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Abrasive tool steel

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Forging Series

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Product Description
Device Parameters

Commodity name: Abrasive tool steel
Commodity ID: 1123540525764988928

Chemical Composition and Properties of Mold Steel

Preface

Number

Material grade

Chemical composition ( % )

Annealing

Hardness HB

Tempering hardness HRC

Yes

5CrNiMo

0.50-0.60

≤ 0.40

0.50-0.80

0.15-0.30

≤ 0.025

1.40-1.80

≤ 0.20

197-241

53-58

H13

0.32-0.45

0.80-1.20

0.20-0.50

4.75-5.50

1.10-1.75

≤ 0.025

0.80-1.20

≤ 0.20

≤ 235

≥ 60

1.40-1.60

0.10-0.60

0.20-0.60

11.0-13.0

0.70-1.20

≤ 0.025

0.50-1.10

≤ 0.20

≤ 255

≥ 59

718

0.32-0.40

0.20-0.80

1.00-1.50

1.70-2.00

0.25-0.40

≤ 0.025

0.85-1.15

≤ 0.20

Pre-hardened 30-35 HRC

Hardening 35-40 HRC

4Cr13

0.36-0.45

≤ 0.60

≤ 0.80

12.0-14.0

≤ 0.025

≤ 0.20

≤ 201

≥ 50

4Cr16Mo

0.33-0.43

≤ 1.00

15.0-17.0

1.00-1.30

≤ 0.025

≤ 0.20

≤ 250

≥ 49

NAK 80

0.05-0.18

0.15-1.00

1.0-2.0

0.20-0.40

≤ 0.025

2.30-3.50

0.70-1.50

0.50-1.50

37-43HRC

Time-hardened

Chemical treatment, not quenched

XFP 80

0.12

1.80

0.30

≤ 0.025

3.0

1.0

37-43HRC

Time-hardened

Chemical treatment, not quenched

Technical Requirements for Mold Steel

1. The permissible deviations in the chemical composition of steel shall comply with the provisions of GB 222-84. The smelting process—electric furnace plus vacuum refining, or vacuum refining plus electroslag remelting—shall be specified in the contract.

2. Mold steels shall be subjected to ultrasonic testing in accordance with GB/T 6402-1991; the results shall not reveal any dense defects with an equivalent diameter greater than Ø2 mm. Isolated metallurgical defects are permissible, provided that no more than three defects have an equivalent diameter of Ø2–3 mm, and only one defect with an equivalent diameter of Ø3–4 mm is allowed.

Mold Steel Grades, Types, Performance Characteristics, and Applications

Serial number	Category	Grade	Implementation Standard	Similar grades	Available varieties	Performance Characteristics and Applications
1	Low-alloy hot-work die steel	5CrNiMo	GB11880-89 GB/T1299-2000	55NiCrMoV6 (Germany) )、 SKT4( Japan )、 5XHM( Russia )、L6 ( AISI/ASTM ), 55NiCrMoV2 ( ISO ), 55NiCrMoV7(EN)	Module Forged material Forging piece	It exhibits excellent toughness, strength, high wear resistance, and good hardenability. At room temperature and… 500-600 Its mechanical properties are nearly identical at room temperature. Even when heated to 500°C, its hardness remains at 300 HB. It is used to manufacture medium-sized forging dies with simple geometries and thicknesses of 250–300 mm, as well as trimming dies. This steel is prone to forming white spots, necessitating strict control of the smelting process and post‑forging cooling.
2	Medium-alloy hot-work die steel	4Cr5MoSiV1	GB/T1299-2000	H13 (AISI/ASTM 681-2008), BH13 (United Kingdom) )、 8402 (Sweden), SKD61 (Japan) JICS4404-2000)	Module Forged round steel bar Forged flat steel	It is an air‑cooled, hardened hot‑work tool steel and one of the most widely used grades in this category. It exhibits excellent thermal strength and moderate wear resistance; when quenched in air at relatively low austenitizing temperatures, it shows minimal distortion during heat treatment, produces little scale formation during air quenching, and can withstand erosion by molten aluminum. This steel is employed for manufacturing extrusion dies, mandrels, forging dies for drop hammers, dies for forging presses, inserts for precision forging machines, and die‑casting molds for copper and aluminum alloys.
3	High-alloy cold-work die steel	Cr12Mo1V1	GB/T1299-2000	D2 (AISI/ASTM 618-2008), BD2 (United Kingdom) )、 X155CrMoV12-1( Germany )、 SKD11 (Japan) JICS4404-2000) 、 SVERKER21( Sweden )、 K110 (Austria) )、 160CrMoV(ISO)	Module Forged material	It is a high-carbon, high-chromium cold-work die steel widely adopted internationally and classified as a ledeburite steel. Years of practical experience have demonstrated that… Cr12Mo1V1 Its performance is superior to Cr12MoV . Due to the steel's Mo 、 V Volume ratio Cr12MoV High in steel, and contains Co, The microstructure of the steel has been improved, resulting in enhanced strength and toughness as well as increased wear resistance. Japan’s… SKD11 The composition is between that of our country’s… Cr12Mo1V1 and Cr12MoV between, but contains V Does not contain V Relatively low and不含 Co, But Japan has… SKD11 Equivalent to D2 To view. Cr12Mo1V1 and Cr12MoV It serves the same purposes and is used for higher‑performance mold components, extrusion dies, stamping dies, and forming rolls; it is also employed in high‑wear‑resistant plastic molds.
4	Pre-hardened plastic mold steel	3Cr2NiMo 3Cr2NiMnMo	GB/T1299-2000 YB/T094-1997	718 (Sweden) ASSAB Company )、 P20+Ni (Sweden) )、 PX4/PX5( Japan )、 GS-318 (Germany) )、 SWP20( Shanghai Wugang )、 CS718 (China Great Wall Special Steel) )	Module Forged round steel bar Forged flat steel	It exhibits excellent overall mechanical properties and high hardenability, enabling steel with large cross sections to achieve a relatively uniform hardness distribution after quenching and tempering. When this steel is used for mold manufacturing, it is typically subjected to quenching and tempering first, with a hardness of… 28-38HRC Subsequently, after machining, the mold can be put directly into service, thereby ensuring the performance of large and extra-large molds while preventing deformation caused by heat treatment. This steel is well suited for manufacturing extra-large and large plastic molds and can also be used for die‑casting dies intended for low‑melting‑point alloys.
5	Corrosion-resistant plastic mold steel	4Cr13	YB/T094-1997	X39Cr13 (ISO, EN), X38Cr13 (Germany) )、 Z40C14( France )	Round steel bar Flat steel Square steel bar	It is a martensitic stainless steel with good machinability. After heat treatment, it exhibits excellent corrosion resistance, superior polishability, high strength, and outstanding wear resistance, making it well suited for manufacturing plastic grinding tools and molds for transparent plastic products that are subjected to heavy loads and severe wear in corrosive environments. However, its weldability is poor, so careful attention must be paid during use.
6	Corrosion-resistant plastic mold steel	4Cr16Mo	Shanghai Wugang	CLC2316H (France), GWS-2316, X38CrMo16 1 ( DIN )	Round steel bar Flat steel Square steel bar	It belongs to the martensitic stainless steel family. , It exhibits excellent corrosion resistance, high mechanical strength and wear resistance, good machinability, and superior mirror‑finish polishability. It is suitable for corrosion‑resistant plastic molds, PVC Pipe fitting dies, profile extrusion dies, and plastic molds requiring a mirror finish
7	Pre-hardened plastic mold steel	NAK80 (Japan)	Japan Daido Steel Co., Ltd.	P21 Optimization (United States)	Module Sheet material	No heat treatment required, It exhibits excellent optical rotation. , Machinability , Excellent etching performance. Solution treatment involves heating the mold or workpiece to 600 °C Preheat, then heat to 840–900. °C Maintain the temperature for a specified period (at least 2 hours), then air-cool to room temperature; the hardness after solution treatment is 29-32HRC。 After precision machining, the mold undergoes aging treatment, achieving a hardness of 37–43 HRC. It exhibits excellent mirror‑polishing properties, making it well suited for manufacturing high‑precision mirror molds. High-efficiency blanking dies, punching dies, and embossing dies; various shears; insert blades; woodworking blades; thread-rolling dies and wear-resistant slides; cold heading dies; thermoset resin molding dies; deep-drawing dies; and cold-extrusion dies.
8	Plastic mold steel	XFP80	Xiongfeng Company	P21 Optimization (USA), NAK 80 (Japan)	Module Sheet material	Solution‑aging treatment; no quenching required. Excellent polishability and etchability, suitable for LCD display molds and high‑finish plastic molds.