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Our product range contains a wide range of JSI Galume
Introduction
JSI Galume is based on the technology of manufacturing a very new coated product. This alloy coating consists of 55% Aluminum and 43% Zinc and the balance contains Silicon around 1.5% to affect excellent adhesion to the steel substrate.
| Galume Production Technology: | |
| This coating is given on the cold rolled substrate processed from selective Hot rolled coils with selective chemistry for getting the desired mechanical properties specified by the customers. The Galume product is made by the continuous hot dip process. The cold rolled coils are welded end to end and passes through 3 stage degreasing section for achieving excellent cold rolled strip surface. The coating system is 2 pot system- pre-melting pot and the main coating pot. The bath chemistry is continuously controlled and monitored at the pre melting pot which continuously feeds the main coating pot through the refractory tunnel. | |
| Quality control: | |
| We test in full fledged laboratories with test equipments- Emission spectroscope for the chemical analysis, computerized Universal testing machine with stress-strain graph for tension tests, surface finish tester, Hardness testers using both Vickers and Rockwell scales, LFQ testing machine, Cupping tester, on line Radiometric and off line chemical lab for coating mass, salt spray tester for corrosion resistance, and Humidity chamber. |
| Parameters | Technical details/specifications/Stds |
|
Product name |
JSI RAINBOW PLUS |
|
Reference standard |
ASTM 755 |
|
Other containing standards |
JIS 3322, ECCA |
|
Strip thickness mm |
0.20 to 1.2 (< 0.20 & above 1.2 in special cases) |
|
Strip width mm |
900 to 1250 |
|
Substrate material |
Galume coating as per ASTM A 792/A 792M with steel base as per ASTM std |
|
Substrate Coating mass gms/m2 Substrate coating mass class |
70 to 165 AZM 150/165 as per ASTM std |
|
Grade designation |
Gr 50/ Gr 80/CS type A, B as per ASTM std |
|
Yield strength Mpa Tensile strength Mpa |
340 min for Gr 50 & 550 min for Gr 80 |
|
Paint type |
RMP/HDP/SMP/PVDF |
|
Paint coating thickness (DFT) |
Top coat 18 to 22 microns (+5 microns primer) |
|
Digital DFT meter accuracy |
Accuracy +/- 2% of reading) as per ASTM A 153 |
|
Pencil hardness |
H or Harder |
|
Gloss |
15-80% at 60 degrees ASTM D 523 |
|
Resistance to chalking QUV |
2000 HRS –rating =4 for PVDF, |
|
Resistance to corrosion |
1000 HRS with blister density =2, creep-age =2 mm |
|
Resistance to Humidity |
1000 HRS blister density = 2 (ASTM D 2247) |
|
Resistance to color change QUV- ASTM G 53 |
2000 HRS (delta E = 5 unit) for PVDF |
|
Flexibility |
4 T- (ECCA) - no cracking |
|
Resistance to abrasion |
=20 mg as per 100 cycles |
|
Resistance to Acid/solvents |
No discoloration/no blistering- ASTM D 1308 |
|
Product certification |
All products are accompanied with MTC and packing list. |
|
Quality System |
ISO 9001 - 2000 |
S. Alexander (J.s.international)
31/1100 Baba Khadag Singh Marg, Baba Kharak Singh Marg, Delhi - 110092
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