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Steel used in Refrigerator

Refrigerator is an important kitchen appliance. It is made of relatively simple material and is used in a gentle environment. The tendency is to use thinner sheet and to make products with larger volume. Currently the applied materials include cold rolled steel, hot dip galvanized steel, prepainted steel, leminated steel, stainless steel and Al-Zn alloy coated steel.

1. Back Cover

Part requirement: Gentle working environment, flat and straight, no special functional requirement.
Material requirement: Flat and straight, easy for assembly.
Recommended materials:


Part No.

Part No.

Type

Grade

Size(mm)

Specialty

1

Back colver

Al-Zn alloy-coated steel

DX51D+AZ

0.3-0.33

Anti-fingerprinting;
Evenly Zinc spangle;
Embossed

Hot dip galvanized steel

DX51D+Z

0.3-0.33

Anti-fingerprinting;
Embossed

2. U case

Part requirements: Proper stiffness, movable, flat and straight, proper hardness and no deformation after foaming.
Material requirements: Flat and straight, thickness ≥0.35mm, Hardness ≥40.
Recommended materials:

Part No.

Part No.

Type

Grade

Size(mm)

Specialty

2

U Case

General cold rolled high strength steel

BJD300

0.35-0.4

YS ≥300MPa
Spray painting after parkerizing

Prepainted Steel

TSECD

0.4-0.5

Oil-resistant coating;
Anti-bacterial coating

TDX52+Z

TDX51D+AZ

0.45-0.5

 

3. Hinge

Part requirements: Proper strength and stiffness, no deformation when bearing weight.
Material requirements: Flat; YS≥200MPa
Recommended materials:


Part No.

Part No.

Type

Grade

Size(mm)

Specialty

3

Hinge

General cold rolled steel

SPCC

3.0

Available after electro-galvanization

4. Door case

Part requirements: Flat and straight, proper hardness and no deformation after foaming
Material requirements: Flat and straight hardness≥40
Recommended materials:


Part No.

Part No.

Type

Grade

Size(mm)

Specialty

4

Door case

General cold rolled high strength steel

BJD300

0.35-0.4

YS ≥300MPa
Spray painting after parkerizing

Prepainted Steel

TSECD

0.4-0.5

Oil-resistant coating;
Anti-bacterial coating

TDX52+Z

TDX51D+AZ

0.45-0.5

 

5. Bottom plate

Part requirements: No fatigue cracking under vibration; Proper stiffness for bearing weight.
Material requirements: Good drawing quality;Proper stiffness; Anti-fatigue
Recommended materials:


Part No.

Part No.

Type

Grade

Size(mm)

Specialty

5

Bottom plate

Hot-dip Galvanized steel

DX51D+Z

1.0-2.0

Anti-Corrosion
Available after spray painting

6. Compressor Motor

Part requirements:Quiet; Energy-efficient;
Material requirements: Small thickness tolerance; high magnetic induction; Low iron loss; Good drawing quality; Flat and straight.

Recommended materials:


Part No.

Part No.

Type

Grade

Size(mm)

Specialty

6

Compressor Motor

Electrical steel

B50AE-2

0.5

High-efficiency
Low energy consumption

B50A1300

B50A700

B50A300

7. Compressor Case

Part requirements: Improved welding and coating property;Pressure-resistant
Material requirements: Deep drawing quality; Uniform performance.
Recommended materials:


Part No.

Part No.

Type

Grade

Size(mm)

7

Compressor Case

Pickled steel

SPHD,SPHE

2.6-4

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