Similar Grades:
UNS T30109
Shape:
Round, Flat, Square.
Size Range:
| |
Diameter(mm) |
Thickness (mm) |
Width (mm) |
Length(mm) |
| Round |
20-480 |
- |
- |
2000-5800 |
| Square |
20-480 |
- |
- |
2000-5800 |
| flat |
- |
20-50 |
80-600 |
2000-5800 |
Steel-making Condition:
EF, EF/EAF+LF+VD, EF/EAF+ESR
Delivery Condition:
Annealed , Quenched + Tempered
Surface Condition:
Black, Grinded, Peeled, Rough turned, Polished
Features:
1.Competitive price
2.Immediate delivery
3.Premium quality
4.Reliable service
5.MOQ: 1 Ton
| Packing details |
In seaworthy packing, as your requirement. |
| Delivery details |
within 30-50 days |
Chemical Composition(%)
| C |
Mn |
P |
S |
Si |
Cr |
V |
Mo |
Ni |
| 0.45-0.55 |
0.20-0.50 |
<=0.030 |
<=0.030 |
0.95-1.15 |
4.75-5.50 |
0.80-1.40 |
1.30-1.80 |
1.25-1.75 |
Mechanical Properties
Properties |
Metric |
Imperial |
| Hardness, Knoop (converted from Rockwell C hardness) |
662 |
662 |
| Hardness, Rockwell C (tempered at 500°C) |
57 |
57 |
| Hardness, vickers |
641 |
641 |
| Tensile strength, ultimate (tempered at 500°C) |
2200 MPa |
319000 psi |
| Tensile strength, yield (tempered at 500°C) |
1780 MPa |
258000 psi |
| Elongation at break (in 50 mm; tempered at 500°C) |
5.00% |
5.00% |
| Izod impact (smooth bar; tempered at 500°C) |
18.0 J |
13.3 ft-lb |
| Poisson's ratio |
0.27-0.30 |
0.27-0.30 |
| Elastic modulus |
190-210 GPa |
27557-30457 ksi |
Introduction:
Group A steels are A2, A3, A4, A6, A7, A8, A9, and A10 steels. They are also called air-hardening, medium alloy, cold work steels. Carbon content of group A steels range from 0.5 to 2%. These steels are provided with air hardening characteristics that allow minimum cracking and distortion on quenching.
Sufficient amounts of manganese, molybdenum and chromium present in group A steels provide full hardness in sections comprising thickness of at least 100 mm (4 in.) in diameter when air cooled.
The data below will provide an overview of A9 air-hardening, medium-alloy, cold-work tool steels.
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