H13 3crw8V Mold Tool Die Steel Plate Forged and Rolled Flat Round Bar

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H13 3crw8V Mold Tool Die Steel Plate Forged and Rolled Flat Round Bar

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Product Description

Basic Specifications

Model NO.:Round bar

Composition:Stainless Steel Scrap

Technique:Forged

Shape:Plate

Surface:Polished

Application:Tool Steel Bar

Specification:6-400mm

HS Code:7214100000

Capacity:5000 Ton/Year

Origin:China

Product Description

Properties of HM3 Material

3Cr3Mo3VNB steel (code named HM3) is a hypereutectoid steel, classified as a medium carbon chromium series high strength and toughness hot work die steel. This material is an improved version referencing American AISI standard H10 steel and Russian TOCT standard 3X3M3Φ steel, sharing similarities with HM1 steel. It has been a standard in high-performance applications since the 1980s.

Chemical Composition (%)

C	Si	Mn	Cr	Mo	V	Nb	P	S
0.24-0.33	≤0.60	≤0.35	2.60-3.20	2.70-3.20	0.60-0.80	0.08-0.15	≤0.030	≤0.030

HM3 Quenching and Tempering Specifications

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Quenching: Temperature 950~1000ºC, hardness 46~50HRC, grain size 10~11 grade.

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Tempering (High): Temperature 500~580ºC, hardness is 1~1.5HRC higher than quenched state.

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Tempering (Standard): Temperature 450~650ºC, hardness 42~48HRC.

Key Applications & Purposes

✓Roll-forging dies: Ideal for connecting rod production, eliminating wear and thermal fatigue with a service life up to 19,000 pieces.

✓Superior Durability: Mold service life reaches more than 4 times that of 5CrNiMo and 5CrMnMo steels.

✓Bearing Industry: Extrusion die life is 4-7 times higher than 3Cr2W8V steel.

✓Forging Dies: Significant improvement over H13 steel, generally doubling the service life.

✓Seamless Pipe: Top service life is twice that of 3Cr2W8V and 3 times that of H13 steel.

✓Die Casting: Suitable for non-titanium metal die casting and heat-resistant stainless steel forging.

✓Extreme Conditions: Especially suitable for molds with large impact loads and high working temperature differences.

✓Specialty Alloys: Excellent for heat-resistant, stainless high-temperature alloy forming molds.

✓Hardened Molds: Perfect for integral hardened plastic molds.

Frequently Asked Questions

● What is HM3 steel?

HM3 is the code name for 3Cr3Mo3VNB steel, a medium carbon chromium high-strength hot work die steel known for its toughness and heat resistance.

● How does HM3 compare to H13 steel?

In forging die applications, HM3 steel typically offers a service life that is approximately double that of standard H13 steel.

● What are the recommended quenching temperatures?

The optimal quenching temperature for HM3 steel is between 950ºC and 1000ºC, resulting in a hardness of 46~50HRC.

● Can HM3 be used for bearing production?

Yes, in the bearing industry, extrusion dies made from HM3 steel have shown a service life 4 to 7 times higher than 3Cr2W8V steel.

● What makes HM3 suitable for impact loads?

Its specific chemical composition, including Chromium, Molybdenum, and Vanadium, provides the high strength and toughness required to handle large impact loads and significant temperature variations.

● What is the typical hardness after tempering?

Depending on the tempering temperature (between 450~650ºC), the resulting hardness typically ranges from 42 to 48HRC.