Delivery Time:3-5 days
Certification:CE,FCC,MSDS
ASTM A681 AISI H10 Round Steel Bar , Hot Work Tool Steel for Hot Forging Mould
|
Steel Grade: |
H10 |
Application: |
Die Steel, Mould Steel |
|
Shape: |
Flat bar |
Standard: |
AISI, DIN, JIS, GB |
|
Dimension: |
Φ10-600 mm |
Surface: |
Black, Peeld, Turned, Grinded |
|
Technique: |
Hot rolled, Forged |
Ultrasonic Test: |
100% UT Passed |
Description:
◆ Equivalence
|
AISI / SAE |
DIN / W.Nr |
JIS |
GB |
|
H10 |
1.2365 |
SKD7 |
---- |
◆ Chemical Composition (%)
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
|
0.35 0.45 |
0.80 1.20 |
0.25 0.70 |
≤ 0.030 |
≤ 0.030 |
3.00 3.75 |
2.00 3.00 |
0.25 0.75 |
◆ Dimensions
|
Hot Rolled |
Forged |
|
|
Diameter (mm) |
10-130 |
60-600 |
|
Length (mm) |
2000-5800 |
2000-5800 |
◆ Delivery Condition
EAF+(ESR) or EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, Hardness≤235HB,
Black surface or Machined surface (Peeled, Turned, Grinded), UT 100% Passed
◆ Characteristics
Hot work tool steel featuring a fine combination of heat checking resistance, hot strength and impact strength; admits water cooling.
◆ Applications
1. Highly stressed hot work tools, mainly for the processing of heavy alloys, such as
mandrels, dies and containers for metal tube and rod extrusion; hot extrusion tools;
2. Tools for the manufacture of hollows, screws, rivets, nuts and bolts.
3. Die casting tools, forming dies, die inserts, hot shear blades.
◆ Heat Treatment
|
Annealing |
750 to 800°C (1382 to 1472°F)
Slow controlled cooling in furnace at a rate of 10 to 20°C/hr (50 to 68°F/hr) down to approx. 600°C (1112°F), further cooling in air.
Hardness after annealing: max. 235 HB.
|
Stress relieving |
600 to 650°C (1112 to 1202°F)
Slow cooling in furnace; intended to relieve stresses set up by extensive machining, or in complex shapes.
After through heating, hold in neutral atmosphere for 1 - 2 hours.
|
Hardening |
1010 to 1050°C (1850 to 1922°F)
Oil, salt bath (500 - 550°C / 932-1022°F), air
Holding time after temperature equalization: 15 to 30 minutes.
Obtainable hardness: 52 - 56 HRC
|
Tempering |
Slow heating to tempering temperature immediately after hardening / time in furnace 1 hour for each 20 mm of work piece thickness, but at least 2 hours / cooling in air. It is recommended to temper at least twice.
A third tempering cycle for the purpose of stress relieving may be advantageous.
1st tempering approx. 30°C (86°F) above maximum secondary hardness.
2nd tempering to desired working hardness.
The tempering chart shows average tempered hardness values.
3rd for stress relieving at a temperature 30 - 50°C (86 to 122°F) be low highest tempering temperature.
What we can offer?
We offer a wide range of steel products in a wide variety of dimensions and executions,
acc.to the common international specifications or customerized.
Machining and heat treatment are available.
Also, we advise you in choosing the right materials.
