Industry Sources: Professional die steel material standards, forging tooling specifications, international alloy performance databases, global hot-work steel application cases
1.Executive Summary
This practical hot-work tool steel selection guide is tailored for overseas industrial buyers in North America, Europe, Southeast Asia, India, the Middle East and Latin America. It provides a standardized, application-driven material selection process for common hot-work tool steel grades.
Core Industry Reference: The H13 tool steel series (1.2344 / SKD61 / 4Cr5MoSiV1) is the most widely used general-grade hot-work tool steel in the global market. Approximately 70% of international hot-work tool steel orders adopt H13 series materials, which is the preferred conventional grade for most thermal forming scenarios.
This section provides fast and accurate grade matching for common thermal processing scenarios, suitable for preliminary material confirmation and quick RFQ quotation.
2. Material Selection Based on Actual Buyer Requirements
For projects with controlled procurement costs and stable working conditions, the following grades provide balanced performance and economic benefits:
5CrNiMo: Low-alloy hot-forging steel, widely used for large hammer forging dies and open die forging with stable cost advantages
Conventional H13: Non-ESR remelted H13 reduces overall cost by 20%–40% while meeting standard die casting requirements
2.2 Maximum Die Service Life Selection
H13 ESR (1.2344 ESR / 8407): High-purity electroslag remelted grade, the most reliable solution for long-life aluminum and magnesium alloy die casting
H19 Hot-Work Steel: Optimized for high-wear brass extrusion insert tooling
2.3 High Toughness & Anti-Cracking Selection
H11 (1.2343): Excellent mechanical toughness and thermal shock resistance, effectively reduces mold cracking failure compared with H13
5CrNiMo: Outstanding impact toughness, the preferred material for heavy hammer forging dies
2.4 High Red Hardness & High-Temperature Wear Resistance Selection
H21 (1.2581): Stable performance under 700°C continuous high temperature, the most mainstream high-temperature hot-work grade
H22 / H24 / H26: Gradually upgraded high-temperature hardness grades for ultra-high-temperature working conditions
3. Grade Matching Based on Operating Working Conditions
|
Peak Mold Surface Temperature |
Applicable Steel Grades |
|---|---|
|
Below 500°C |
H10, H11, H13, P20 |
|
500°C – 600°C |
H11, H13, H19 |
|
600°C – 700°C |
H21, H22, H19 |
|
700°C – 800°C |
H22, H24, H26, H42 |
|
Above 800°C |
H26, H42, H43 (Special Custom Grade) |
|
Impact Load Level |
Recommended Steel Grade |
|---|---|
|
High Impact (Hammer Forging) |
5CrNiMo, H11 |
|
Medium Impact (Press Forging) |
H13, H21 |
|
Low Impact (Hot Extrusion) |
H13, H21, H19 |
|
Cooling Method |
Recommended Grades |
Grades to Avoid |
|---|---|---|
|
Continuous Water Cooling (Aluminum Die Casting) |
H10, H11, H13, H19 |
H21, H22, H24, H25, H26 |
|
No Water Cooling (Brass/Copper Casting) |
H21, H22, H26, H19 |
None |
|
Intermittent Water Cooling |
H13 (Acceptable) |
None |
4. International Procurement Standard & Quality Specification
Accurate standard designation is the core basis for international procurement, quality inspection and customs clearance.
AISI H13 per ASTM A681-2015
JIS SKD61 per JIS G4404:2015
Necessary Certification Requirements: Minimum EN 10204 3.1 mill test certificate; EN 10204 3.2 third-party certification for high-standard industrial molds.
4.2 Procurement Mistakes to Avoid
Do not ignore the version year of international material standards
Ensure MTC reports contain complete batch number and production traceability information
Confirm heat treatment state: annealed, pre-hardened or quenched and tempered
4.3 Authorized Third-Party Inspection Institutions
SGS: Global general industrial inspection
TÜV: Authoritative certification for European mechanical manufacturing
Intertek: High recognition in American and European markets
All hot-work tool steel products adopt standard seaworthy export packaging to prevent oxidation and deformation during long-distance marine transportation:
Flat bars and plates: Steel strip binding + foam edge protection + waterproof packaging
Full Set of Shipment Documents: Commercial invoice, packing list, mill test certificate, certificate of origin, insurance certificate and bill of lading.
5.1 Standard Hot-Work Steel RFQ Template
Dear Sales Team,
Please provide your official FOB and CIF quotation based on the following technical specifications:
International Standard: [ASTM / DIN / JIS / EN]
Size Specification: Diameter / Thickness × Width × Length
Material State: Annealed / Pre-hardened / Hardened
Quality Certification: EN 10204 3.1 (Minimum)
Destination Port: [Target Port]
Payment Term: T/T / L/C / Negotiable
Best regards, [Buyer Name] [Company Name]
Email Subject: RE: Professional Hot-Work Tool Steel Selection & Quotation Support
Thank you for your inquiry about hot-work tool steel materials. According to your actual working conditions and production requirements, we provide targeted material selection suggestions and technical parameters as follows:
Recommended Steel Grade: [H13 / H11 / H21 / Other Grades]
AISI Standard: [Corresponding Grade]
JIS Standard: [Corresponding Grade]
Technical Selection Basis:
Balances thermal fatigue resistance, toughness and wear resistance
We can supply full-size specifications and provide complete mill test certificates and export documents. Please advise your detailed quantity and destination port for our formal quotation.
6. Hot-Work Steel Selection Decision Tree
Step 1: Confirm core application type
Hot Forging: Confirm forging method, workpiece material and continuous working temperature
Other Hot Work: Judge continuous high temperature or intermittent impact working conditions
Step 3: Confirm budget level and service life expectations