Cr12W

Description

CR12W是一种抗磨损冷作模具钢,具有较高的淬透性,淬硬性,强韧性,耐磨性和淬火体积变形小等特点。

Cr12W is a kind of wear-resistant cold working die steel, which has the characteristics of high hardenability, hardenability, strength and toughness, wear resistance and small quenching volume deformation.

Worldwide equivalents of grade: Cr12W

/ChinaEnglandGermanyJapan
StandardGBBSDIN,WNrJIS
GradeCr12WBS11.2436x210Crw12SKD2
/ItalySpainAustriaSweden
StandardUNIUNEASSAB/SS
GradeX215CrW121KUx21oCrW12K107Xw5/2710
 
Chemical Composition of Cr12W Steel Material%
CSiMnSWCrP
2.0-2.3≤0.40≤0.35≤0.030.6-0.911.0-12.5≤0.03

Heat Treatment 

Annealing

800 to 850°C

Slow con trolled cooling in furnace at a rate of 10 to 20°C/hr down to approx. 600°C, further cooling in air.

Hardness after annealing: max. 250 HB

Stress relieving

650 to 700°C

Slow cooling in furnace; intended to relieve stresses set up by extensive machining, or incomplex shapes.

After through heating, hold in neutral atmosphere for 1 to 2 hours.

Hardening

950 to 980°C

Oil, salt bath (220 to 250°C or 500 to 550°C), air plast, still air. Holding time after temperature equalization: 15 to 30 minutes. Obtainable hardness: 64 – 66 HRC.

Special treatment: Hardening 1020°C and tempering at 500°C.

Obtainable hardness approx. 61 HRC (e.g. if followed by nitriding).

Tempering

Slow heating to tempering temperature immediately after hardening/time in furnace 1 hour for each 20 mm of workpiece thickness but at least 2 hours/cooling in air. For certain cases we recommend to reduce tempering temperature and increase holding time.

Features and Application

Cr12MoV模具钢淬透性、淬火回火后的硬度、强度、韧性比CR12高,直径为300~400mm以下的工件可完全淬透,淬火变形小,但高温塑性较差。

Cr12MoV多用于制造截面较大、形状复杂、工作负荷较重的合种模具和工具。如冲孔凹模、切边模、滚边模、钢板等。

Cr12MoV die steel has higher hardenability, hardness, strength and toughness after quenching and tempering than Cr12. Workpieces with diameter less than 300 ~ 400mm can be completely quenched, with small quenching deformation, but poor high-temperature plasticity.

Cr12MoV is mainly used to manufacture hybrid molds and tools with large section, complex shape and heavy workload. Such as punching die, trimming die, edging die, steel plate, etc.

Available Size

Round BarDiameter(mm): 6-800mm ,Length: 1000-9000mm or custom size
Plate/Flat/BlockThickness: 6mm-500mm , Width: 20mm-1000mm or custom size
Tolerance±1%,Thickness: +/-0.02mm, Width:+/-2mm

Our Services

1. The price is determined according to the material, size, finishing process and different payment methods

2. Each material has been ut tested

3. We have every kind of material in stock, so we can deliver it in time.

4. The size of steel can be customized according to customer requirements, and the minimum order quantity and specification model can be developed / produced according to international, Chinese or industrial standards

5. There are more services. Welcome to consult.