Wholesale China factory High quality 316 347 Stainless Steel Round Pipe Manufacturer and Supplier

China factory High quality 316 347 Stainless Steel Round Pipe

Short Description:

Durable and corrosion‑proof, stainless‑steel tubing maintains stable performance within harsh surroundings. Heat‑resistant and immune to most chemical erosion, its glossy surface cleans effortlessly for food, chemical and medical‑equipment fields.
Great machinability, attractive finish, eco‑friendly traits plus reliable impact and crack resistance make stainless‑steel pipes perfect for construction and diverse industrial‑grade uses.

Inspection: SGS, TUV, BV, Factory Inspection

Standard: AISI,ASTM,DIN,JIS,BS,NB

Model Number: 309 ,310,310S,316,347,431,631,etc.

Outer Diameter: Customzied

Processing Service: Bending, Welding, Decoiling, Punching, Cutting, Moulding

Section Shape: Round / Square / Rectangular

Surface Finish: BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D

Delivery Time: 3-15 days (according to the actual tonnage)

Port Information: Tianjin Port, Shanghai Port, Qingdao Port, etc.

Payment terms: T/T (30%DEPOSIT) Western Union

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Product Detail

Product Tags

Product Detail

tem	316 347 Stainless Steel Pipe
Standard	JIS, AiSi, ASTM, GB, DIN, EN
Place of Origin	China
Brand Name	ROYAL
Type	Seamless / welded
Application	Chemical industry, mechanical equipment
Processing Service	Bending, Welding, Decoiling, Punching, Cutting, Moulding
Technique	Hot rolled/cold rolled
Payment terms	L/C T/T (30%DEPOSIT)
Price Term	CIF CFR FOB EX-WORK

We supply stainless‑steel pipes with multiple surface finishes including 2B mill‑finished, BA bright‑annealed, No.4 brushed, 8K mirror‑polished, matte, etched and pickled surfaces.

Every surface builds up a tight chromium‑rich passive film for superior anti‑corrosion capability. Dense surface‑layer structure fights rust, moisture, salt spray, acid‑base liquids and industrial chemical erosion.

Smooth finishes cut residue adhesion, stop corrosive deposits from gathering on the pipe exterior. Even under long‑run harsh‑environment service, the surface stays intact, stain‑free and oxidation‑resistant, well‑suited for chemical processing, food sanitation, marine‑related, medical and construction piping systems.

Main Application

Thanks to reliable corrosion‑proof property, smooth customizable finishes and strong structural stability, our stainless‑steel pipes fit widespread industrial scenarios.

Food & beverage: sanitary pipeline for beverage delivery, dairy processing and food‑grade conveying

Chemical industry: transport pipelines for acid, alkali and corrosive chemical media

Medical & pharmaceutical: sterile tubing for drug‑making equipment and hospital plumbing

Marine engineering: salt‑resistant piping for offshore facilities and seawater circulation

Water treatment: purified‑water pipelines, drinking‑water supply and sewage disposal systems

Construction & hardware: decorative pipework, handrails and structural framework

Petrochemical, heat‑exchange and high‑temperature equipment under harsh working‑conditions

Note:
1.Free sampling, 100% after-sales quality assurance, Support any payment method;
2.All other specifications of round carbon steel pipes are available according to your requirement (OEM&ODM)! Factory price you will get from ROYAL GROUP.

China Stainless Steel Pipe Chemical Compositions

Chemical Composition %
Grade	C	Si	Mn	P	S	Ni	Cr	Mo
201	≤0 .15	≤0 .75	5. 5-7. 5	≤0.06	≤ 0.03	3.5 -5.5	16 .0 -18.0	-
202	≤0 .15	≤l.0	7.5-10.0	≤0.06	≤ 0.03	4.0-6.0	17.0-19.0	-
301	≤0 .15	≤l.0	≤2.0	≤0.045	≤ 0.03	6.0-8.0	16.0-18.0	-
302	≤0 .15	≤1.0	≤2.0	≤0.035	≤ 0.03	8.0-10.0	17.0-19.0	-
304	≤0 .0.08	≤1.0	≤2.0	≤0.045	≤ 0.03	8.0-10.5	18.0-20.0	-
304L	≤0.03	≤1.0	≤2.0	≤0.035	≤ 0.03	9.0-13.0	18.0-20.0	-
309S	≤0.08	≤1.0	≤2.0	≤0.045	≤ 0.03	12.0-15.0	22.0-24.0	-
310S	≤0.08	≤1.5	≤2.0	≤0.035	≤ 0.03	19.0-22.0	24.0-26.0
316	≤0.08	≤1.0	≤2.0	≤0.045	≤ 0.03	10.0-14.0	16.0-18.0	2.0-3.0
316L	≤0 .03	≤1.0	≤2.0	≤0.045	≤ 0.03	12.0 - 15.0	16 .0 -1 8.0	2.0 -3.0
321	≤ 0 .08	≤1.0	≤2.0	≤0.035	≤ 0.03	9.0 - 13 .0	17.0 -1 9.0	-
630	≤ 0 .07	≤1.0	≤1.0	≤0.035	≤ 0.03	3.0-5.0	15.5-17.5	-
631	≤0.09	≤1.0	≤1.0	≤0.030	≤0.035	6.50-7.75	16.0-18.0	-
904L	≤ 2 .0	≤0.045	≤1.0	≤0.035	-	23.0·28.0	19.0-23.0	4.0-5.0
2205	≤0.03	≤1.0	≤2.0	≤0.030	≤0.02	4.5-6.5	22.0-23.0	3.0-3.5
2507	≤0.03	≤0.8	≤1.2	≤0.035	≤0.02	6.0-8.0	24.0-26.0	3.0-5.0
2520	≤0.08	≤1.5	≤2.0	≤0.045	≤ 0.03	0.19 -0. 22	0. 24 -0 . 26	-
410	≤0.15	≤1.0	≤1.0	≤0.035	≤ 0.03	-	11.5-13.5	-
430	≤0.1 2	≤0.75	≤1.0	≤ 0.040	≤ 0.03	≤0.60	16.0 -18.0

Stainless Steel Pipe Surface Finish

Industrial development changes rapidly, and stainless steel pipes also follow industrial development to meet the development needs of various industries. The following are the wide applications of stainless steel round pipes in various industries:

Water supply and drainage pipes, irrigation systems
Water supply and drainage pipeline engineering is for the transportation and distribution industry. Drinking water and collection. Transportation and discharge of industrial wastewater. Domestic sewage and rainwater pipe (channel) system engineering.
Engineering investment accounts for the majority of total engineering investment. Sprinkler irrigation systems are an important part of agricultural water use. The physical and chemical properties of stainless steel water pipes meet the requirements of modern agricultural water treatment.

Process of Production

These connection methods have different application scopes according to their different principles, but most of them are easy to install, strong and reliable. The sealing ring or gasket material used for the connection is mostly made of silicone rubber, nitrile rubber and EPDM rubber that meet national standards, which relieves users from worries.

Packing and Transportation

1. Plastic Sheet Packaging

Plastic sheet wrapping is a standard protective solution for stainless steel pipe transportation. It effectively shields pipe surfaces from abrasion, scratches and external contamination. Meanwhile, it delivers reliable moisture-proof, dust-proof and anti-corrosion performance, keeping the pipes in pristine condition during transit and storage.

2. Tape Packaging

Tape packaging is a cost-effective, simple and practical packing method for stainless steel pipes, adopting transparent or white adhesive tape for wrapping. Apart from protecting pipe surfaces from minor damage, it reinforces the overall stability of pipe bundles. This greatly prevents pipe displacement and deformation caused by extrusion and vibration during transportation.

3. Wooden Pallet Packaging

Wooden pallet packaging is widely applied for large-size stainless steel pipes during transportation and storage. Pipes are firmly fastened on pallets with steel strapping, which provides sturdy anti-collision protection. It effectively avoids bending, deformation and other mechanical damages that may occur in long-distance transit, ensuring intact product appearance and performance.

4. Carton packaging

Carton packaging is the preferred option for small-sized stainless steel pipes. Featuring lightweight and easy handling, this packaging method not only protects pipe surfaces from scratches and dirt, but also facilitates classified storage, counting and logistics management, greatly improving operational efficiency for batch small-pipe shipments.

5. Container Packaging

Container loading is the mainstream packaging solution for large-volume export orders of stainless steel pipes. Enclosed container transportation eliminates external interference such as collision, offset and stacking pressure. It guarantees stable and safe delivery of pipes during long-distance sea transportation, meeting strict international export logistics standards.