Products

Generally manufactured with hot dip zinc coated(GI) steel or an aluzinc/galvalume(AZ/GL) substrate, the coil is processed on a continuous paint coating line (CCL) where in the surface of the metal is cleaned, pre-treated and applied with various layers of organic coatings.
At QINGDAO SINCERELY STEEL Our product range of color coated material combines the strength and form-ability of steel with the corrosion resistance of zinc and paint. We have the widest range of colors in the market. Further,shades and degree of gloss can also be tailored to suit your requirement.QINGDAO SINCERELY STEEL's Color Coated Prepainted Galvanized Steel Coils & Prepainted Aluzinc Steel Coils (PPGI / PPGL ) could be supplied as coils, sheets, slit strips or even profiled sheets. Our Installed Annual Coil Coating Capacity is 150,000 Metric Tonnes in thicknesses range of 0.1mm – 2.0mm (for Prepainted Galvanized/Aluzinc Coils) wih 650mm-1350mm width range.

QINGDAO SINCERELY Steel is the leading manufacturer of high quality Prepainted Aluminium Coils in CHINA. With it’s ULTRA-MODERN ISO 9001:2015 Approved Coil Coating Facility Located in Shandong Industrial Park/City Near Qingdao Port in China , and it’s network of coil service centers in the Region QINGDAO SINCERELY STEEL is the industry leader for Prepainted Aluminium Coils.Our Products are PROUDLY “MADE IN CHINA” and Exported to All Countries like Saudi Arabia,Kuwait,Oman,Bahrain.Jordan and also to African and European Countries.

As per types of surface coating of paint, color coated aluminum coils can be divided into polyester (PE) coated aluminum coil, fluorocarbon (PVDF) coating aluminium coil and Epoxy coated aluminum coil.

According to the thickness of the coating, it can be divided into single-coated aluminium coil (4-20 microns); double-coated aluminum coil (25 to 28 micron) and triply-coated aluminum coil (35-38 micron).

Coated aluminum coil (PPAL) is widely used in the roofing and cladding system, ceiling system, curtain wall plate, shutter, gutter, composite panel, can, home appliances board and embossed aluminium coil.

Aluzinc steel is the composition of coating 55% aluminum, 43.4 % zinc and 1.6 % silicon. The coating is also applied by means of a continuous hot dip galvanizing process. Aluzinc-zinc coating offer an excellent corrosion resistance resultant from the barrier effect of the aluminum on the surface and the sacrificial protection of zinc. Aluzinc has a clean, natural and bright silvery surface. The surface includes small spangles that give it a lustrous and striking appearance as light conditions change.

Aluzinc is the world’s fastest growing metallic coating. This is due to the fast of combined strength, formability and recyclability of steel with the proven long term anti- corrosion performance of the AI-Zn alloy coating. This combination results in an economical product with superior eco-friendliness attributes of durability, recyclability, energy efficiency and scarce resource utilization.

We manufacture Continuously Hot Dip Galvalume (GL) Coils as per the below Standards

SISCO's hot dipped galvanized steel coils are used in multiple applications and by many types of industries, including the automotive, construction, and appliance manufacturing where rust-resistance is of utmost importance to the customer. Because non-corrosive hot dipped galvanized steel coils are less costly than stainless steel, many industries rely on their reliable use and more affordable cost. A strongly bonded zinc coating is among the most effective and economical methods for protecting bare steel from corrosion. SISCO's galvanized steel coils can be found in a multitude of products that range from washing machines, refrigerators, flashing, duct-work, car parts, drum containers, decking, HVAC systems, and much more. Our hot dipped galvanized steel products are used in applications designed for the residential, commercial, and industrial sectors.

Stone coated metal roofing blends the strength of granite and steel with the traditional styles of shingles, shakes, and tiles to deliver a weather-resistant system that improves commercial property values.

·Base Material :- Full Hard with Hardness Range HRB (70-90) as per ASTM/JIS

·Zinc Coating :- 60 gsm to 300 gsm

·Most common widths in mm(after corrugation) : 602,720, 740, 762, 780, 800, 840, 910, 1100

·Thickness : 0.14 mm to 0.80 mm

·Length(in mm) : 1830, 2135, 2440, 2745,3000, 3050, 3660, 4270, 4880 or as per requirement.

·Bundle Packing : 800-1100 sheets/bundle or as per customer requirement.

·Material Grade: SPCC, MR

·Temper(BA&CA): T1, T2, T3, T4, T5, DR8, DR9

·Tin Coating: 1.1~11.2g/㎡

·Thickness: 0.15~0.70mm (Tolerance: ±0.01 mm)

·The Coil’s Inside Diameter: 420 / 508mm

·Coil Weight: 1~3 MT

·Surface Finish: Bright, Stone, Silver, Matte, Gold Lacquered

CHEMISTRY:

Carbon .15 max

Manganese .60 max

Phosphorus .035 max

Sulphur .040 max

MECHANICAL PROPERTIES:

Yield Strength = 38,000 PSI min

Tensile Strength = 55,000 PSI min

What is a Steel Purlin?

Cold-Formed Steel Purlins are longitudinal beams installed to brace together trusses or rafters. Its primary function is to transfer external loads applied on the roof to the top chord of the truss. The design of purlins is idealized from a pin-connected structure where the distance of the trusses is treated as the span and its ends as its joints. Gravity and wind loads are commonly applied on the purlin and will cause the member to sag. In order to provide lateral support for the purlins, sag rods are added on discrete points.

Aside from being used in roofing systems, purlins can also be applied as girts for wall cladding. The image below shows a typical steel framing applied with purlins.

What Is Zam?

Zn-Al-Mg is a new type of highly corrosion-resistant coated steel sheet with a coating composition consisting of zinc as the main substrate in combination with aluminum (about 11%), magnesium (about 3%) and a trace amount of silicon.Adding Al, Mg, and Si to it, the composite effect of these added elements improves corrosion resistance.Compared with hot-dip galvanized steel sheet and hot-dip galvanized-55% aluminium alloy steel sheet, it has less adhesion but equal corrosion resistance.

Features Of Hot Dip Zn-Al-Mg Alloy Coated Steel

· Longer service life than other coated products

· Cut edge rust protection - the hallmark feature of ZAM

· Thinner coating yet more protection - ecologically friendly

· Excellent in severe environments - especially coastal and agricultural

· Eliminates the need for post dip (batch) galvanizing

· Superior formability due to coating characteristics

· Cost savings through longer service life and reduced maintenance

· Bridges the product gap between heavily coated galvanized and costly stainless steel