Introduction
H-11 (1.2343) is a 5% chromium hot work tool steel. Compare to H13, H11 has less vanadium giving it higher toughness, with some reduction in wear resistance and temper resistance. H11 has excellent dimensional stability during heat treatment.
Steel Properties : High hot tensile strength and toughness. Good thermal to hot cracking. Can be water-cooled to a limited extent.
Applications : Hot-work tool steel for universal use. Pressure casting dies and metal extrusion tools for processing light metals, forging dies, moulds, screws and barrels for plastic processing, shrink rings, hot-shear blades.
Chemical Composition : (%)
| C | Si | Mn | Cr |
|---|---|---|---|
| 0.36-0.42 | 0.90-1.20 | 0.30-0.50 | 4.80-5.50 |
| Mo | Ni | V | P | S |
|---|---|---|---|---|
| 4.80-5.50 | - | 0.25-0.50 | 0.00-0.030 | 0.00-0.030 |
Grades Equivalent :
| STANDARD | BRAZIL | AUSTRIA | EN |
|---|---|---|---|
| 1.2343 | TENAX300 | W300 | X38CrMoV5-1 |
| SLOVANIA | ITALY | JIS | S.KOREA |
|---|---|---|---|
| UTOP M01-EFS | -- | -- | -- |
| TAIWAN | CZECH REP. | CHINA | AMERICA |
|---|---|---|---|
| GMH11 | TLH EFS | YTR50 | H-11 |
Production Process :
| UT Standard : | Reduction Ratio : | Delivery Status : |
| SEP 1921, (DEC.84)E/e | As 1:4 or 1:5 | In annealed condition. |
Sizes of Round Bars :
| Cold Drawn/Ground Bar | Hot Rolled Annealed Peeled Bar | Forged Anealed Turned Bar |
| Φ 2.0 - 14.4mm | Φ 14.5 - 80.0mm | Φ 81.0 - 810.0mm |
Sizes of Hot Rolled Flat Bars/Sand Blasted Machined Straight :
| Thickness | Width |
| 5mm - 410mm | 10mm - 810mm |
Heat Treatments :
Quenching temperature : 1020-1050℃
Cooling Medium : air-cooling
Tempering temperature : 550-650℃
Tempering times : 2Times, the tempering temperature in the second time should be lower than in first time
Tempering Hardness : 47-48HRC.
| Tempering°C | 500°C | 550°C | 600°C |
| HRC | HRC56 | HRC54 | HRC50 |
