(DIN 1.2316) is a chrome-molybdenum steel with improved corrosion resistance properties, (DIN 1.2316) possesses good polishability, toughness, heat resistance and wear-resistant properties. It is often used for tools for processing chemically aggressive plastic materials (e.g. PVC).
Smelting method : EAF+LF+VD+ESR
Main Characteristics : Extremely high monitoring performance, favorable corrosion resistance, high abrasion resistance and favorable machining performance.
Major Applications : Super-mirror plastic molds: molds for optical lens and other transparent plastic pieces
Corrosion preventive high-resisting molds: Molds for fold vessels, cosmetics vessels, medical devices, light guiding plates, bottle covers, etc.
Formed resin materials: PC, PVC, PP, PE, PF, PMMA adding fire retardant resin etc.
|1.00-1.30||0.90-1.00||MAX 0.030||MAX 0.030|
|Room temperature density (kg/m³)||Specific heat of room temperature (J/Kg.K)||200°C thermal conductivity (W/m.K)|
|Elastic mouldsus (N/nm²)||Linear Expensivity (x10-6K)
20 ~ 200°C
20 ~ 400°C
Ultrasonic flaw detection :
Flaw detection standard: as per GB/T 6402-2008 Class 4 flaw detection standard or as per customer requirements.
|Class A||Class B|
|Class C||Class D|
Delivery State :
(1) Delivery hardness, delivery under annealing state ≤ 255HB.
Supply Specifications :
|Round Steel||Flat Steel||Module|
|Φ 16-500mm||16~120mm x 200~610mm||120~300mm x 300~1000mm|
Heat Treatments :
|Heating to 850°C for heat insulation and cooling to 650°C at 10°C/h air cooling||1020-1030°C quenching rapid air cooling|
|Tempering temperature 250°C, (favorable tenacity and corrosion resistance) : selecting tempering temperature as per hardness requirements; tempering for twice.|