Packing | GPT Steel Industries

Packing

Our packaging is designed considering environmental variations and transportation needs. It prevents transit damages and any seepage of water during transit to coils or sheets.

Packing Specification:

Specification for TINPLATE Coil (EYE TO SKY)

Standard specification for TINPLATE Coil (EYE TO SKY):

S. No.	Packing materials	Standard Specification
1.	MS sleeve	Sleeve of HR sheet 3 mm thickness
2.	LDPE Sheet	100 gsm
3.	VCI Rust proof paper	175 gsm
4.	Top Packing sheet	0.4 - 0.6 mm thickness GP/CCS
5.	MS Ring (ID Protector )	2 mm HR Sheet
6.	Side Disc Cardboard	2 mm Thickness approx. 500 GSM
7.	Cardboard Edge Protector OD	Corrugated angle 75x75 mm (2mm Thickness)
8.	Side Metallic Disc	0.60 mm GP/CCS
9.	Metallic edge protector OD	Corrugated 0.60 mm thickness GP/CCS
10.	Strapping with Seals Six Straps through the Eye and three straps on the OD with use of seals & PVC protectors beneath the seal.	Carbon Steel 31.75 x 0.79 mm Thickness
11.	Placement and strapping of coils in Eye To Sky position on wooden pallets, with two high tensile straps of 32 mm x 0.79 mm and felt cloth on the pallet for cushioning.	Carbon Steel 31.75 mm x 0.79 mm Wooden pallets table top design with 3 rafters of size ( 100mm x 100mm) along the length with two high tensile straps of 32 mm x 0.79mm along with the pallets perpendicular to each other. Felt cloth on pallets for cushioning
12	PVC Tape	50 mm Wide

Coil weight : 5 to 10 MT

Width of the coil : 600 to 1015 mm

Tinplate coil packing background

HISTORICAL BACKGROUND

Since the inception of packaging tinplate coils for shipment, two considerations have always been paramount. First, this high-end valued steel product must be protected from damage in shipment and handling. Secondly, the tinplate must be protected from corrosion until processed by the customer.

Packaging remained basically unchanged for nearly twenty-five years using various combinations of kraft paper, corrugated kraft, reinforced kraft papers with polyethylene laminates and coating, kraft fiberboard and metal fabricated containers. Due to the thin gauges of tinplate, large coils have been, and continue to be, shipped eye vertical on platform skids to prevent coil collapse and edge damage which could occur if shipped in rolling position.

End use applications make traditional methods of corrosion prevention such as slushing oils not feasible, and tinplate is generally considered as "dry" metal for shipment. To provide this "dry" packaging environment and avoid dew point condensation during storage and shipment, shippers specified and used materials that would prevent penetration of moisture from without while allowing humidity within the package to escape through the breathable tinplate wrap. Kraft paper, corrugated and fiberboard; being hygroscopic, i.e. able to adsorb or condense moisture from the atmosphere, served a dual role with mixed results. The fibrous material could adsorb excess moisture to saturation, but also gave up moisture with temperature variation and all without difficulty except for conditions when the atmosphere reached dew point or temperature at which condensation would occur. Through experience and planning, tinplate producers learned to cope with changing atmospheric conditions

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