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We offer steel and steel fabrication services

We are a first-class steel service center with industry-leading technology, offering a wide range of steel and processing services to our customers.

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Alloy seamless steel pipe

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Alloy seamless steel pipe

An Alloy seamless steel pipe is used in applications which require moderate corrosion resistance properties with good durability and at an economical cost. To simply put it, alloy pipes are preferred in those areas where carbon steel pipes may fail. There are two classes of alloy steels - high alloys and low alloy steels. Pipes that constitute low alloy steels have an alloying content that ranges below 5%. Whereas the alloying content of a high alloy steel would range between 5% to about 50%. Similar to most alloys the working pressure ability of an Alloy Steel Seamless Pipe is about 20% higher than a welded pipe. So in applications that have a higher working pressure as a prerequisite, the use of a seamless pipe is justified. Though stronger than a welded pipe, the cost is much higher. Furthermore, the risk of intergranular corrosion at the heat affected weld zone is more in a welded product. The visible difference between an Alloy Steel Welded Pipe and a seamless product is the latitudinal seam along the length of the pipe. However, today, with the advancement in technology, the seam present on the Alloy Steel ERW Pipe could considerably be reduced via means of a surface treatment, such that it remains invisible to human eyes.

Alloy seamless steel pipe specification

SpecificationsASTM A 335 ASME SA 335
DimensionsASTM, ASME and API
Size1/8″NB TO 30″NB IN
Tubing Size1 / 2” OD up to 5” OD, customs diameters also available
Outer Diameter6-2500mm; WT:1-200mm
ScheduleSCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
GradeSTM A335 Gr. P5, P9, P11, P12, P21, P22 & P91, ASTM A213 – T5, T9, T11, T12, T22, T91, ASTM A691
LengthWithin 13500mm
TypeSeamless / Fabricated
FormRound, Hydraulic Etc
LengthSingle Random, Double Random & Cut Length.
EndPlain End, Beveled End, Treaded

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Alloy seamless steel pipe Alloy seamless steel pipe specification

Industries We Proudly Service

Industries We Proudly Service

Building Construction
Specific requests for on-site construction are generally required and we will work with our clients to meet their needs.
Oil & Gas
We supply high strength steel to the oil and gas industry and our equipment is customized to cut advanced high strength steel for the oil and gas industry.
Medica Equipment
TISCO supplies hospital beds and related furniture applications that require low micro surface finishes for plating applications.
Spaceflight
Our high-quality steels and aircraft-grade metals also play an important role in specialty aerospace parts.
Agriculture
TISCO has been a proud supplier of steel to the agriculture and farming industry, and we understand the ups and downs that the industry has experienced.
Heavy Equipment
We also supply several exercise equipment manufacturers with special high surface quality and high strength applications.

Can I go to your factory to visit?

Of course, we welcome customers from all over the world to visit our factory.
Q : How long is your delivery time?
A : Our daily inventory is more than 6000 tons, so for common product size, just need 5-7 work days from stocks, ifthe special size from new production, delivery 15-21 days.
Q : Does the product have quality inspection before loading?
A : Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept third party inspection.
Q : Can you accept customization?
A : Yes. Can be customized according to customer requirements
Q : How do we trust your company?
A : We specialise in steel business for years as golden supplier on Alibaba, headquarter locates in Jinan, Shandong province, you are welcome to investigate in any ways, by all means, we have CE and ISO9001 certificate, quality can be guaranteed, the most important point is that we ship enough weight as per the order.
Q : What's your supported standard of products?
A : We can supply BG/T, ASTM;, EN/DIN,; JlS and other common standards products. Customers can name their requests and we can supply accordingly.

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Beichen District, Tianjin City, China Mail us:
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Tianjin TISCO International Trade Co., Ltd.

Tianjin TIsco has extensive industry experience, an expert staff, and state-of-the-art equipment.

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