ZINC LME

CONTRACT SPECIFICATION

Trading Screen Product Name LME Zinc
Commodity Code LZHZ / ZDS
Contract Size 25 tons / lot (± 2%)
Price Quotation USD / ton
Contract type 3-month
Contract Series Daily
Trading Hours Monday - Friday
08:00 A.M- 02:00 A.M (the next day)
Minimum Price Fluctuation 0.50 USD / ton
Prompt date Daily: out to 3 months
Last Trading Day Up until the close of the first Ring the day before the prompt date
Margin As MXV required
Position Limit As MXV required
Price Limit
As MXV required
Settlement Method Deliverable
Quality Standards Standards are detailed below

QUALITY STANDARDS

In accordance with the regulations of Zinc traded on London Metals Exchange (LME).

The Zinc delivered under this contract must be:

1. Special high-grade zinc of 99.995% purity (minimum) must conform to the chemical composition of one of the following standards:

a.    BS EN 1179:2003 - 99.995% grade

b.    ISO 752:2004 - ZN-1 grade

c.     ASTM B6-12 - LME grade

d.    GB/T 470-2008 - Zn99.995 grade

2. In the shape of ingots weighing not more than 30 kilos.

3. Of brands in the LME approved list.

Quality: Zinc and Zinc Alloys – Primary Zinc

BS EN 1179:2003 (Grade Classification Z1)

Element

                           Composition (%)                      

Nominal Zinc Content

 99.995

Pb

0.003     

        Maximum

Cd

0.003

Fe

0.002

Sn

0.001

Cu

0.001

Al

0.001

Total of all these elements, exclude Zn

0.005

Quality GB/T 470-2008 Zinc Ingots (Zn99.995 grade)

Element

                Composition (%)                 

Nominal Zinc Content

99.995

Pb

0.003       

Maximum

Cd

0.002

Fe

0.001

Sn

0.001

Cu

0.001

Al

0.001

Total of all these elements, exclude Zn

0.005

Quality: ASTM B6-12 Standard Specification for Zinc (LME Grade)

Element

                       Composition (%)                

Zinc (min by difference)

99.995

Pb

0.003

Maximum

Cd

0.003

Fe

0.002

Sn

0.001

Cu

0.001

Al

0.001

   Total of all these elements, exclude Zn   

0.005

Quality: ISO 752:2004 Zinc Ingots (ZN-1 Designation)

Element

                Composition (%)             

Zinc (min by difference)

99.995

Pb

0.003

Maximum

Cd

0.003

Fe

0.002

Sn

0.001

Cu

0.001

Al

0.001

         Total of all these elements, exclude Zn        

0.005

Product infomation

Introduce

Zinc is a transition metal element, symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table of elements. Zinc is, in some ways, chemically similar to magnesium, since its ions have similar radii and have a unique oxidation number of +2 under normal conditions. Zinc is the 24th most abundant element in the Earth's crust and has 5 stable isotopes. The most common zinc ore is sphalerite, a type of zinc sulfide. The largest mines are located in Australia, Canada and the United States. Zinc production technology includes ore flotation, sintering, and finally electric current extraction.

Characteristics

Zinc is bluish-white, iridescent, and diamagnetic, although most commercial grade zinc is dull gray. The crystalline distribution of zinc is thinner than iron and has a hexagonal crystal structure with an irregular hexagonal texture, where each atom has six nearest atoms (265.9 pm away) in their own plane. and six other atoms at distances greater than 290.6 pm.
Metallic zinc is hard and brittle at most temperatures but becomes malleable between 100 and 150 °C. Above 210 °C, the zinc metal becomes brittle again and can be pulverized. Zinc conducts electricity quite well. Compared to other metals, zinc has a relatively low melting point (419.5 °C, 787.1F) and boiling point (907 °C). Its boiling point is among the lowest of the transition metals, higher only than mercury and cadmium.

Application

Zinc is the fourth most commonly used metal after iron, aluminum and copper in terms of annual production. Main applications of zinc (figures are in the US)
Galvanized (55%)
Alloy (21%)
Brass and bronze (16%)
Other (8%)

Manufacturing

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