AISI D2 1.2379 SKD11 Round Steel Bar Round Bar Round Bar Rod Round Steel Bar Stock
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Product Name
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Steel Round Bar
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Diameter
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5mm-600mm
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Length
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Stock steel bar length 6m, we can cut to special sizes depend on your demands
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Surface treatment
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normal surface
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Technique
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Hot rolled, Cold drawn, Forged
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Delivery time
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Stock size: 2-5 days, new sizes: 10-20 days.
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SKD11 is the tool steel, die steel, and high carbon steel possessing high hardness, strength and wear resistance. Its surface is grinded precisely. It is often used for the stamping dies, plastic molds, and so on. High-Carbon High-Chromium alloy steel,SKD11 JIS Standard SKD11 steel is a semi-stainless high-speed tool steel capable of being treated to 64 HRC by Japanese knifemakers. It is very similar to D2 steel of AISI.
Supply Form & Size & Tolerance
| Supply Form | Size(mm) | Process | Tolerance | |
Round |
Φ6-Φ100 | Cold Drawn | Bright/Black | Best H11 |
Φ16-Φ350 |
Hot Rolled |
Black | -0/+1mm | |
| Peeled/ground | Best H11 | |||
Φ90-Φ1000 |
Hot Forged |
Black | -0/+5mm | |
| Rough Turned | -0/+3mm | |||
Flat/Square/Block |
Thickness :120-800 | Hot Forged |
Black | -0/+8mm |
| Width:120-1500 | Rough Machined | -0/+3mm | ||
Remark:Tolerance can be customized as per requests
Chemical Composition
| Standard | Grade | C | Si | Mn | P | S | Cr | V | Mo |
| ASTM A681 | D2 | 1.4-1.6 | 0.1-0.6 | 0.1-0.6 | 0.03 | 0.03 | 11.0-13.0 | 0.5-1.1 | 0.7-1.2 |
| DIN ISO 4957 | 1.2379 | 1.45-1.6 | 0.15-0.6 | 0.2-0.6 | 0.03 | 0.03 | 11.0-13.0 | 0.7-1.0 | 0.7-1.0 |
| JIS G4404 | SKD11 | 1.4-1.6 | 0.4 | 0.6 | 0.03 | 0.03 | 11.0-13.0 | 0.2-0.5 | 0.8-1.2 |
Physical Property
| Temperature | 20°C | 200°C | 400°C | |
| Melting point | 1421°C | |||
| Density ,kg/m3 | 7700 | 7650 | 7600 | |
| Modulus of elasticity,Mpa | 210000 | 200000 | 180000 | |
Coefficient of thermal expansion |
low temperature tempering per °C from 20°C | – | 12.3 x 10^–6 | – |
| high temperature tempering per °C from 20°C | – | 11.2 x 10^–6 | 12 x 10^–6 | |
| Thermal conductivity,W/m °C | 20 | 21 | 23 | |
| Specific heat,J/kg °C | 460 | – | – | |
Mechanical Property
| Metric | Imperial | |
| Hardness, Knoop (converted from Rockwell C hardness) | 769 | 769 |
| Hardness, Rockwell C | 62 | 62 |
| Hardness, Vickers | 748 | 748 |
| Izod impact unnotched | 77.0 J | 56.8 ft-lb |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elastic modulus | 190-210 GPa | 27557-30457 ksi |
Copressive Strength
| Hardness | Compressive yield strength, Rc 0.2 | |
| HRC | Mpa | ksi |
| 62 | 2200 | 319 |
| 60 | 2150 | 312 |
| 55 | 1900 | 276 |
| 50 | 1650 | 239 |
FAQ
Q Can I have a sample for testing?
A: Free simples, you just need pay the freight.
Q. Do you have products in stock?
A: Because we only do wholesale, usually do not have stock, we provide fast shipping for most products, If there is any stock, we will inform you with details.
Q Do you have inspection procedures for the products?
A:100% self-inspection before packing
Q Can I have a visit to your factory before the order?
A: Sure,welcome to visit our factory.
