Delivery Time:3-5 days
Certification:CE,FCC,MSDS
DIN 1.2080 Steel Round Bar , Cold Work Tool Steel for Cold Work Mold and Tools
|
Steel Grade: |
1.2080 |
Application: |
Tool Steel, Mold Steel |
|
Shape: |
Round bar |
Standard: |
AISI, DIN, JIS, GB |
|
Dimension: |
Φ10 – 600 mm |
Surface: |
Black, Peeled, Turned, Grinded |
|
Technique: |
Hot rolled, Forged |
Ultrasonic Test: |
100% UT Passed |
Description:
◆ Equivalence
|
AISI / SAE |
DIN / W.Nr |
JIS |
GB |
|
D3 |
1.2080 |
SKD1 |
Cr12 |
◆ Chemical Composition (%)
|
C |
Si |
Mn |
P |
S |
Cr |
|
1.90 2.20 |
0.10 0.60 |
0.20 0.60 |
≤ 0.030 |
≤ 0.030 |
11.00 13.00 |
◆ Dimensions
|
Hot Rolled |
Forged |
|
|
Diameter (mm) |
10-130 |
60-600 |
|
Length (mm) |
2000-5800 |
2000-5800 |
|
** We suggest ESR for the size over Φ400mm. |
◆ Delivery Condition
EAF+(ESR) or EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, Hardness≤250HB,
Black surface or Machined surface (Peeled, Turned, Grinded), UT 100% Passed
◆ Characteristics
1. A kind of cold work tool steel widely used, belonging to Ledeburitic steel with high
carbon and high chromium.
2. Quite good hardenability and wearing resistance, and small distortion after quenching.
3. Not good impact toughness, be liable to fracture and form inhomogeneous eutectic
carbides.
◆ Applications
1. Common used for making cold work molds of excellent wearing resistance with
light shock loads, such as punch heads, cold cutting scissors, drill bushes, gauges,
wire drawing sheets, drawing dies, thread rolling dies etc.
2. Making cutting tools which is used for machining material of low hardness.
3. Used as plastic mold with good wearing resistance and long service life.
◆ Forging Technique
|
Heat Temperature |
Start Forging Temperature |
Finish Forging Temperature |
Cooling Method |
|
1120 - 1140 °C |
1080 - 1100 °C |
880 - 920 °C |
Slow Cooling |
◆ Heat Treatment
|
Annealing |
800 to 850°C
Slow controlled cooling in furnace at a rate of 10 to 20°C/hr down to approx. 600°C,
further cooling in air.
Hardness after annealing: max. 250 HB.
|
Stress relieving |
Approx. 650°C
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 |
940 to 970°C
Oil, salt bath (220 to 250°C or 500 to 550°C), compressed or still air if thickness does
not exceed 25 mm and if hardening temperature is on the upper side of the range.
Holding time after temperature equalization: 15 to 30 minutes.
Obtainable hardness: 63 - 65 HRC
|
Tempering |
Slow heating to tempering temperature immediately after hardening/time in furnace
1 hour for each 20 mm of workpiece thickness but at least 2 hours/cooling
