In everyday life, molds are necessary for mass-produced products. Due to the different characteristics of different products, the materials used for stamping metal products also vary.
As a mold designer, you need to have an in-depth understanding of various stamping materials.
I. SUS (Stainless Steel)
Common stamping material codes: SUS301 (spring steel, magnetic), SUS302 (stainless steel appearance), SUS304 (non-magnetic), SUS430 (magnetic, subject to rust)
Physical characteristics:
Density: 7.95
Tensile strength: Above 53kgf/mm 2
The surface has a metallic luster and does not rust. It does not require surface treatment and cannot be used as a cladding base plate, but it can be electrolyzed. It is generally used in refrigeration, air conditioning, household appliances and decorative structures.
Material specifications:
Thickness range: 0.1 ~ 10.0mm, above 10.0mm needs to be customized
Width Range: Maximum width 5'(1524mm), generally 4'(1219mm or 1250mm)
Based on the surface appearance of the material, it can be divided into matte, glossy, mirror, brushed surface, etc. For special products that need to protect the surface gloss from damage, an additional layer of PVC film is added for protection.
Note: The general tolerance for thickness is +0, -0.08 mm. For example, T = 2.0 mm, actual measurements within the range of 2.0-1.92 mm are considered acceptable.
II. SPCC, CRS (cold rolled plate), SPCD (cold plate drawing), SPCE (special cold plate drawing)
Physical characteristics:
Density: 7.85
Tensile strength: Above 28kgf/mm 2
The surface of the material has a gray luster and is subject to scratches and rust when in contact with air. Anti-rust liquid is generally applied to the surface of the material to avoid contact with air. It is very suitable as a base material for surface materials such as galvanized white zinc.
Material specifications:
Thickness range: 0.25 ~ 3.2mm. Above 3.2mm must be customized in advance.
Width Range: Maximum width 5'(1524mm), generally 4'(1219mm or 1250mm)
Note: The general tolerance for thickness is +0, -0.08 mm. For example, T = 2.0 mm, actual measurements within the range of 2.0-1.92 mm are considered acceptable.
III. AL (aluminum foil)
Common stamping material codes: A1100P-O (O represents soft material, no hardness), A1050P, A5052H32P, AL6061T6, AL6063T5, etc.
Physical characteristics:
Density: 2.75
Tensile strength: A5052H32P=25kgf/mm 2 above, A1100P, A1200P=7 kgf/mm 2 above, AL6061T6=27kgf/mm 2 above
The surface of the material has a metallic white luster and is very prone to corrosion from air. An additional layer of PVC film is required for protection. Suitable surface treatments include anodizing, conductive oxidation treatment, etc.
Material specifications:
Thickness range: 0.3 ~ 20mm, above 10.0mm must be customized in advance.
Width Range: Maximum width 5'(1524mm), generally 4'(1219mm or 1250mm)
Note: The general tolerance for thickness is +0, -0.08 mm. For example, T = 2.0 mm, actual measurements within the range of 2.0-1.92 mm are considered acceptable.
4. SPGC (Hot Galvanized Steel Plate)
Physical characteristics:
Density: 8.25
Tensile strength: 40~55kgf/mm 2 above
The surface of the material has a metallic white luster with patterns and is not easily oxidized. Once oxidized, it will show white spots. It is not suitable for surface treatment base plates, and the material itself is not suitable for cladding.
Material specifications:
Thickness: 0.4 ~ 3.2mm, above 3.2mm must be customized in advance.
Width: Maximum width 5'(1524mm), usually 4'(1219mm or 1250mm)
Note: The general tolerance for thickness is +0, -0.08 mm. For example, T = 2.0 mm, actual measurements within the range of 2.0-1.92 mm are considered acceptable.
V. SPHC, HRS (hot rolled steel sheet)
Physical characteristics:
Density: 7.85
Tensile strength: 41~52kgf/mm 2 above
The surface of the material has a black-gray luster, the surface is hard and has no scratches, but is subject to oxidation and corrosion. Before production, the surface needs to be removed. The material itself cannot be used for coating, but it can be used for exterior painting, powder spraying, etc.
Material specifications:
Thickness: 1.4 ~ 6.0mm. Above 6mm must be customized in advance.
Width: Maximum width 5'(1524mm), usually 4'(1219mm or 1250mm)
Note: The general tolerance for thickness is +0, -0.08 mm. For example, T = 2.0 mm, actual measurements within the range of 2.0-1.92 mm are considered acceptable.
SAW. CU (Copper Foil)
Common stamping material codes: C1020P-O (O represents soft material, no hardness), C1020P-1/2H (Vickers hardness HV75~120) 1/4H HV=60~100 H HV=80 above
Physical characteristics:
Density: 8.9
Tensile strength: material O=20kgf/mm 2 above, material 1/4H=22~28 kgf/mm 2 material 1/2H=25~32kgf/mm 2 material H=28 kgf/mm 2 above
Copper has excellent conductivity and heat conduction properties, excellent stretching process and excellent resistance to welding and corrosion. It can be drawn, polished, pickled, galvanized, etc.
Material specifications:
Thickness: 0.3mm above
Width: Generally 2', i.e. 610mm, above this range must be customized in advance.
Note: The general tolerance for thickness is +0, -0.08 mm. For example, T = 2.0 mm, actual measurements within the range of 2.0-1.92 mm are considered acceptable.
