Скрыть данное сообщение

Внимание: осторожно мошенники!

От имени Чепецкого механического завода в адрес предприятий и организаций стали приходить поддельные документы (срочные уведомления, заявки на аукционы и т.п.).

Неизвестные лица рассылают фиктивные заявки о проведении аукционов (например, на право заключения договора поставки нержавеющего металлопроката для нужд АО ЧМЗ). При этом, мошенники используют подложные бланки, несуществующую печать АО ЧМЗ, ставят поддельные подписи действующих сотрудников коммерческой службы, а также подписываются сотрудниками вымышленных отделов (например, отдел закупок срочных аукционов АО ЧМЗ).

Официально заявляем, что Чепецкий механический завод к такого рода документам не имеет никакого отношения.

Убедительно просим проверять поступающую документацию, якобы направленную от имени АО ЧМЗ. Для проверки информации необходимо связываться с официальными коммерческими службами Чепецкого механического завода по тел. (341-41) 9-64-22.
Пример поддельного документа

Home/Production/Zirconium/Bars/Новости предприятия

Zirconium

Bars

Mechanical properties
Dimensions
Inspection
Packaging and marking
Transportation and storage
Zirconium crystal bars

Bars, like tubes are the necessary structural material in the production of fuel elements and fuel assemblies (FA) of nuclear reactors. Fuel plugs and various elements of FA are made of them as well.

Bars are made as cold-worked, hot-worked, cast, hot-pressed, cold rolled, forged (by cold forging method) bars of 4.5 to 81 mm in diameter, and 7400 mm in length at CMP, JSC.

Bars are made of zirconium alloys with niobium content of 1 % to 2.5 %, and of E635 alloy. Material of bars is corrosion-resistant. The bars are divided into two types: with normal and with higher accuracy according to the degree of manufacturing accuracy.

Mechanical properties of bars

Mechanical properties of bars are given in Table 1.

Table 1

Testing temperature	Mechanical properties
Testing temperature	Ultimate tensile strength, б_v, N/mm²(kgf/mm²) not less than	Yield strength, б_0,2 N/mm²(kgf/mm²) not less than	Percentage elongation % not less than
300°С	295 (30)	195 (20)	15

Bar dimensions

Geometrical dimensions of the normal accuracy and the maximum deviations of tubes are given in Table 2.

Table 2

Diameter, mm		Length, mm		Straightness tolerance of the generating line of the bar for 1m length mm, not more than	Kind of treatment
Nominal	Limit dev.	Nominal	Limit dev.		Kind of treatment
4.5	-0.10	500 to 1500	+5.0	5.0	drawn
9.0	+0.15	not less than 1500	-	1.5	rolled
9.6	+0.15	not less than 200	-	1.5	rolled
12.0	-0.30	7410	+50.0		rolled
13.2	±0.20	not less than 1500	-	1.5	rolled
14.0	±0.15	200 - aliquot	+10.0	1.5	rolled
14.3	±0.20	not less than 1500	-	1.5	rolled
20.0	±0.20	not less than 1500	-	5.0	rolled
22.0	±0.25	not less than 1500	-	5.0	rolled
23.0	±0.30	not less than 1500	-	5.0	rolled
27.0	±0.30	not less than 1500	-	5.0	rolled
30.0	±0.30	not less than 1500	-	5.0	rolled, extruded
35.0	±0.30	380 - aliquot	+5.0	5.0	rolled, extruded
62.0	+3.00	2510	+30.0	not subject to inspection	rolled, extruded
80.0	±0.50	upon request	+1.0	not subject to inspection	rolled, extruded
81.0	^+2.50_-1.50	180 - aliquot	+10.0	not subject to inspection	rolled, extruded

Geometrical dimensions with the higher accuracy and the maximum deviations of tubes are given in Table 3.

Table 3

Diameter, mm				Straightness tolerance of the generating line of the bar	Length, mm	Kind of treatment
Nominal	limit deviations
	Group А	Group B	Group C
9.6 13.0	+0.040	±0.020	-0.040	1.0	1,500 to 2,500 incl.	rolled
8.7 9.6 13.0	Все группы - 0.050					drawn

Bars of other dimensions are made by agreement with the customer. Ovality of the bars is within the tolerance for diameter.

Inspection

Bars are subject to radiographic and ultrasonic testing for the absence of discontinuities.

Packaging and marking

Bars are packed in a wooden or metal tare (boxes, containers). Bar packaging prevents them from moving inside the container, contamination, damage of the surface, and distortion of shape.

Transportation marking is performed according to GOST 14192-77 with application of manipulation signs and indication of the manufacturer, net weight, gross weight, alloy grade, number of melt (lot), diameter of bars, and the address of the customer.

Transportation and storage

Bars can be transported in packed form by all types of transport. When transporting, the bars are protected against mechanical damage, ingress of moisture and exposure to active chemical substances.

The bars are stored in packed form in closed premises, which exclude mechanical damages of bars, ingress of moisture onto them and the exposure to active chemical substances.

Zirconium crystal bars

Iodide zirconium in the form of zirconium crystal bars with pseudocrystalline surface (Van Arkel bars) is a specific type of product. This is the utmost pure zirconium. It is obtained by method of iodide refining of conventional zirconium metal turnings.

Dimensions

Max length is 1,400 mm
Max diameter is 25 mm

Impurities content (ppm or parts per million), not more than

Hf Hafnium	500*	Fe Iron	300
Si Silicon	80	Cr Chromium	200
Al Aluminium	50	Cd Cadmium	0.5
Ni Nickel	100	Li Lithium	2
Cu Copper	30	Mo Molybdenum	50
Be Beryllium	10	O Oxygen	500
Ca Calcium	200	С Carbon	80
Mn Manganese	10	N Nitrogen	50
Ti Titanium	50	Sn Tin	500
Pb Lead	50	Nb Niobium	100
B Boron	0.5

* may be less than 100 ppm

Marking

Marking is applied onto the cover of the box with water resistant paint. Marking includes a product name, batch number, and weight, net and gross, name of the manufacturer.

Package and transportation

Bars are packed in wooden boxes by 500 kg per each box. Batch size is not more than 1,000 kgs. Zirconium crystal bars can be transported in packed form by all types of transport. When transporting, the bars shall be protected from mechanical damage, precipitation and active chemical substances.