Seamless Stainless tube 304 304l

Stainless steel pipe is a long, hollow, round steel product primarily used as a conduit for transporting fluids. It is widely applied in industrial pipeline systems across sectors such as petroleum, chemicals, healthcare, food processing, light industry, and mechanical instrumentation, as well as in various mechanical structural components. These pipes are produced from acid-resistant and heat-resistant steel billets through heating, perforation, sizing, hot rolling, and cutting processes. Moreover, with equal bending and torsional strength, they are lighter in weight, making them suitable for manufacturing mechanical parts and engineering structures. They are also commonly used in furniture and kitchenware.

Specifications	Stainless steel square pipe
Width	2*2~350*350mm
Thickness	0.1mm~35mm
Length	2000mm-12000mm etc
Standard	ASTM、 AISI JIS、 GB.  DIN、 EN
Surface	BA, 2B、 NO.1, NO.4、 4K、 HL, 8K
Certification	ISO、 SGS, BV
Grade (ASTM UNS)	304, 304L 321, 316, 316L, 317L, 347H, 309S, 310S, 904L, S32205,2507, 254SMOS, 32760, S31703, S31603,316Ti, S31635, S31254, N08926, 2205, S32205, S31008, S30908, S32750, S32760, 630etc

Stainless steel tube classification

There are two types of seamless steel pipes and welded steel pipes (seamed pipes). According to the cross-sectional shape, it can be divided into round tubes and special-shaped tubes. Round steel tubes are widely used, but there are also some square, rectangular, semicircular, hexagonal, equilateral triangle, octagonal and other special-shaped steel tubes.

For steel pipes under fluid pressure, a hydraulic test is required to check their pressure resistance and quality. It is qualified if no leakage, soaking or expansion occurs under the specified pressure. Some steel pipes also need to be crimped according to standards or requirements , Flaring test, flattening test, etc.

Seamless stainless steel pipe is also called stainless steel seamless

Round steel refers to a solid strip of steel with a circular cross section. Its specifications are expressed in millimeters of diameter, such as "50" means a round steel with a diameter of 50 mm.

Round steel is divided into three types: hot rolled, forged and cold drawn. The specifications of hot-rolled round steel are 5.5-250mm. Among them: 5.5-25 mm small round steel is mostly supplied in bundles of straight strips, which are often used as steel bars, bolts and various mechanical parts; round steel larger than 25 mm is mainly used for manufacturing mechanical parts or seamless steel pipe billets.

45# round steel is divided into three types: hot rolling, forging and cold drawing. The specifications of hot-rolled round steel are 5.5-250 mm.

Stainless steel pipe is a hollow, long strip of steel. Steel billets of acid-resistant and heat-resistant grades are selected and processed by heating, piercing, sizing, hot rolling and cutting. It has excellent bending and torsional strength and is light in weight. Widely used in petroleum, chemical, medical, food, light industry, mechanical instruments and other industrial pipelines and mechanical structural components. It is also used as a furniture and kitchenware material.

FAQ：

Q: What products does your company have?

A: Our company produces all kinds of galvanized sheets, coils, tubes, steel strips, galvanized sheets, coils, steel strips, PPGI/PPGL, roof panels, etc. Production experience, support customization.

Q: What are the advantages of your company?

A: (1): Prime quality and Competitive price.

   (2): Excellent experiences with after-sale service.

   (3): Every process will be checked by responsible QC which insures every product's quality.

   (4): Professional packing teams which keep every packing safely.

   (5): Samples can be provided as your requirements.

Q: What is your terms of payment ?

A: Can be negotiated by both parties. If you have another question, pls feel free to contact us as below.

Q: What about your price?

A: Our price is very competitive.

    Pls feel free to contact us if you are interested in our products.

Q: How long is your delivery time?

A: Stock steel/Steel for simple cutting/Small amount of general standard steel: about 5-20 days for delivery; Custom steel/bulk steel: about 15-30 days for delivery. Contact us for specific delivery times.