OTAI SPECIAL STEEL is 1. hot work tool steel stockholders and suppliers from China. more 16 years experience in steel round bar, flat bar and plate supply.

You can find more information on our web, so please take a look.

DIN 1. steel is a hot work tool steel, the US equivalent material is H11 steel, which has excellent machinability and polishability, good high toughness and plasticity, high wear resistance at high and low temperatures and overall hardening performance.

The application of steel 1. ESU (X37CrMoV5-1) is die casting molds for light metal processing, cylinders and pistons on cold chamber machines, metal extrusion tools, etc.

1. hot work tool steel properties as below:

1. H11 Hot Work Steels

1 1. Introduction:

1. 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 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 H11 chromium hot work steels, which have low carbon content and good toughness. These hot work steels can be deep hardened by heat treatment and air-quenching.

We can provide more services:

1&#;Hardening and tempering
2&#;Vacuum heat treatment
3&#;Polished bright surface
4&#;Milling bright surface
5&#;CNC machine
6&#;Deep drilling
7&#;Cut into small pieces
8&#;Make it closer to the mold
Welcome to inquiry price from drawing

Cutting:

Precision cutting to standard dimensions

Custom cutting according to client specifications

 

Surface Grinding/Polishing:

Thickness tolerance: -0 to +0.1mm

Flatness: 0.01/100mm

Goto Jiebao to know more.

Surface roughness: Ra &#;1.6 or Rz &#;6.3

2 1. Applications:

1. H11 Hot Work Steels is often used for highly stressed structural parts such as aircraft landing gear. It resists softening at temperatures up to F while retaining good ductility and toughness even at strength levels on the order of 275 ksi.

3 Quality Standard:

ASTM A681 Standard Specification for Tool Steel

4 All Grades Comparison:

ASTM AFNOR DIN UNI JIS B.S. H11 Z 38 CDV 5 1. T SKD6 BH 11

5 1. Chemical Composition(%):

C Si Mn P S Cr V Mo 0.33-0.43 0.80-1.25 0.20-0.60 0.030 max 0.030 max 4.75-5.50 0.30-0.60 1.10-1.60

6 HEAT TREATMENT:

FORGING: H11 hot work steels are forged at °C (°F). For this type of steels, forging below 899°C (°F) is not preferable.

ANNEALING: H11 hot work steels are annealed at 871°C (°F) and slowly cooled at 4°C (40°F) in the furnace.

HARDENING: Preheat to F and then heat to F and hold for 15 to 40 minutes. Air cool (air quench).

TEMPERING: Tempering is carried out on H11 tool steels at temperature ranging from 538 to 649°C ( to °F) to obtain Rockwell C hardness of 54 to 38. Double tempering can also be performed in these steels every one hour at the preferred tempering temperature.

7 Mechanical Properties:

Properties Metric Imperial Hardness, Rockwell C (air cooled from 982°C, 45 mins) 52.5 52.5 Hardness, Rockwell C (air cooled from °C, 45 mins) 56 56 Hardness, Rockwell C (air cooled from °C, 45 mins) 57 57 Modulus of elasticity 207 GPa ksi Modulus of elasticity (@538°C/°F) 159 GPa ksi Modulus of elasticity (@204°C/400°F) 190 GPa ksi Charpy impact (V-notch; air cooled from °C;535°C temper temperature) 13.6 J 10.0 ft-lb Charpy impact (V-notch; air cooled from °C;650°C temper temperature) 27.1 J 20.0 ft-lb Charpy impact (V-notch; air cooled from °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

8 Mill&#;s test certificate:

EN /3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.