1.2713 | SKT4 | 5CrNiMo | 5XHM | L6 | 55NiCrMoV6
Introduction to 1.2713 (5CrNiMo/SKT4/5XHM/L6/55NiCrMoV6)
Common Traits
High hardenability allows uniform hardness (40–52 HRC) across thick sections, supported by alloying elements like Cr (enhancing wear resistance), Ni (boosting toughness), and Mo/V (refining grain structure and preventing temper softening).Fine, uniform microstructures from controlled melting (e.g., ESR) reduce carbide segregation, improving isotropic mechanical properties (e.g., transverse impact resistance).
Distinct Properties
1.2713 (German standard): Offers excellent thermal conductivity and resistance to thermal cracking, ideal for moderate-load dies.
5CrNiMo (Chinese standard): Classic hot forging die steel with stable performance in medium-temperature environments, combining low thermal expansion with reliable ductility.
AISI L6 ( American standard): Features higher Ni content (~3.5%), enhancing toughness for shock-loading scenarios while maintaining good hardenability.
55NiCrMoV6 (European standard): Incorporates V for carbide refinement and improved temper resistance, delivering superior strength (up to 1,500 MPa) and dimensional stability.
Advantages
Versatile across temperature ranges (300–600°C), resisting softening and wear.Cost-effective for medium-to-high production volumes, with ESR variants offering premium purity for critical applications.Machinable and weldable (with preheating), supporting repair and rework.Collectively, these steels excel in balancing durability, heat resistance, and processability, making them staples in hot work tooling.
Chemical Composition
| 1.2713 / 5CrNiMo / L6 / 55NiCrMoV6 / SKT4 / 5XHM | ||||||||
| Standa
rd/Steel Grade |
Chemical Composition(%) | |||||||
| C | Si | Mn | Cr | Mo | V | Ni | ||
| GB | 5CrNiMo | 0.50~0.60 | ≤0.40 | 0.50~0.80 | 0.50~0.80 | 0.15~0.30 | - | 1.40~1.80 |
| ASTM | L6 | 0.65~0.75 | 0.10~0.50 | 0.25~0.80 | 0.60~1.20 | ≤0.50 | - | 1.25~2.00 |
| DIN/W-Nr. | 55NiCrMoV6/1.2713 | 0.50~0.60 | 0.10~0.40 | 0.65~0.95 | 0.60~0.80 | 0.25~0.35 | 0.07~0.12 | 1.50~1.80 |
Supply Form & Range
For 1.2713 / 5CrNiMo / L6 / 55NiCrMoV6 / SKT4 / 5XHM steel, we can provide round bars and plates. Round rods can be sawn to the length you need and used as single or multiple cut pieces. Grinding tool steel bars can be provided, offering high-quality precision finished bars for strict tolerances.
| Product Type | Dimensions | Range |
|---|---|---|
| Round Bar | Diameter | 16 – 400 mm |
| Length | 3,000 – 5,800 mm | |
| Flat Bar | Thickness | 16 – 300 mm |
| Width | 200 – 800 mm | |
| Length | 3,000 – 5,800 mm |
In addition, we can provide a variety of surface conditions of tool steels:Black；Peeled/Grinded;Turned/Machined/Bright/Milled
Customization of core parameters
Depending on your application scenario, we offer a full range of configurable manufacturing:
✓ Geometric size: Support millimeter precision size customization (tolerance ±0.05mm)
✓ Surface treatment: grinding/polishing/sandblasting can be specified (Ra0.4-6.3μm)
✓ Composition optimization: the ratio of C, Cr, Mo, V and other alloy elements can be adjusted (according to ASTM A681 standard)
Quality Test
We have 2 types of quality inspection, general quality test and high quality test.
1.General quality test include:
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Surface
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Chemical composition
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Size
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Tolerance
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UT testing
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Hardness.
2.High quality test include:
Cold work tool steel:
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Non-metallic inclusion
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Eutectic carbide.
Hot work tool steel:
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Non-metallic inclusion
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Microstructure
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Band segregation
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Grain size.
Packing and Delivery
Secure packaging, reliable shipping, and a robust tracking system ensure safe and timely deliveries.
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Delivery time: 1 Month
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Packing:Bundle, or with all kinds of colors PVC or as your requirements
Production Process
Complete production capacity from raw material selection, EF（Electric Furnace）,LF(Ladle Furnace),VD(Vacuum Debonding), ESR(Electroslag Remelting), Forging, heat treatment, machining to finished die steel.With complete quality inspection means and various quality inspection equipment, it can ensure that all die steel products are subject to strict quality inspection, flaw detection and metallographic inspection.
EAF+ LF +VD +Ingot Casting +ESR +Forging +Quenching And Temper +Annealing +Ultra Refinement
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EF+LF+VD:electric furnace+Ladle furnace+vacuum debonding
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ESR:Electroslag Remelting
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Forging
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Ingot Casting
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Annealing
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Brandsaw cutting
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Turning Milling
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