UIC стальной рельс UIC50 UIC54

Категория: Стальные рельсы >>>
Поставщик: Qingdao,Uni-Zhongjian,Steel,Co.,Ltd.

Цена:*

Количество:

Описание и отзывы

Трекер стоимости

Месяц	Минимальная цена	Макс. стоимость
Sep-19-2025	0.1 $*	0.89 $*
Aug-19-2025	0.52 $*	0.33 $*
Jul-19-2025	0.79 $*	0.81 $*
Jun-19-2025	0.28 $*	0.17 $*
May-19-2025	0.26 $*	0.73 $*
Apr-19-2025	0.56 $*	0.6 $*
Mar-19-2025	0.16 $*	0.49 $*
Feb-19-2025	0.88 $*	0.71 $*
Jan-19-2025	0.32 $*	0.53 $*

Характеристики

Company information

Shangdong Zhongjian steel Co.LTD.

Shandong Zhongjian Steel Co.,Ltd established in 1998, is a specialized manufacturer of steel rolling, steel rails, steel sheet
pile, angle steel, channel steel,metal structure materials, machinery instruments, apparatus, and various kinds of meters.It is of
the mainstay private-owned enterprise, which has an annual output of over 120 million US dollars, and the fixed assets of more
than 250 million US dollars.

At the moment, there are two steel rolling lines including Ø650 x 4 rolling line, Ø420 x 3 rolling line and three straightening
machines, including a set of Ø800, Ø550 and Ø420, and nearly 1,000 sets of roller machines of type CA84100 and CA8480. There are
two laboratories; one is for physics and the other is for chemical analysis.

We can supply 100 types and more than 10 series of products, including I-steel, steel sheet pile, channel steel, angle steel,
light rail, heavy rail, square and flat steel and channel-band steel, which have been used for some import projects of China, such
as iron-town, coal mine, engineering machines and suspending machines. We have stable strategic cooperation relationship with
dozens of large-scale group enterprises at home.

Our products have won the title of "Shandong Brand", and the special reputation "Enterprise of Class A Taxpayer in Shandong",
"Following Contract and Abiding By Credit", "Advanced Enterprise of Exporting and Earning Foreign Exchange", and "Top 50
Enterprises in Shandong Industry". The aim of our enterprise is "quality is life, users are God".

Product Description

Factory photos

Application

Steel used for rails has a very different microstructure from the low carbon mild steel used for railway sleepers. The
microstructure of low carbon steel will be made up of ferrite and cementite. The microstructure of rail steel, however, will
consist fully of pearlite.If you look through an optical microscope at mild steel, you will see light coloured grains of soft ferrite with only a small
amount of darker coloured pearlite.
If you look at rail steel through the optical microscope you will see only pearlite. If the microphotograph of rail steel is
magnified, the pearlite is seen to be made up of lines. It is said to be lamellar. That is, it looks as if it is laminated.
The hardness and tensile strength of steel are determined by the proportion of pearlite in its microstructure. They are also
determined by the 'fineness' of the pearlite structure. The shorter the inter-lamellar spacing, the higher the hardness, wear
resistance and tensile strength.

Manufacturing Technique

Hot Rolled Rail Steel

Hot rolling is a mill process which involves rolling the steel at a high temperature (typically at a temperature over 1700° F),
which is above the steel’s recrystallization temperature. When steel is above the recrystallization temperature, it can be shaped
and formed easily, and the steel can be made in much larger sizes. Hot rolled steel is typically cheaper than cold rolled steel
due to the fact that it is often manufactured without any delays in the process, and therefore the reheating of the steel is not
required (as it is with cold rolled). When the steel cools off it will shrink slightly thus giving less control on the size and
shape of the finished product when compared to cold rolled.

SHANDDONG ZHONGJIAN STEEL CO.

TAKUDZWA XIN : SALES REPWHATS APP :+86 13061487269
WECHAT :+86 13061487269
WEBSITE :: www.sdzjsteel.com