Khaitan Steel Forgings
Khaitan Steel Forgings
Amraiwadi, Ahmedabad, Gujarat
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Hot Work Tool Steel Bars

Our range of products include hot work tool steel round bar, h11 hot work tool steel square bar and h13 hot work tool steel square bar.

Hot Work Tool Steel Round Bar

Hot Work Tool Steel Round Bar
  • Hot Work Tool Steel Round Bar
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Approx. Price: Rs 60 / KgGet Latest Price

Product Details:

Usage/ApplicationIndustrial
Single Piece Length3-6 meter
Surface FinishingGalvanized
MaterialSteel
Thickness2-3 inch
ShapeRound

We are offering Hot Work Tool Steel Round Bar to our clients.
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H11 Hot Work Tool Steel Square Bar

H11 Hot Work Tool Steel Square Bar
  • H11 Hot Work Tool Steel Square Bar
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Approx. Price: Rs 60 / KgGet Latest Price

Product Details:

Usage/ApplicationIndustrial
Length3-6 meter
Surface FinishingGalvanized
ShapeSquare
Material GradeH11
MaterialSteel

This article will give an overview of H11 chromium hot-work steels, which have low carbon content and good toughness. These steels can be deep hardened by heat treatment and air-quenching.


Chemical Composition:
ElementMinMax
Carbon, C 0.32 0.42
Manganese, Mn -.-- 0.50
Silicon, Si 0.80 1.20
Molybdenum, Mo 1.00 1.50
Chromium,Cr 4.50 5.50
V 0.30 0.50
Co -- --


The physical properties of H11 tool steels are given in the following table.

PropertiesMetricImperial
Density 7.81 g/cm 3 0.282 lb/in 3
Melting point 1427°C 2600°F


The mechanical properties of H11 tool steels are tabulated below

PropertiesMetricImperial
Hardness, Rockwell C (air cooled from 982°C, 45 mins) 52.5 52.5
Hardness, Rockwell C (air cooled from 1010°C, 45 mins) 56 56
Hardness, Rockwell C (air cooled from 1038°C, 45 mins) 57 57
Modulus of elasticity 207 GPa 30000 ksi
Modulus of elasticity (@538°C/1000°F) 159 GPa 23000 ksi
Modulus of elasticity (@204°C/400°F) 190 GPa 27500 ksi
Charpy impact (V-notch; air cooled from 1010°C;535°C temper temperature) 13.6 J 10.0 ft-lb
Charpy impact (V-notch; air cooled from 1010°C;650°C temper temperature) 27.1 J 20.0 ft-lb
Charpy impact (V-notch; air cooled from 1010°C;370°C temper temperature) 33.9 J 25.0 ft-lb
Machinability (1% carbon steel) 75.0 - 80.0% 75.0 - 80.0%
Poisson's ratio 0.27-0.30 0.27-0.30


The following table shows the thermal properties of H11 tool steels.

PropertiesMetricImperial
Thermal expansion (@20-100ºC/68-212ºF) 11.9 x 10 -6 /ºC 6.63 µin/in°F
Thermal conductivity (@100ºC/212ºF) 42.2 W/mK 292.9 in/hr.ft².°F


Other designations that are equivalent to H11 tool steels include

AFNOR Z 38 CDV 5 AMS 6485 SAE J438
DIN 1.2343 AMS 6487 SAE J467
UNI KU AMS 6488 UNS T20811
JIS SKD6 ASTM A681 AISI 610
B.S. BH 11 FED QQ-T-570 ASTM A579
AMS 6437 SAE J437 MIL S-47262
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H13 Hot Work Tool Steel Square Bar

H13 Hot Work Tool Steel Square Bar
  • H13 Hot Work Tool Steel Square Bar
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Approx. Price: Rs 60 / KgGet Latest Price

Product Details:

Usage/ApplicationIndustrial
Length3-6 meter
Surface FinishingGalvanized
ShapeSquare
Material GradeH13
MaterialSteel

Chromium hot-work tool steels are designated as group H steels according to the AISI classification system. This series of steels start from H1 to H19. The most commonly used chromium hot-work steels are H11, H12, and H13, which can be air hardened in 150 mm thick sections. The steels are subjected to minimal distortion during hardening due to their air-hardening and balanced alloy content. The tools produced from chromium hot-work steels can be cooled using water without damage as these steels have low carbon and alloy contents.

This article will give an overview of H13 chromium hot-work steels, which contain strengthening agents such as vanadium and molybdenum. These steels are resistant to softening at elevated temperatures due to the presence of chromium content.

 

Other designations that are equivalent to H13 tool steels include:

  • AFNOR Z 40 COV 5
  • DIN 1.2344
  • UNI KU
  • JIS SKD61
  • SS 2242
  • B.S. BH 13
  • ASTM A681
  • FED QQ-T-570
  • SAE J437
  • SAE J438
  • SAE J467
  • UNS T20813
  • AMS 6408

Heat Treatment:

H13 tool steels are preheated to 816°C (1500°F). Then the steels are directly heated by increasing the temperature to 1010°C (1850°F) followed by holding for 15 to 40 mins. The steels are then air-quenched.
Forging

H13 tool steels are forged at 1079°C (1975°F). For this type of steels, forging below 898°C (1650°F) is not preferable.


Annealing:

H13 tool steels are annealed at 871°C (1600°F) and slowly cooled at 4°C (40°F) in the furnace.

Chemical Composition:
ElementMinMax
Carbon, C 0.32 0.42
Manganese, Mn 1.10 0.50
Silicon, Si 0.80 1.20
Molybdenum, Mo 1.00 1.50
Chromium,Cr 4.50 5.50
W -- --
Vanadium, V 0.80 1.20
Co -- --


The physical properties of H13 tool steels are given in the following table

PropertiesMetricImperial
Density (@20°C/68°F) 7.80 g/cm 3 0.282 lb/in 3
Melting point 1427°C 2600°F


The mechanical properties of H13 tool steels are tabulated below.

PropertiesMetricImperial
Tensile strength, ultimate (@20°C/68°F, varies with heat treatment) 1200 - 1590 MPa 174000 - 231000 psi
Tensile strength, yield (@20°C/68°F, varies with heat treatment) 1000 - 1380 MPa 145000 - 200000 psi
Reduction of area (@20°C/68°F) 0.5 0.5
Modulus of elasticity (@20°C/68°F) 215 GPa 31200 ksi
Poisson's ratio 0.27-0.30 0.27-0.30

Thermal Properties
PropertiesConditions
T (ºC) Treatment
Thermal expansion 10.4 x 10 -6 /ºC 20-100 -
Thermal conductivity 28.6 W/mK 215 -
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Saket Khaitan (Partner)
Ajod Dairy Road, Opposite Gravity House, Near Keval Kanta Gujarat Bottling, Rakhial
Amraiwadi, Ahmedabad- 380023, Gujarat, India



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