Dalian Commodity Exchange (Weibo) Coke futures contract

Transaction type	smelter coke
Trading unit	100t/hand
Bidder	RMB/ton
minimum price change	1 yuan/ton
Limit range	4% of the settlement price on the previous trading day
Contract month	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, November, December
Transaction time	9:00~11:30 am and 13:30~15:00 pm from Monday to Friday
Last Notice Day	The 10th trading day of the contract month
Last delivery date	The second trading day after the last trading day
Delivery Grade	Coke delivery quality standard of Dalian Commodity Exchange
delivery points	Dalian Commodity Exchange Coke Designated Delivery Warehouse
Minimum transaction margin	5% of the contract value (currently 6%)
delivery methods	physical settlement
Transaction code	J
Listed Exchange	Dalian Commodity Exchange

Coke delivery quality standard of Dalian Commodity Exchange

　　(F/DCE J001－2011)

1 Subject Content and Scope of Application

1.1 This standard specifies the coke quality requirements, test methods, inspection rules and transportation requirements for delivery in Dalian Commodity Exchange.

1.2 The coke specified in this standard refers to the metallurgical coke used for blast furnace ironmaking, which is obtained from coking coal as the main raw material by high-temperature carbonization and other methods.

1.3 This standard is applicable to delivery standards and substitutes of coke futures contracts of Dalian Commodity Exchange.

2 Normative references

The clauses in the following documents become clauses of this standard through reference in this standard. For dated references, all subsequent amendments (excluding corrections) or revisions are not applicable to this standard. For undated references, the latest version is applicable to this standard.

GB/T 1996 Metallurgical Coke

GB/T 1997 Coke Sampling and Preparation

GB/T 2001 Coke Determination of Industrial Analysis

GB/T 2005 Metallurgical Coke Determination of Coke Fin Content and Sieve Composition

GB/T 2006 Metallurgical Coke Determination of Mechanical Strength

GB/T 2286 Coke Determination of Total Sulfur Content

GB/T 4000 Coke Reactivity and Post reaction Strength Test Method

GB/T 8170 Rules for Rounding off Numerical Values

GB/T 9977 Terms of Coking Products

3 Terms and definitions

The terms and definitions established in GB/T 9977 are applicable to this standard.

4 Quality requirements

4.1 Standard quality requirements

index	Quality standard (%)
Ash A d	≤12.5
Sulfur S t,d	≤0.65
Crushing strength M forty	≥82
Wear resistance M ten	≤7.5
Reactive CRI	≤28
Post reaction strength CSR	≥62
Volatile matter V daf	≤1.5
Coke powder (<25mm) content	Warehousing ≤ 5.0	Delivery ≤ 7.0
Particle size (≥ 25mm)	Warehousing ≥ 95.0	Delivery ≥ 93.0

4.2 Quality difference and premium of substitutes

index	Allowable range (%)	Liter discount (yuan/ton)
Ash A d	>12.5 and ≤ 13.0	3% price deduction for every 0.1% increase
	>13.0 and ≤ 13.5	Deduct 5% for every 0.1% increase
	>13.5 and ≤ 14.0	10% price deduction for every 0.1% increase
Sulfur S t,d	>0.65 and ≤ 0.70	3 price deduction for every 0.01% increase
	>0.70 and ≤ 0.75	Deduct 5% for every 0.01% increase
	>0.75 and ≤ 0.80	10% off for every 0.01% increase
Post reaction strength CSR	≥ 55 and<62	50% of the price is deducted for any item; Multiple non accumulation deduction
Reactive CRI	>28 and ≤ 32
Crushing strength M forty	≥ 78 and<82
Wear resistance M ten	>7.5 and ≤ 8.5

4.3 Moisture Mt is required to be ≤ 5.0%. If the moisture content is greater than 5.0%, the excess part shall be rounded to one decimal place for weight deduction (for example, the measured moisture is 6.32%, and the weight deduction is 1.3%).

4.4 When delivering out of the warehouse, if the coke content or particle size does not meet the delivery standard of standard product quality requirements, the part that exceeds the coke content standard or is less than the particle size standard shall be rounded to one decimal place, The designated delivery warehouse shall calculate the compensation amount according to the settlement price of the coke contract in the latest month on the trading day before the completion of the delivery (for example, the delivery standard of coke content is not more than 7%, the measured value is 8.23%, rounded to one decimal place, and the compensation amount is 1.2% of the corresponding goods payment).

5 Test methods and inspection rules

5.1 The sample shall be taken and prepared in accordance with the provisions of GB/T 1997.

5.2 The coke content and particle size shall be determined according to the provisions of GB/T 2005.

5.3 The moisture, ash and volatile matter shall be determined according to the provisions of GB/T 2001.

5.4 The total sulfur content shall be determined according to the provisions of GB/T 2286.

5.5 The crushing strength M40 and abrasion resistance M10 shall be determined in accordance with the provisions of GB/T 1996.

5.6 The determination of reactivity and post reaction strength shall be carried out in accordance with the provisions of GB/T 4000.

5.7 Rounding off of values shall be in accordance with GB/T 8170.

6 Transportation requirements

Coke shall be transported in clean train carriages, car carriages, ship cabins or other means of transport.

7 Additional instructions

This standard is interpreted by Dalian Commodity Exchange.