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1.2379 steel equivalent Cr12MoV, is China standard cold work tool steel. Cr12MoV is equivalent for DIN 1.2379, AISI D2, JIS SKD11, and grade K110. Many customer purchase Cr12MoV as 1.2379 steel equivalent, main reason is Cr12MoV have similar chemical composition and performance, but price is much cheaper. This article will explain the reason step by step.

Last article we explain the reasons why people chose 1.2379 steel equivalent Cr12MoV. Let’s continue.

More reasons why chose 1.2379 steel equivalent Cr12MoV

1. China standard steel quality is good, and qualified at most condition to use 1.2379 steel equivalent D2, SKD11, K110. Manufacturing standard is GBT1299-2000YB, from big mill, which is guarantee of stable quality.

2. Some customer require very high performance, then consider ESR process, price still be much cheaper than other 1.2379 steel equivalent

Asia Customer’s application for 1.2379 steel equivalent Cr12MoV

OTAI Special Steel visit north Asia at October, 2019. We visited our old friend in Moscow who continuous purchase OTAI Cr12MoV during this trip. This is a big tooling knives factory. We visited their workshop and finished products. They will established a new factory next year, so we mainly discussed the business expand plan. Customer require OTAI Steel guarantee supply capacity and stable quality as before. Our engineer also provide his suggestion for heat treatment work in their plant.

North Asia customer use 1.2379 steel equivalent Cr12MoV produce three series tooling knives

• Knives for rotary crushers: This kind knives consume a lot of Cr12MoV steel, both in China and other Asia countries.

• Wood processing knives

This group knives is very suitable to use D2 steel equivalent Cr12MoV

• Knives for rubber and plastic

OTAI Special steel focus on special steel industry above 20 years. Our professional engineer always provide our customer most suitable technique proposal. If you are purchasing material D2, 1.2379, SKD11, K110, you can contact us for a trail. It is good option for you to consider China standard 1.2379 steel equivalent Cr12MoV.

Ms Susie Li

Mobile/WhatsApp: 0086-13826999755

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Susie@otaisteel.com

D2 steel equivalent Cr12MoV, is China standard cold work tool steel. Cr12MoV is equivalent for DIN 1.2379, AISI D2, JIS SKD11, and grade K110. Many customer purchase OTAI Steel supplied Cr12MoV as D2 steel equivalent, main reason is Cr12MoV have similar chemical composition and performance, but price is much cheaper. This article will explain the reason step by step.

Cr12MoV chemical composition comparison with D2, 1.2379, and SKD11

Below tables show D2 steel equivalent chemical composition for each grade, most composition is very similar, Mo and V contents have more or less difference for different grade. Hardness after annealed is the same.

The reason to use D2 steel equivalent Cr12MoV

1. Mechanical performance for Cr12MoV and other D2 steel equivalent are similar.

Under the same manufacturing process, if chemical composition similar, the mechanical performance is also similar. OTAI Cr12MoV is directly supply by top three China mill, strictly follow standard GBT1299-2000YB

2.Price for Cr12MoV is much cheaper compared other D2 steel equivalent 1.2379, SKD11 and D2

Generally speaking, Cr12MoV price is cheaper 1300-1800$/Ton compared D2 and 1.2379. If your final product can use Cr12MoV, can save huge cost.

3.Cr12MoV is the most widely used cold work tooling steel in China, usage is huge, more often used than other D2 steel equivalent

In China, we use Cr12MoV to make knives, cutting tools, just like in the United states, use D2, in Europe use 1.2379. Similar application can use similar material of course, so normally used tooling steel in China also can normally used in worldwide, but the time is accept might be very long. To change people’s mind is not easy job.

To be continued……

Ms Susie Li

Mobile/WhatsApp: 0086-13826999755

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Susie@otaisteel.com

1.2714 Tooling Steeel :

Material properties 40 HRC pre-hardened standard grade suitable for hot work tools and for the plastic mold industry. High resistance to wear, high toughness, good polishing properties.

1.2714 tooling steel applications Forging dies, hot shear knives, hot punching tools, die holders. Plastic injection or compression mould cores and cavities, large – size moulds with high quality finish, compression dies under high mechanical and thermal stresses. Thermoplastics (PE, PS, PP), LFT, thermosetting plastics, ABS, transparent melts.

A German customer sent an Inquiry of 1.2714 tooling steel to us ,the list as follow :

• W.1.2714 hot rolled, +QT to max 380 HB, bar end sawn cut, 2 sides as rolled.
• Thickness:20-30-40-50-60-70-80-90-100-110-120
• Width: 800 -1150mm
• Length: 3000-4000 mm
• Each thickness 2 tons

We did not win the offer because size and MOQ unworkable .

For the 1.2714 tooling steel material, there is rare stock of hot rolled ,thickness 50-120mm in the inventory market .

If arrange  hot rolled new production ,MOQ : 100 tons each size ,an order MOQ 300 tons which suitable .Customer t can not meet the MOQ .

For forged new production , There is only  the state mill such as Baosteel / Dongbei steel ‘s machine can produce   Max width 810mm

• MOQ : 20 tons each size
• Price higher 40%than market price
• Leadtime will follow their production line’s schedule (more than 3 months )

It is also impossible for the 1.2714 RFQ .

If we arrange the order to Small and medium forged house, their forging equipment only support to producing width Max 610mm .Their Forged hammer like the photo,it  can not forged the width 800mm by one time ,It need to forged it again and again, the edge will warped up,but not smoothly.especially for the thin thickness 20-40mm ,it is too thin to arrange forged .

We suggest customer  change the width  810mm as 610mm , he think it is unworkable for them ,and they ordered 1.2714 tooling steel from local market again finally .

Ms Elwa Lee

Mobile/WhatsApp: 0086-15899675236

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Elwa@otaisteel.com

I sell H13 material to different countries, different cities, the Middle East, South America and so on, but some customers who are very well with me asked, why I consult the prices from several suppliers. The price of H13 can be such different.

I sell H13 material to different countries, different cities, the Middle East, South America and so on, but some customers who are very well with me asked, why I consult the prices from several suppliers.

The price of H13 material can be such different. The quotations of several suppliers, there are $500-800  / ton difference. I explain to him that, when purchasing H13 in China, if you need to compare prices, the first is, whether the prices are compared at the same time ?how long of the validity period of quotations? Because H13 contains the alloy elements vanadium and molybdenum, vanadium accounts for 0.80% ~ 1.20%, and molybdenum accounts for 1.10% -1.75%. In China, the price of precious metals fluctuates.

Once the precious metals have risen, H13 material will definitely increase a lot during that period. On the contrary, if the alloy elements chromium, vanadium, and molybdenum all fall, H13 during that period also decreases. It will follow the decline, but this is very important point when purchasing, Do you have the confidence to grasp the perfect timing?I guess no one can sure one thing, the Chinese alloy market will up or down.

Frankly speaking,so when purchasing, it depends on whether your company can afford the current H13. Price, if the price is still acceptable, I recommend purchasing as soon as possible. Of course, if there is a lot of material in stock, and ensure that in the next six months to one year, your factory’s orders will not be affected by the rise in precious metals, then the purchaser could wait and see.

Which level of mill?

In China, there are thousands of factories can produce H13 material. Most people recognize DongBei Brand,But,be careful,there are many “DongBei”in internat,the names looks similar,but there are not from the real “DongBei” steel factory. And the smallest ones are those with only a small steelmaking furnace. The machinery and equipment are relatively crude and very old. The factory environment is crazy poor, and the quality is unstable&unacceptable. Therefore, the price difference of one ton is $ 500-800, It is possible at all.

Some of the purchases ,they are not engineers, and they don’t understand the technology well, but their companies are well-known , also their quality is very well-known in the industry. I would recommend purchaser to stake from some state-owned enterprise . Although the price seems uncompetitive, for the end user, the price of this raw material do not affect the product cost much, and it the H13 die could be used longer than other factories, and the quality is guaranteed.

There is no best steel,but there is most suitable one,which level is good for yours？

Ms Sharon Wan

Mobile/WhatsApp: 0086-13580960968

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Sharon@otaisteel.com

M42 steel is a high-cobalt high-speed steel. It is mainly used for high-toughness precision wear-resistant hardware cold stamping die. The steel has high hardness, up to 70HRC, good thermal rigidity, high temperature hardness and easy grinding.

The W2Mo9Cr4VCo8 steel code is M42. It is a U.S. grade superhard cobalt high-speed tool steel. The mass fraction of vanadium in M42 steel is not high (1%), and the mass fraction of cobalt is high (8%). It is mostly dissolved in the matrix and uses high matrix hardness to improve wear resistance. The steel has good hardness, hot hardness, abrasion resistance and grinding properties. The heat treatment hardness can reach 67 ~ 70HRC, but there are also special heat treatment methods to obtain a hardness of 67 ~ 68HRC. This can improves its cutting performance (especially intermittent cutting) and improves impact toughness.

Characteristics of M42:
1.It is with high red hot hardness.
2.High wear resistance and cutting ability.
3.High impact toughness, fine and uniform grain, high toughness.
M42 application:
It is suitable for manufacturing various abrasion and impact resistant tools for powerful cutting. Advanced dies, screw dies, punches that require toughness and complex shapes. Tool industry: scraper, hobbing knife, iron knife, drill, etc.Forging industry: forging die.

Our OTAI is the Chinese supplier and stockholders for M42 High speed steel. We could supply it in round bar, plate, flat, square and hexagon shape. We are the very valuable and trustable supplier who supplied for the Thyssen Krupp and Chinese ordnance industry group. We exported the special steel to more than 30 countries all over the world for more than 20 years already, and they are passed the standard of America, Germany and Japan.

Ms Phoenix Li

Mobile/WhatsApp: 0086-13925830813

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Phoenix@otaisteel.com

Otai focus on alloy steel business over 20 years ,we do our business trip to visit customer or new oversea market each year in recently 5 years .

We got a feedback from a customer that : you visited my customer as you coming to our market ,and our customer use you own price to let us cut down our cost .it is hurt for our us  .I was deeply touched on the feedback .

We aimed at knowing the market better by steel business trip to customer .

We know customer better ,and then set up long-term &stable cooperation with 1-3 customers,but not sell our alloy steel  to each customer directly .

–Otai do the wholesale service of mold steel & Alloy steel .

–Otai focus on long-term & win-win cooperation of steel business .

–Otai in accordance with the principle of prudent operation,and will visit and follow customer feedback by business trip.

–Otai aim at stable partner-customer, but not sell to each customer ,The order ,the more the better ;The customer ,the more professional ,the better .

For the steel business trip to alloy steel market , it is a long-term direction combined with Otai’s business model. However ,the purpose is to know the market well, but not looking for each customer for cooperation.

Seller choose cooperated partners same as  buyer choose their suppliers .

Just like customer will choose their suppliers, we also choose the customer according to our business model. There is more than 20 suppliers in customer’s supplier list,Customer will contact or meeting with them in the early stage,but not means they will cooperate with each of them . (the suppliers ,may some one is mill factory ,distributor ,stockist same as Otai steel ,or trade company) Customer choose or change them according to their business mode /order request / payment terms etc.,As seller ,we focus on set up long-term cooperation with 1-3 customers,but not sell our material to each customer or end user in a oversea market . ( it will take too much time to contact the purchase requirement and follow up feedback of after-sale,we do wholesale ,but not retail )

Knowing a market better can help avoid business risk as possible as we could.

International business will under bigger trade risk under government policy /Credit / exchange rate /price / Shipment etc. ,which compared with the local business activities, Otai do the steel business with steady management over 20 years ,we more seriously for market than other peers .Otai only in charging of reasonable but not huge profit ,and avoiding the risk both customers & Otai as possible as we could .

If we know a oversea market better ,we will know what should we do ,how to do well ,and what we can do better .

special alloy steel

Ms Elwa Lee

Mobile/WhatsApp: 0086-15899675236

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Elwa@otaisteel.com

_{Our H13 STEEL -chapter 3}

The carbon content of the steel determines the matrix hardness of the quenched steel. According to the relationship between the carbon content of the steel and the hardness of the quenched steel, it can be known that the quenching hardness of H13 steel is about 55HRC. For tool steel, part of the carbon in the steel enters the matrix of the steel and causes solid solution strengthening. Another part of the carbon will be combined with the carbide-forming elements in the alloy elements to form alloy carbides. For hot work die steel, in addition to a small amount of residual, this alloy carbide is also required to disperse and precipitate on the quenched martensite matrix during tempering to produce two hardening phenomena. Therefore, the properties of hot work die steel are determined by the uniformly distributed residual alloy carbon compounds and the structure of tempered martensite. It can be seen that the C content in steel cannot be too low.

H13 steel containing 0.5% Cr should have high toughness, so its C content should be maintained at a level that forms a small amount of alloy C compounds. Woodyatt and Krauss pointed out that on the Fe-Cr-C ternary phase diagram at 870 ℃, the position of H13 steel is better at the interface of the austenite A and (A + M3C + M7C3) three-phase region. The corresponding C content is about 0.4%. The figure also shows that increasing the amount of C or Cr makes the amount of M7C3 increase, and A2 and D2 steels with higher wear resistance are compared for comparison. It is also important to keep the relatively low C content so that the Ms point of the steel is taken at a relatively high temperature level (the general information of Ms for H13 steel is introduced at about 340 ° C), so that when the steel is quenched to room temperature An alloy cementite structure mainly composed of martensite plus a small amount of residual A and residual uniform distribution was obtained, and a uniform tempered martensite structure was obtained after tempering. Avoid the transformation of excessive retained austenite at the working temperature to affect the work performance or deformation of the workpiece. These small amounts of retained austenite should be completely transformed during two or three temperings after quenching. By the way, it is pointed out that the martensitic structure obtained after the quenching of H13 steel is lath M + a small amount of flaky M + a small amount of residual A. Domestic scholars have also done some work on the fine alloy carbides precipitated on the slab-like M after tempering.

WhatsApp: +86-769-23190193

Tel: +86-769-23190193

Fax: +86-769-88705839

Email: Jack@otaisteel.com

The M35 Steel is known for its balanced combination of abrasion resistance, toughness, and very good hot hardness.Otai is an expert on it.

M35 steel belongs to high-speed steel, which is one of hot-selling product of our company, The M35 Steel is known for its balanced combination of abrasion resistance, toughness, and very good hot hardness .not only in china, but also worldwide,m35 is very popular because it has superior qualities and very good hot hardness .otai special steel company has 20 years’ experience in high-speed steel, especially in the m35 steel.

We can supply the round, sheet, and plate form of m35 steel, we can saw the product as your requirement, if you want, we can send the samples to you, some people may be wondering the standard of the m35 import from china is different from the native, however, we can provide the product obey to the international standard .moreover, the fact proved the truth, we sell the steel to the worldwide every year.

Chemical composition

Maybe some people can’t tell the difference between the m35 and the m2 steel, the m35 has better hot hardness, one of our customers comes from the USA bought the m35 from our company, mainly used in the machine work, cutting the plastic product. The customer was satisfied with m35 steel and promised he will order again if he has the demand.

Otai Steel supplies a wide range of carbon, alloy, and stainless steel products, including high-speed tool steel, cold works tool steel, hot works tools steel, plastic mold steel, engineering steel and machine structural steel, etc. Otai Steel is one comprehensive special steel factory, stockist and exporter. Due to satisfactory reliable quality and professional service, Otai expands our market worldwide, such as UAE, Canada, Brazil, Colombia, Chile, Spain, Turkey, Algeria, Vietnam, Malaysia and so on. Welcome to connect with me.

Mr Jack Tan

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: jack@otaisteel.com

In October of this year, My Chinese customer Mr J. visited one north Asia country,he visited our old friends, and also discussed our business in north Asia.

OTAI Steel and had steel distributor in Moscow

In October of this year, My Chinese customer Mr J. visited one north Asia country,he visited our old friends, and also discussed our business in north Asia. Mr. J is an old friend of OTAI Steel and had steel distributor in Moscow. Mr. J’s company has regularly purchased tool steel Cr12MoV from us in recent years. From this visit, we learned that his company also purchased 42CrMo4 steel, but from Europe. Regarding 42CrMo4 steel, we did not discuss too much in that meeting because the quality issues were mentioned.

After returning home, I provided a formal quotation to Mr. J. He found the price is attractive but still no further action. Then I shared the SGS report and on-site inspection photos. That night, I received his email. He tell me according to the report, the material we sent to the Saudi Arabia project is not Q + T, the tensile strength must be min 1000 MPA, and the two thermal data are lower than 1000 MPA. Mr. J is very professional in this area. He previously worked as an engineer at. I am not an engineer and cannot explain at this moment, but I believe there is no problem with our 42CrMo4 steel.

If you interested to know more 42CrMo4,please click the link or see as below:

 equivalent material

• ♦JAPAN♦ : JIS SCM440 alloy steel
• ♦GERMANY♦ : DIN WN-r 1.7255 / 42CrMo4 steel alloy
• ♦CHINA♦ :  GB 42CrMo steel
• ♦BRITISH♦ : BS 708M40
• alloy steel Chemical composition
  

  ASTM A29/29M	C	Si	Mn	Cr	Mo	P	S
  4140	0.38～0.43	0.15～0.35	0.75～1.00	0.80～1.10	0.15～0.25	≤0.035	≤0.040
  DIN WN-r	C	Si	Mn	Cr	Mo	P	S
  1.7225	0.38～0.45	≤0.40	0.60～0.90	0.90～1.20	0.15～0.30	≤0.035	≤0.035
  GB/T	C	Si	Mn	Cr	Mo	P	S
  42CrMo	0.38～0.45	0.17～0.37	0.50～0.80	0.90～1.20	0.15～0.25	≤0.030	≤0.030
  BS	C	Si	Mn	Cr	Mo	P	S
  708M40	0.36～0.44	0.10～0.35	0.70～1.00	0.90～1.20	0.15～0.25	≤0.035	≤0.035
  JIS	C	Si	Mn	Cr	Mo	P	S
  SCM440	0.38～0.43	0.15～0.35	0.60～0.85	0.90～1.20	0.15～0.30	≤0.030	≤0.030

Ms Sharon Wan

Mobile/WhatsApp: 0086-13580960968

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Sharon@otaisteel.com

52100 Round Bar Bearing steel use . AISI 52100 alloy steel is known as a high carbon, chromium containing low alloy steel. The following datasheet gives an overview of AISI 52100 alloy steel.

52100 Round Bar Bearing steel use is one kind of special steel with features of high wear resistance and rolling fatigue strength. High-carbon chromium bearing steel, engineering steel and some types of stainless steel and heat resistant steel are used as materials of bearings and for other purposes.

52100 Round Bar Bearing steel use . AISI 52100 alloy steel is known as a high carbon, chromium containing low alloy steel. It is similar to Chinease standard GCr15 steel , it is one of the most commonly used Chinese bearing steels, it’s a high carbon chromium bearing steel with high hardenability, high & uniform hardness after heat treatment, high contact fatigue strength, good dimensional stability and corrosion resistance. The cold deformation plasticity is medium, the machinability is general, the weldability is poor, and it is sensitive to the formation of white spots, and there is a first type of temper brittleness.

52100 Round Bar Bearing steel use . AISI 52100 alloy steel is known as a high carbon, chromium containing low alloy steel. It is used to manufacture various bearing sleeves with wall thickness ≤12mm and outer diameter ≤250mm, steel balls with diameters of 25.4-50.8mm; also used for other rolling elements with wide range of sizes, such as tapered rollers, cylindrical rollers, spherical rollers, needle rollers, etc.; also used in the manufacture of molds, precision gauges and other mechanical parts that require high wear resistance, high elastic limit and high contact fatigue strength.

Otai Special Steel is one of reliable and serious special steel supplier of 52100 bearing steel materials. We stock and export such bearing steels worldwide. In the end of each month, we may have some 52100 bearing steel materials for sale or in discount. You are free to request a 52100 bearing steel price anytime.

Ms Monica Yu

Mobile/WhatsApp: 0086-13711903397

Tel: 0086-769-23190193

Fax: 0086-769-88705839

Email: Monica@otaisteel.com