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Hot Work Steel

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Hot Work Tool Steel

Hot Work Tool Steels allow the heat-forming of work-particles made up from iron and nonferrous metals along with hot temperatures alloy formulations. These are used in techniques such as forming pressure die, extrusion and drop casting, and also in the manufacture of tubes and glasses. Hot Work Steels are often used in applications which require toughness, wear strength and durability at high temperatures.

Hot working tool steel is used to make iron and nonferrous metals as well as hot forming of the work-piece at high temperature of the alloy derivative. They are also used in the manufacturing of pressure die casting, extrusion and forging, as well as in the process of pipe and glass manufacturing. By heat as tool steel tool not only by the use of continuous high temperature, but also occurs in the heat load fluctuation in the tool is in contact with the materials to be processed.

In ASTM Steel Standard, Hot Work Tool Steel include the “H” in Hot Work Tool Steel Series. Like H10, H11, H12, H13, H14, H19, H21, H22, H23, H24, H25, H26, H42 Steels.

As the difference in Chemical Composition, it can be classified as:

  • Chromium Hot Work Tool Steels
  • Steel Grade Number From H10 to H19. their carbon composition is about 0.34-0.40, Normal Working Hardness is 400~600 HV. Normal Working Temperature is below 540°C。
  • Tungsten Hot Work Tool Steels
  • Steel Grade from H21 to H26 with a normal working hardness of 450-600HV.

Product Specification

  MATERIAL   CHEMISTRY Application
AISI/ASTM EN DIN JIS C S P SI Mn Cr V W Mo  
H11 X38CrMoV5-1 1.2343   0.33 - 0.41 ≤0.03 ≤0.03 0.80 - 1.20 0.20 - 0.50 4.80 - 5.50 1.10 - 1.50     Dies for pressure casting of light alloys, dies for presses for hot forming steel, brass, aluminium and its alloys, hot work shear blades.
H11M       0.47-0.52 ≤0.03 ≤0.03 0.80 -1.20 0.20 - 0.50 4.80 - 5.50 1.10 - 1.50     Pressure Casting dies, Extrusions tools, Forging, hot shear blades, Screws and barrels
H13 X40CrMoV5-1 1.2344 SKD61 0.35 - 0.42 ≤0.03 ≤0.03 0.80 - 1.20 0.25 - 0.50 4.80 - 5.50 0.85 - 1.15   1.20 - 1.50 Dies for pressure casting of light alloys, dies for aluminium extrusion dies for hot forming of steels, extractors.
H13M       0.47 - 0.52 ≤0.03 ≤0.03 0.80 - 1.20 0.25 - 0.50 4.80 - 5.50 0.85 - 1.15   1.20 - 1.50 Dies for pressure casting of light alloys, dies for aluminium extrusion dies for hot forming of steels, extractors.
TGE-13       0.38 ≤0.002 ≤0.015 0.9 0.35 5 0.95   1.35 metal pressure die casting, hot extrusion moulds, plastic moulds,
TGGP-13       0.39 ≤0.001 ≤0.009 1.1 0.4 5.3 1   1.45 Alloy die casting mould, hot extrusion moulds, precise hot forging moulds,
TGE-23       0.37 ≤0.001 ≤0.015 0.3 0.4 5 0.45   2.2 Pressure die casting, extrursion molds, forged molds and inserts
TG-1.2367       0.37 ≤0.001 ≤0.015 0.4 0.45 5 0.55   2.8 Pressure die casting, extrursion molds, moulded trimming dies, compression moulding inserts, hot shearing blades

Sr. No. Products Application
1. H-11 (1.2343)
2. H-13 (1.2344) EXTRUSION DIES, GRIPPER DIES, RAMS DROP FORGING DIES, PRESSURE CASTING MOULDS FOR LIGHT ALLOYS, METAL TRACK PRESSURE TOOLS, HIGH STRESSED INTERNAL BOXES, LITTLE TUBE PRESSING MANDRELS FOR WATER-COOLING, DIE CASTING TOOLS, PUNCHES
3. H-21 (1.2581) PRESSURE CASTING MOULDS, CORES, DIES FORNON FERROUS PRODUCTS, TOOLS FOR SCREW PRODUCTS, HOT EXTRUSION DIES, LOWER DIES FOR VALVE CONE PRODUCTS FOR PRESSING DIES
4. Die Block (1.2714)

Chemical composition:

MATERIAL NAME CARBON C% SILICON Si% MANGANESE Mn% CHROMIUM Cr% MOLYBDENIUM Mo% TUNGSTEN W% VANADIUM V% PHOSPHORUS P% SULPHUR S% NICKEL Ni%
H-11 0.30-0.42 0.8O-1.20 0.30-0.50 4.75-5.50 1.1-1.4 0.25-0.5 ≤ 0.035% ≤ 0.035%
H-13 0.32-0.45 0.8O-1.20 0.20-0.80 4.75-5.50 1.1-1.75 0.8-1.2 ≤ 0.035% ≤ 0.035% 0.3
H-21 0.26-0.40 0.15-0.35 0.20-0.40 3.00-3.75 8.5-10 0.3-0.6 ≤ 0.035% ≤ 0.035%
Die Blocks 0.50-0.60 0.10-0.40 0.65-0.95 1.0O-1.20 0.45-0.55 0.07-0.12 ≤ 0.035% ≤ 0.035% 1.5

H11

Equivalent grades:

STANDARD CHINA AUSTRIA BRAZIL SLOVANIA CHEZ ITALY
DIN AISI EST BOHLER VILLARES RAVNE DEW POLDI LUCCHINI VERONA SANYO
1.2343 H-11 YTR50 W300 TENAX 300 M01-EFS 1.2343 TLH ESKYLOS2343 1.2343 QDA61

H11 ROUND BAR
 H11 FLAT BAR
 H11 SQUARE BAR
H11 FORGED BARS
 H11 ROLLED BARS
H11 PEELED or H11 BRIGHT

Chemical composition:

CARBON C% SILICON Si% MANGANESE Mn% CHROMIUM Cr% MOLYBDENIUM Mo% VANADIUM V% PHOSPHORUS P% SULPHUR S%
H-11 0.30-0.42 0.8O-1.20 0.30-0.50 4.75-5.50 1.1-1.4 0.25-0.5 ≤ 0.035% ≤ 0.035%

Application:

H11 is often used for highly stressed structural parts such as aircraft landing gear. It resists softening at temperatures up to 1000 F while retaining good ductility and toughness.

Heat Treatment:

Annealing 750 - 800 °C
Hardness after annealing Max. 205 HB
Stress relieving 600 - 650 °C
Hot forming 1100 - 900 °C
Hardening 1000 - 1040 °C
Quenching media Oil, Salt bath,Air
Hardness after quenching 50 - 56 HRC
Hardness after tempering :
400 °C 500 °C 550 °C 600 °C
HRC 53 54 52 48


H13

Equivalent grades:

STANDARD CHINA AUSTRIA BRAZIL SLOVANIA SWEDEN CHEZ ITALY JAPAN S.KOREA
DIN AISI JIS EST BOHLER VILLARES RAVNE ASSAB/ UDDEHOLM DEW POLDI LUCCHINI VERONA DAIDO HITACHI NIPPON SANYO DOOSAN
1.2344 H-13 SKD 61 YTR5 W302 VH13IM M02-EFS ORVAR 1.2344 TLI ESKYLOS2344 1.2344 DHA 1 DAC KDA QD61 STD 61

H13 ROUND BAR
 H13 FLAT BAR
 H13 SQUARE BAR
H13 FORGED BARS
 H13 ROLLED BARS
H13 PEELED or H13 BRIGHT

H13 is a 5% chromium hot work tool steel designed for Application that require extreme toughness combined with good red-hardness. H13 allows an extra margin of safety in tools subject to heavy hammer blows, and those containing deep recesses or sharp corners. H13 was basically designed as a hot work steel. But it has now solved many cold work Application where extra toughness could be gained with some sacrifice of wear resistance.

Chemical composition:

CARBON C% SILICON Si% MANGANESE Mn% CHROMIUM Cr% MOLYBDENIUM Mo% VANADIUM V% SULPHUR S% PHOSPHORUS P%
H-13 0.32-0.45 0.8O-1.20 0.20-0.80 4.75-5.50 1.1-1.75 0.8-1.2 ≤ 0.035% ≤ 0.035%

Application:

Aluminum Extrusion Dies, Die Casting Dies, Heavy Duty Compression Tools, Forming Punches, Hot Forging Dies, Shear Blades, Plastic Mold Dies, and Bolt Dies.

Heat Treatment:

Annealing 750 - 800 °C
Hardness after annealing Max. 205 HB
Stress relieving 600 - 650 °C
Hot forming 1100 - 900 °C
Hardening 1000 - 1040 °C
Quenching media Oil, Salt bath, Air
Hardness after quenching 50 - 56 HRC
Hardness after tempering :
400 °C 500 °C 550 °C 600 °C
HRC 54 55 54 50


H21

H21 ROUND BAR
 H21 FLAT BAR
 H21 SQUARE BAR
H21 FORGED BARS
 H21 ROLLED BARS
H21 PEELED or H21 BRIGHT

Equivalent grades:

STANDARD CHINA AUSTRIA BRAZIL SLOVANIA SWEDEN CHEZ
DIN AISI JIS EST BOHLER VILLARES RAVNE ASSAB/ UDDEHOLM DEW POLDI NIPPON
1.2581 H-21 SKD5 YTR2 W100 VW9 UTOP2 1.2581 212 N KD5

Application:

The H21 tungsten hot-work tool steels are mainly used for hot-working dies and toolings, e.g., die casting, extrusion and hot-forming of parts.

Chemical composition:

CARBON C% SILICON Si% MANGANESE Mn% CHROMIUM Cr% TUNGSTEN W% VANADIUM V% NICKEL N% SULPHUR S% PHOSPHORUS P%
H-21 0.26-0.40 0.15-0.35 0.20-0.40 3.00-3.75 8.5-10 0.3-0.6 0.3 ≤ 0.035% ≤ 0.035%

The H21 tungsten hot-work tool steels are used for hot-working dies and tooling, e.g.: die casting, extrusion and hot-forming of parts.

Heat Treatment:

Annealing 750 - 800 °C
Hardness after annealing Max. 240 HB
Stress relieving 600 - 650 °C
Hot forming 1100 - 900 °C
Hardening 1000 - 1140 °C
Quenching media Oil, bath
Hardness after quenching 50 - 56 HRC
Hardness after tempering :
400 °C 500 °C 550 °C 600 °C
HRC 49 51 51 46


1.2714

Steel for through hardening with good heat resistance, high temperature resistance, through hardenability and toughness

Equivalent grades:

STANDARD CHINA AUSTRIA BRAZIL SLOVANIA SWEDEN CHEZ ITALY JAPAN S.KOREA
DIN AISI EST BOHLER VILLARES RAVNE ASSAB/ UDDEHOLM DEW POLDI LUCCHINI VERONA NIPPON SANYO DOOSAN
1.2714 L-6 DB-6 YTR6A W500 VMO UTOP EX2 ALVAR 1.2714 TBN \ EX1 BEYLOS2714 1.2714 KTV QT41 STF4M

1.2714 ROUND BAR
 1.2714 FLAT BAR
 1.2714 SQUARE BAR
1.2714 FORGED BARS
 1.2714 ROLLED BARS
1.2714 PEELED or 1.2714 BRIGHT

Application:

Extrusion dies, hot-forging tools, dies for processing tin, lead and zinc alloys,Forging dies of all types,tools for tube and rod extrusions, hot shear blades, hot forming tools, plastic moulds, hydro forming tools.

Chemical composition:

CARBON C% SILICON Si% MANGANESE Mn% CHROMIUM Cr% MOLYBDENUM Mo% VANADIUM V% NICKEL N% SULPHUR S% PHOSPHORUS P%
1.2714 0.50-0.60 0.10-0.40 0.60-0.90 0.8-1.20 0.35-0.55 0.05-0.15 1.5O-1.80 ≤ 0.035% ≤ 0.035%

Heat Treatment:

Annealing 650 - 700 °C
Hardness after annealing Max. 248 HB
Stress relieving Approx 650 °C
Hot forming 1100 - 850 °C
Hardening 830 - 900 °C
Quenching media Oil , Air
Hardness after quenching Oil :52 - 58 HRC
Air : 44 -50 HRC
Hardness after tempering :
400 °C 500 °C 550 °C 600 °C
HRC 50 46 43 40