H11 Tool Steel
Our H11 tool steel forgings are the ideal blank material to manufacture hot-working molds. Typical hot-working molds include plastic molds, die-casting molds, hammer forging molds, and hot extrusion molds.
- Customer drawings
- Heat treatment
- Inspection reports
Custom Materials · Heat Treatment · Machining
Built around the
drawing.
Controlled through
delivery.
Every custom forging begins with a technical review of material, geometry, heat treatment, machining allowance and inspection requirements. The production route is defined before quotation and confirmed against the project specification.
01
Produced to drawings, samples or technical specifications.
02
Forging, heat treatment, machining and inspection.
03
Material, dimensional and test reports supplied.
Forged H11 Tool Steel Applications:
The main alloy elements of H11 steel are chromium, molybdenum, and vanadium. We remelt H11 tool steel by electroslag remelting to improve the properties. Our H11 tool steel can be hardened by air.H11 tool steel forgings have high toughness, excellent resistance to thermal fatigue, and good high-temperature strength. H11 tool steel main applications span industrial mold making and aerospace fields, specifically including:
Die-casting molds
Used to manufacture die-casting molds for aluminum, magnesium, and copper alloys, such as mold cores, mold plates, and flow dividers. They can withstand high heat loads and metal erosion, and their service life is 1.5-3 times that of traditional steel.
Forging molds
Suitable for high-speed hammer forging dies, integral dies, or inserts for forging presses, especially suitable for forging ferrous metals or aluminum alloy parts such as connecting rods and crankshafts for automobile engines. They can handle complex cavities and high-impact loads.
Hot extrusion molds
Used for hot extrusion tools for materials such as copper and titanium alloys. Working temperatures can reach 800℃, demonstrating their excellent thermal stability.
Plastic molds:
Used for high-temperature resistant inserts and hot runner system components in injection molds, meeting high wear resistance requirements.
Plastic molds:
Due to their high strength at medium temperatures, they have been used to manufacture missile engine housings, aircraft landing gear, rotor blades, etc. The working temperature range is typically 400-500℃.
H11 Tool Steel Key Characteristics：
H11 tool steel is an American air-hardening hot work die steel, belonging to the chromium-molybdenum-vanadium alloy system. It is manufactured through electroslag remelting and has the following core advantages:
High hardenability and air-hardening capability:
High alloying element content, such as chromium and molybdenum, results in excellent hardenability, enabling air-cooled hardening and reducing the risk of deformation and cracking during heat treatment of complex cavity molds.
High strength
H11 steel can achieve a tensile strength of up to 2750 MPa after quenching and tempering.
High toughness:
H11 steel exhibits superior toughness compared to H13 steel, effectively withstanding high impact loads and reducing the risk of cracking.
Excellent thermal fatigue and thermal crack resistance:
Strong resistance to crack initiation and propagation under frequent thermal cycles, making it suitable for mold applications that involve repeated heating and cooling.
Good erosion resistance:
Effectively resists the erosion and corrosion of molten metals such as aluminum, magnesium, and copper, extending mold life.
Medium-temperature thermal stability
Maintains high thermal strength and oxidation resistance in environments below 600℃, and is not easily softened.
MATERIAL DATA
H11 Tool Steel Forging Technical Data
The following values provide a general reference for AISI H11 tool steel. Final chemical composition, hardness and heat-treatment requirements must follow the agreed material standard, section size, tooling application and customer specification.
H11 Steel Forgings Chemical Composition （%））
| Element | Carbon, C | Manganese, Mn | Silicon, Si | Chromium, Cr | Molybdenum, Mo | Vanadium, V | Phosphorus, P | Sulfur, S |
|---|---|---|---|---|---|---|---|---|
|
AISI H11 |
0.33–0.43 |
0.20–0.50 |
0.80–1.20 |
4.75–5.50 |
1.10–1.60 |
0.30–0.60 |
0.030 max |
0.030 max. |
Typical Hardness and Heat-Treatment Reference
| Condition | Annealed | Hardened and Tempered | Final Heat Treatment |
|---|---|---|---|
|
Typical reference |
229 HB max. |
Approximately 44–52 HRC |
According to required hardness, section size and customer specification |
Chemical composition and heat-treatment values are provided for general reference only. Final requirements must follow the agreed standard, customer drawing and approved production specification.
H11 Tool Steel Properties
H11 tool steel physical properties information table.
| Properties | Metric | Metric Imperial |
|---|---|---|
|
Density of H11 tool steel |
7810 kg/m3 |
0.282 lb/in³ |
|
Melting point |
around 1400-1425°C |
2550-2600°F |
H11 tool steel mechanical properties information table.
| Properties | Metric |
|---|---|
|
H11 tool steel tensile strength after hardening and tempering |
1800 MPa up to over 2000 MPa (260 ksi to 290 ksi) |
|
H11 tool steel yield strength after hardening and tempering |
1480 MPa to over 1650 MPa (215 ksi to 239 ksi) |
|
H11 tool steel hardness after proper heat treatment |
50-57 HRC |
|
H11 tool steel machinability |
Reasonably good machinability |
H11 tool steel thermal properties information table.
| Properties | Metric |
|---|---|
|
Thermal conductivity (@ 100°C) |
42 W/mK (24 BTU/hr·ft²·°F) at room/elevated temperatures (like 100°C) |
H11 Steel Equivalent
|
American USA |
Germany DIN,WNr |
China GB |
Japan JIS |
|---|---|---|---|
|
H11 |
X38CrMoV5-1 |
4Cr5MoSiV |
SKD6 |
CUSTOM SHAFT FORGING
H11 Tool Steel Forgings Supplier & Manufacturer
We are the leading H11 tool steel supplier and manufacturer in China, specializing in H11 tool steel forgings. Our H11 tool steel is typically manufactured via electroslag remelting. Our H11 tool steel forgings have good toughness, excellent thermal fatigue resistance, and high strength at high temperatures. Our H11 tool steel has main applications in industrial mold making and the aerospace field, specifically including die-casting molds, forging molds, hot extrusion molds, and plastic molds.
Feel free to contact us for our H11 tool steel price without any hesitation.
Records that travel
with the forging.
Inspection requirements are defined during quotation—not added as an afterthought. Available documentation is confirmed against the project specification before production.
Material certificates & heat traceability
✓
Dimensional inspection report
✓
Ultrasonic / magnetic particle report
✓
Mechanical properties report
✓
Final documentation package
✓
Have a drawing ready?
Send your drawing, material grade, dimensions, quantity and inspection requirements for manufacturing review.
MATERIALS WE FORGE
Carbon Steel Forgings
Custom carbon steel forgings for shafts, rings, discs, blocks and other heavy-duty industrial components.
Alloy Steel Forgings
High-strength alloy steel forgings for machinery, transmission systems and demanding service conditions.
Tool Steel Forgings
Custom tool steel forgings for dies, molds, industrial tooling and other high-load applications.
Stainless Steel Forgings
Corrosion-resistant forged components produced according to customer drawings and specifications.