800-2000MM , as these 1.2312 thick plate are forged , the forging ratio may have limited to the width between 800-1300MM , and the bigger thickness follow with bigger width , and the length with this kind forged plate could be control from 3000MM to 5000MM . We provide the most effective advice to our customers to save cost for our regular customer and finally we may come to an agreement and Promote cooperation for a win-win situation .

The kind of 1.2312 Forged thick plate we could provide them to all over the world not only Turkey , and we have specilized to provide this materials for more than 10 years old . DIN 1.2312 Tool steel is a plastic injection mould steel material, the steel by “super clean” produce process, pre-hardened, showing the height of micro pure and excellent homogeneous structure, excellent polishing and light etching engraving. After heat treatment, processing and polishing performance is very good, can be carried out, and can be processed, suitable for the surface treatment of chrome, material hardness, good toughness, good mechanical processing performance. Gold microstructure is martensite and bainite structure. Main be applied to in plastic steel mold. like car injection moulding, PVC, PP plastic injection molding etc.

1.2312 Forged Thick Plate only request for thickness above 250MM , the other thickness below 250MM and above 20MM we have stocklist of hot rolled plate and round bar and flat sections can be cut to your required sizes. 1.2312 tool steel ground bar can also be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances. 1.2312 steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.

Thanks for pay attention to my blog about 1.2312 Forged Thick Plate ! Happy New Year 2020 . We wish you happy , healthy and wealthy in the new year  , i wish you all enjoyable cheerful and best of the luck always years after years .

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

ESR 1.2379 Round Bar Tool Steel Year-end Summary . Time flies , today is 30th De. 2019 , in the end of 2019 , Otai Special Steel want to make a Year-end summary for this Alloyed cold working tool steel , 1.2379 Tool Steel with high carbide formers content. It is characterized by high resistance to abrasive wear, greater ductility, extremely low tendency to deformation and hardening cracks, very high hardenability, as well as significant dimensional stability during hardening. In addition, it shows the durability of the blade, even as a result of overheating of the tool during intensive use, thanks to its high chromium content, which contributes to the reduction of thermal conductivity. Another result of the high chromium content is corrosion resistance in air and fresh water.

ESR 1.2379 Round Bar Tool Steel is ideally suited for the manufacture of tools that require high abrasion resistance and shape stability during hardening. It is used for making punches, cutters, draughts, reamers, anvils for forging scythes, tools for cutting horns, marble, milling cutters, retractors, rollers, jaws for cold rolling of threads, knives for the production of nails, cutting boards for blanking dies of various shapes, tools for cutting paper and plastics, cold working dies, deburring machines, drawing dies, and gauges. Welding is hard and should be considered only as a mean to repair a damaged tool .

ESR 1.2379 Round Bar Tool Steel is similar to American standards ASTM D2 and Japanese standards JIS SKD11 and Chinese standards GB Cr12MoV .

ESR 1.2379 Round Bar Tool Steel and flat sections can be cut to your required sizes. D2 tool steel ground steel bar can also be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances. D2 Tool Steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.

Ms Monica Yu

Mobile/WhatsApp: 0086-13711903397

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Monica@otaisteel.com

AISI 1.2343 steel is a typical alloy Tool steel, Its Hot work Mechanical Properties is very nice. otai is a reliable Aisi 1.2343 supplier.

Time flies, it’s the end of 2019, every company is concluding 2019 and setting the new goals of 2020, so do our company otai special steel company.

In 2019, the main product of Our OTAI Special Steel is the 4140 steel. We are professionals in different kinds of steel, like tool steel, carbon steel, and alloy steel. Usually, our warehouse kept the 4140 steel plates for daily 800Tons. however, H11 is also the best-seller product of our otai company.

Property of aisi 1.2343

AISI 1.2343 steel is a typical alloy Tool steel, Its Hot work Mechanical Properties is very nice. It is that the US air-hardening hot work die steel, the steel-casting industry is one of Europe’s three most common hot die steel, steel carbide small, uniform distribution, resistance to thermal fatigue resistance and corrosion properties good, good hot and cold workability, hardenability well in temperature has a thicker heat forced, oxidation resistance, high toughness and wear resistance.

The application of h11

The application of h11 is very wide, H11 Tool Steel is used in hot forging dies, hot forging die inserts, hot gripper dies, hot nut tools, hot header dies, brass forging and pressing dies, hot forging aluminum base dies, aluminum casting and extrusion dies, zinc die casting dies, extrusion mandrels, plastic molds, cores, die holder blocks, hot press dies, hot work punches, etc.

The inquiry of aisi 1.2343

Here is the inquiry of one customer.

I need a couple of short H11 tool steel bars, Is there a cut to size service available for this?

Size in mm

No.                         Dia                          Length

1                              33                           200

2                              64                           270

3                              74                           210

4                              88                           140

5                              103                         180

6                              124                         50

7                              165                         250

8                              170                         110

If grouped and cut to size,

No.(Grouped)        Dia                          length

1                                33-40                     200

2,3,4                         90                           620

5,6                            130                          230

7,8                            170                           370

kind regards

We provided the proper size as our customer’s requirement, he was satisfied with our h11 steel, please don’t hesitate to connect with me if you also have the demand.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

Our OTAI Special Steel is the 4140 steel suppliers. We are professional in different kinds of steel, say tool steel, carbon steel and alloy steel. Usually, our warehouse kept the 4140 steel plates for daily 800Tons.

Before talking about the 4140 steel suppliers, I would like to share my story about me first.How time flies, this unlucky year finally is coming to an end very soon. When I recalled this year, I always felt sorry about my little son and much grateful and appreciated for my company OTAI Special Steel to give me the best special support.
At the early beginning of this year, it seems that there was no good start. As my little son got a fever at the 1st day in Lunar year. One month later, he had infectious disease because of the high peak of Epidemic virus in the kindergarden. He was in hospital for about two weeks. Always, I felt sorry and self-blamed to my little boy from the bottom of my heart. Because I thought that it was me did not take good care of him. I didn’t give him enough care and attention when he needed me most at his special moment.
Woe is not alone, after one month, my husband’s finger was hurt by the machine . And he had to be in the hospital for at least two weeks. Therefore I decided that I had to give up my job.I talked with my boss Jack about the details for a long time. And he also knew that how the difficult times I was going through. He said: “ if there is any difficulty no matter on the life or the economy, I could do my best to help you. The door of company will be open for you all the time. And for this period, you could take leave first for taking good care of your family, one month, 6 months or more, whatever you need. When your family is better, you could come back any time.” At this moment, I cried and was thankful because of his kindness.
I would like to say even I was unlucky to meet such setbacks on the life. But I am extremely lucky to join this company OTAI Special Steel (4140 steel suppliers). After 6 months later, I resumed to work, to come back this warm and lovely company. I understood that why our company got the firmed trust from different customers all over the world. I found why OTAI is here for more than 20 years. He not only cares about all the customers, but also pay more attention to the staff. So when you choose the 4140 steel suppliers, you have to find some one that could be reliable and trustable.

Ms Phoenix Li

Mobile/WhatsApp: 0086-13925830813

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Phoenix@otaisteel.com

As you now ,Otai focus on tooling steel ,the hot work steel 1.2344 (H13)/1.2343 /1.2714 etc,and plastic mold steel 1.2311(P20) /1.2083 /1.2312 /1.2379 etc.

A customer need 1.2344 Hot work tooling steel .and send the RFQ /List demand to us,we also update our best price to them .

It is a little pity that we did not start business cooperation in 2019  . I share the last email from the customer here :

1.2344 Hot Work Tool Steel in the Otai Warehouse

The email from 1.2344 hot work tooling steel customer ：

Dear Elwa :

Thank you very much for your message and calling.

You know, we are company from S***, which sale steel, special tooling steel. We have one big stock here, and we buy a lot of tooling steel materials for our stock.

We have a lot of cutting machine, because we have many customers, and they want to cut a smaller pieces of all materials. So, we are cutting all the time. We have a lot of work for cutting materials to the smaller pieces. And we have a little bit time (sometimes no time) to choose or decide to order next steel materials. Of course, we need its, and we have to find a time for it. But just now is on S*** holiday time, and we have a lot of employes on the holidays.

My collegue, which is responsible for ordering new materials, is on holiday, and he will return next week. Of course, he don´t work only on ordering, he have a lot of next work.

So, please, we need time to decide and choose the supplier for this materials, we calculate with you of course, but I have no answer at this time for you. So, please, give us the time to correct deciding, and after I will send you my next questions, or answer on your offer. Thank you.

2020 new year coming soon ,there must have something new change ,and hope we can set up win-win cooperation with  the customer soon .

Ms Elwa Lee

Mobile/WhatsApp: 0086-15899675236

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Elwa@otaisteel.com