How to Buy Hot Work Tool Steel?

When we talk about Hot Work Tool Steel we are referring to a type of steel that is strong enough to withstand high conditions of abrasion, thermal and pressure in production units that perform processes.

For instance, the forming, shearing and pounding of metals at 480-760°C (900 to 1400°F) high temperatures. The wear resistance of these steels reaches up to 540°C. In this guide, you will find everything you need to know about Hot work tool steel.

Tools made of hot-work tool steels are subject not only to constantly high temperatures but also to fluctuating thermal loads occurring when the surfaces of a tool become in contact with processing materials.

In this guide, we are going to explain everything you wish to know about hot work tool steel and as well guide you on how and where to get the best quality hot work tool steel from the biggest manufacturer in China.

What is Hot Work Tool Steel?

The first paragraph has already explained what hot work tool steel is all about, in other words, hot work tool steels allow the hot formation, at high temperatures of iron and non-ferrous metal workpieces as well as alloy derivatives.

They are used for processes like the casting of pressures, extrusion and drop-forge as well as for the manufacture of tubes and glass.

What are the composition properties of Hot work tool steel?

The hot work tool steels are known as group H steel with 0.35% to 0.45% carbon, 6% to 25% chromium, molybdenum, and tungsten as other components of the alloys. Tungsten is mainly used in heat forming tool steels because of its high-temperature strength.

The nominal composition listed in the AISI H series is shown in the table below.

AISI	UNS	Wt. %
		C	Cr	V	W	Mo	Co
Cr-steels
H10	T20810	0.4	3.25	0.4	–	2.5	–
H11	T20811	0.35	5	0.4	–	1.5	–
H12	T20812	0.35	5	0.4	1.5	1.5	–
H13	T20813	0.35	5	1	–	1.5	–
H14	T20814	0.4	5	–	5	–	–
H19	T20819	0.4	4.25	2	4.25	–	4.25
W-steels
H21	T20821	0.35	3.5	–	9	–	–
H22	T20822	0.35	2	–	11	–	–
H23	T20823	0.3	12	–	12	–	–
H24	T20824	0.45	3	–	15	–	–
H25	T20825	0.25	4	–	15	–	–
H26	T20826	0.5	4	1	18	–	–
Mo-steels
H42	T20842	0.6	4	2	6	5	–

Chromium Hot Work Tool Steels

This group of steel products H10 to H19 contains chromium, with tungsten, molybdenum, vanadium and cobalt additions in some cases.

The carbon of this group is considered to be rather low, about 0.35-0.40 percent, thus promoting toughness at a normal working strength between 400 and 600 HV, along with the relatively low total alloy content.

The large chromium in these units, combined with low carbon, guarantees a depth of hardening and therefore the air can be hardened in parts of up to 30 cm to fully work hard.

The higher tungsten and molybdenum levels of steels H10 and H14 increase the hardness of the red and heat, but reduce toughness possibly a bit.

Applications

The following are the application of the chromium hot-work steels:

• Forging dies, mandrels, hot shears, punching blades, and for extrusion of aluminum and magnesium
• Hot-work and structural applications
• Highly stressed structural parts used in aerospace technology
• Die casting, forging, piercing, heading, extrusion, trimming purposes.

Molybdenum Hot Work Tool Steels

Molybdenum, chromium and vanadium, along with tungsten and different percentages of Carbon are the main alloying elements in this group.

Like high-speed steels the grades of molybdenum in hot working steels have nearly the same characteristics and use as tungsten. Compared to the former group, the main benefit of these steels is excellent resistance to heat

More care is needed in thermal treatment in order to prevent decarburization along with all high molybdenum steels.

Applications

The following are the application of the hot molybdenum steels

• The purpose to cast, forge, pierce, heading, extrusion and trim.
• Hot-shear and punching blades.

Tungsten Hot Work Tool Steels

Carbon, tungsten, chromium and sometimes vanadium are the primary alloying elements of these steels.

Compared with straight chromium steels, the high alloy content increases resistance to high temperatures softening, but the steels in this category are volatile. The normal toughness of work is between 450 and 600HV.

The large content of tungsten makes the group in contrast to the steels in the hot work chromium unit unsuitable for water cooling.

If we look at this group of steels, the composition of the steels resembles high speed steels, and Type H26 is in fact a high speed steel low carbon version of T1.

Applications

The following are the application of the Tungsten hot work steels:

• Manufacturing mandrels and extrusion dies for high temperature applications, such as extrusion of brass, nickel alloys, and steel
• Hot-forging dies of rugged design

Which hot work tool Steel Manufacturer Should You Trust?

Getting the right hot work tools steel from the right manufacturer is very important because the quality differs from one manufacturer to the other. However, you are just at the right place at the right time.

Waldun steel company is the best steel manufacturing company you can trust they manufacture different varieties of steels of all types

About Waldun steel manufacturing company

To know more about the company, Waldun steel is the biggest and reliable steel manufacturing company in China, whether you are looking for hot work tool steels, AISI 4140 steel or AISI 1018 steel you are fully covered.

Our customers’ satisfaction is our top priority and to keep our words, we offer the best quality steels at competitive prices. A trial will convince you.

Are you ready to buy or enquire about hot work tool steel?

It’s time to find out more about the price of hot work tool steel or any other still you might be needing. Call Waldun steel customer care phone number or email us for a free rate and price quote.