Similar Grades: DIN1.2343, SKD6
Shape: Flat, Round bar, Sheet.
Size Range: Square/Round Bar: 12~420mm , Flat:10~155 x 50~ 800mm
Steelmaking Process: EF, EF/EAF+LF+VD, EF/EAF+ESR
Delivery condition: Annealed , Quenched+Tempered
Surface Condition: Grinded\Peeled (Centreless Turned)\Polished\Ground
Features:1:Competitive price
2 Immediate delivery
3.Premium quality
4.Reliable service
Chemical composition :
| C |
Mn |
P |
S |
Si |
Cr |
V |
Mo |
| 0.33-0.43 |
0.20-0.60 |
0.03max |
0.03max |
0.80-1.25 |
4.75-5.50 |
0.30-0.60 |
1.10-1.60 |
H11 tool steel Materials and Manufacture:ELECTRIC ARC AND VACUUMDEGASSING
H11 tool steel Hardness requirement:229 HB(MAX)
In accordance with the latest issue of Test Methods and Denitions A370
H11 tool steel Macrostructure:
In accordance with the latest issue of PracticeA561, free of excessive porosity, segregation, slag, dirt or other nonmetallic inclusions ,pipe, checks, cracks, and other injurious defects.
H11 tool steel Decarburization:
In accordance with the latest issue of Guide E3
Free of scale and decarburization.
H11 tool steel Permissible Variations for Dimensions:
| Dimension and shape tolerance |
| Thickness |
Width |
Thickness Tolerance |
Width Tolerance |
| 8-90 |
30-610 |
+1.0/-0.0 |
+5.0/-0.0 |
According to different shape with the ASTM -A681
H11tool steel Ultrasonic Quality
Material shall be ultrasonic ally tested at appropriate stages of the manufacture to ensure the quality, when and as agreed upon between seller and purchaser.
H11 tool steel Cleanliness: with the latest issue of Test Methods E45. The permissible limits shall be agreed upon between seller and purchaser.
Other informations:
| Specimens after quenching and tempering hardness should meet the following requirements |
| Type |
Hardness HRC(Min) |
Temperature(ºC) |
hardening agent |
| quenching |
tempering |
| H11 |
50 |
1020 |
550 |
Oil |
| According to ASTM E112, austenite grain size not less than 5, after heat treatment target number is expected to more than eight. |
| non-metallic inclusion |
| according to ASTM E45,Method 1 |
| Inclusion series |
Inclusion series |
| |
A |
B |
C |
D |
| Th |
2 |
2 |
2 |
2 |
| Weight |
1.5 |
1.5 |
1.5 |
1.5 |
Machinability:Machinability is reasonably good, approximately 75% that of the W group water hardening low alloy tool steels.
H11 provides good toughness with high strength even at elevated temperature.This alloy is one of the Hot Work, Chromium type tool steels. It is relatively low in carbon content and has good toughness and deep hardens by air quench from heat treatment.
Applications:H11 is often used for highly stressed structural parts such as aircraft landing gear. It resists softening at temperatures up to 1000 F while retaining good ductility and toughness even at strength levels on the order of 275 ksi.
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