Nástrojová ocel Cr12Mo1V1 pro práci za studena

AOBO STEEL – Trusted Global Tool Steel Supplier

Cr12Mo1V1 steel is a high-carbon, high-chromium type of ledeburitic cold work mold steel that is widely adopted internationally. It is also known by the American AISI/ASTM designation D2, the Japanese JIS designation SKD10 or SKD11, the German DIN designation X153CrMoV12-1 or 1.2379, and the Austrian Bohler designation K110.

1. Composition(GB / T 1299—2000)

C	Si	Mn	Cr	Mo	PROTI	P	S	Other
1.40 – 1.60	≤0.60	≤0.60	11.0 – 13.0	0.70 – 1.20	0.50 – 1.10	≤0,030	≤0,030	Co ≤1.00

2. Physical Properties of Cr12Mo1V1 Steel

2.1 Critical Point Temperature

Kritický bod	Ac1	Acₑₘ	Ar₁	Arₑₘ	paní
Temperature (Approx. value) /°C	810	875	695	750	190

2.2 Lineární expanzní koeficient

Temperature/°C	20 ~ 100	20 ~ 200	20 ~ 300	20 ~ 400
Linear Expansion Coefficient α /× 10⁻⁶°C⁻¹	10.5	11.5	11.9	12.2

2.3 Other Physical Properties

Modulus of Elasticity E/MPa	Specific Heat Capacity cₚ/[J/(kg·K)]
207000	461

3. Forging Process Specification of Cr12Mo1V1 Steel

Položka	Heating Temperature/°C	Initial Forging Temperature/°C	Final Forging Temperature/°C	Způsob chlazení
Ocelový ingot	1120 ~ 1160	1050 ~ 1090	≥850	High-temperature annealing
Ocelový předvalek	1120 ~ 1140	1050 ~ 1070	≥850	Vysokoteplotní žíhání, ochlazování jámy nebo chlazení pískem

Please fill out the following form to contact us for the best quotation of Cr12Mo1V1 steel!

4. Tepelné zpracování of Cr12Mo1V1 Steel

4.1 Předehřívání

Plan	Procesní parametry
Forging blank, steel ingot annealing process	Heat at a rate of <100°C/h to 870 ~ 890°C, hold for 2 – 4h, cool at a rate of <30°C/h to below 550°C, then air cool.
Steel material isothermal annealing process	Heating temperature is 840 ~ 860°C, hold for 2h; furnace cool to 720 ~ 740°C, hold for 4h, furnace cool to below 550°C, then air cool. Annealed hardness is 205 ~ 255 HBW.

4.2 Kalení

Quenching Process Specification

	Heating Temperature/°C	Chlazení	Tvrdost HRC
Plan	1st Preheat	2nd Preheat	Quench Heating
Ⅰ	500 ~ 600	820 ~ 860	980 ~ 1040
Ⅱ	500 ~ 600	820 ~ 860	1060 ~ 1100

Relationship between Quenching Temperature, Hardness, and Retained Austenite Content

Quenching Temperature/°C	900	950	980	1000	1030	1050	1080	1100	1130
Tvrdost HRC	52.5	57.5	60	63.5	64	63	62.5	62	60
Retained Austenite Content (Volume fraction, %)	—	4	4	4.5	6	10	13	24	—

4.3 Temperování

Recommended Tempering Process Specification

Quenching Plan	Tempering Temperature/°C	Počet cyklů temperování	Tvrdost HRC
Ⅰ	180 ~ 230	1	60 ~ 64
Ⅱ	510 ~ 540	2	60 ~ 64

The effect of tempering temperature on hardness

Quenching condition	Teplota temperování	Untempered (HRC)	200°C	250°C	300°C	350°C	400°C	450°C	500°C	550°C	600 °C	650°C	700°C
1010℃/air cooled	Harndness(HRC)	62	60.5	59.5	58.5	58	58	58	58	56	48	42	36.5
1010℃/oil quenched	Harndness(HRC)	62.5	61.5	60	58.5	58.5	58.5	58.5	59.5	56	48	42	36.5
1066℃/air cooled	Harndness(HRC)	63	61.5	60.5	60	59.5	59.5	59.5	60.5	61.5	51	43	40.5
1066℃/oil quenched	Harndness(HRC)	63	61.5	60	59.5	59.5	59.5	60	61	62.5	51	44	38
1121℃/air cooled	Harndness(HRC)	60.5	59.5	58	57.5	57	57	57	59.5	62	51.5	44	40.5
1121℃/oil quenched	Harndness(HRC)	60	58	58.5	56	54	54.5	56.5	58	61	57	44	38

5. Mechanické vlastnosti of Cr12Mo1V1 Steel

Cr12Mo1V1 steel is a high-carbon, high-chromium steel, possessing high hardenability, quenching hardenability, and wear resistance. Due to the higher content of Molybdenum (Mo) and Vanadium (V) elements compared to Cr12MoV ocel, the as-cast structure within the steel is improved, the crystal grains are refined, and the carbide morphology is enhanced. Consequently, the steel exhibits superior toughness indicators such as tensile strength, hardness, and impact toughness, along with good wear resistance and higher tempering resistance. A comparison of the mechanical properties between Cr12Mo1V1 steel and Cr12MoV steel is shown in the Table.

Comparison of Mechanical Properties between Cr12Mo1V1 and Cr12MoV Steel

Quenching Temperature/°C	Třída oceli	Bending Strength (σb)/MPa	Impact Toughness (aK)/J/cm²	Tvrdost HRC
1020	Cr12Mo1V1	3262	40	59.3
	Cr12MoV	2888	40	61.0
1060	Cr12Mo1V1	1550	35.5	61.0
	Cr12MoV	796	10	61.5

6. Aplikace

Cr12Mo1V1 steel is primarily used for manufacturing various high-precision, long-life cold work molds, tools, and measuring instruments. Specific applications include:

• Complex-shaped punching dies/cavity dies.

• Silicon steel sheet blanking dies.

• Trimming dies, rolling dies.

• Wire drawing dies.

• Cold extrusion dies.

• Steel plate deep drawing dies.

• Thread rolling dies/plates.

• Cold shearing blades/circular saws.

• Standard tools and gauges.

• Plastic molds requiring high precision, long life, and wear resistance.

• Used for heavy-duty, high-impact cold working applications.

7. Ekvivalentní známky

USA (ASTM/UNS): D2 / T30402
Japonsko (JIS): SKD11
Německo (DIN): 1.2379 / X155CrVMo12-1

Get a Competitive Quote for Cr12Mo1V1 Tool Steel

With over 20 years of forging expertise, Aobo Steel is your trusted partner for high-performance Cr12Mo1V1 tool steel. We provide not just materials, but solutions. Leverage our deep industry knowledge and reliable supply chain for your project’s success.

✉ Contact us by filling out the form below.

Naše produkty