الصاج المجلفن على الحامي
يتم تصنيع الصلب المجلفن بالغمس الساخن من صفائح الصلب التي تُغمر في حمام من الزنك المصهور، مما يُنشئ طبقة من الزنك على السطح. يتم الاعتماد بشكل أساسي على عملية الجلفنة المستمرة، حيث تُغمر اللفائف المدرفلة على البارد في الزنك المصهور.
الوصف
مقاييس الطلاء:
| Coating designation | Coating thickness (oz/ft²) | Coating thickness (g/m²) |
|---|---|---|
| G40 | 0.4 | 120 |
| G60 | 0.6 | 180 |
| G90 | 0.9 | 275 |
| G115 | 1.15 | 350 |
| Zinc Coating (Both Sides) | ASTM A653 | ASTM A653 - Single Spot | EN 10142 | EN 10142 - Single Spot | JIS G 3302 | JIS G 3302 - Single Spot |
|---|---|---|---|---|---|---|
| Zn Coating Mass(gm) | Triple Spot Test | Single Spot Test | Triple Spot Test | Single Spot Test | Triple Spot Test | Single Spot Test |
| 90 | 90 | 75 | - | - | - | - |
| 100 | - | - | 100 | 85 | 100 | 85 |
| 120 | 120 | 90 | - | - | 120 | 102 |
| 140 | - | - | 140 | 120 | - | - |
| 180 | 180 | 150 | - | - | 180 | 153 |
| 200 | - | - | 200 | 170 | 200 | 170 |
| 275 | 275 | 235 | 275 | 235 | 275 | 234 |
| 350 | 300 | 300 | 350 | 300 | 350 | 298 |
الخصائص الكيميائية:
| Steel designation | Maximum percentage of element by mass | C% | Mn% | P% | S% | Cu% | Ni% | Cr% | Mo% |
|---|---|---|---|---|---|---|---|---|---|
| Element | C% | Mn% | P% | S% | Cu% | Ni% | Cr% | Mo% | |
| Commercial quality (CQ) | 0.10 | 0.60 | 0.03 | 0.035 | 0.20 | 0.20 | 0.15 | 0.06 |
الخصائص الميكانيكية:
| Mechanical Properties ASTM A 653 | Yield Strength | Tensile Strength | % Elongation (Minimum) |
|---|---|---|---|
| Product Designation | MPa | MPa | All Thickness |
| CS Type A | (170 – 380) | - | >20 |
| CS Type B | (205 – 380) | - | >20 |
| CS Type C | (170 – 410) | - | >20 |
| Mechanical Properties JIS G 3302 | Yield Strength | Tensile Strength | % Elongation (Minimum) 0.40 – 0.60 | % Elongation (Minimum) 0.60 – 1.00 | % Elongation (Minimum) 1.00 – 1.50 | % Elongation (Minimum) 0.25 – 0.40 |
|---|---|---|---|---|---|---|
| Product Designation | N / mm2 | N / mm2 | Nominal Thickness | Nominal Thickness | Nominal Thickness | Nominal Thickness |
| SGCC | - | - | - | - | - | - |
| SGCH | - | - | - | - | - | - |
| SGCD1 | - | 270 Min | - | 34 | 36 | 37 |
| SGC340 | 245 Min | 340 Min | (20) | 20 | 20 | 20 |
| SGC570 | 560 Min | 570 Min | - | - | - | - |
| Mechanical Properties ASTM EN 10142 | Yield Strength | Tensile Strength | % Elongation (Minimum) <0.70 mm | % Elongation (Minimum) 0.7mm – 1.5 mm |
|---|---|---|---|---|
| Product Designation | N / mm2 | N / mm2 | Nominal Thickness | Nominal Thickness |
| DX51D | - | 270 – 500 | 20 | 22 |
| DX52D | 140 – 300 | 270 – 420 | 24 | 26 |
اختبار الانحناء:
| Product thickness (mm) | Number of bends (mm) |
|---|---|
| 0.30 – 0.80 | 8 |
| 0.80 – 1.20 | 5 |
| 1.20 – 2.00 | 3 |
معالجة السطح:
| Treatment | Description |
|---|---|
| Chemical Passivation | (C):Normal Chromate Coating |
| Oiling | (O): Protective Anti-rust oil |
| Surface Quality | Skin passed |
معلومات إضافية
| Width | 800mm to 1250mm |
|---|---|
| Thickness | 0.3mm to 4.00mm |
| Grades | SGCC SGCH SGC340 SGHC SGH340 SGH400 DX51D S400GD S500GD S550GD |
| Coil ID | 610mm |
| Coating Width | 100-350g/m2 |
| Surface Finish | Regular Spangle ,Zero Spangle |
| Surface Treatment | Chromated /oiled(optional) |
| Coil Weight | 4-12Mt |
| packaging | Domestic supply (G.I): • Rust proof paper, VCI. • Inner and outer rings. • Edge protectors. Export Packaging (G.I): • Rust Proof Paper, VCI. • Cardboard body, edge protectors. • Steel body wraps. • Steel edge protectors (outer). • Steel ring protector (inner). |