
Gi Pregalvanzied Welded Square Steel Pipe
Stainless Steel Pipe Application: Petroleum, petrochemical, refinery, boiler, chemical, machinery, power, shipbuilding, paper-making, pharmacy and food, etc.
We constantly explore and innovate, constantly improve the performance of products in R & D and design, and constantly launch more high-quality Concrete Cone Electric Pole Manufacturing Equipment, High Strength Prestressed Steel Wire, Stainless Steel Pipe suitable for enterprises and the public. We will further improve the quality of talent to promote the distribution of talent structure to match the business development, and increase our industry leading edge. We build the ideological defense line of not breaking the bottom line, establish the firm belief power, and inspire the staff to struggle and strive for entrepreneurial enthusiasm.
Product Introduction
Stainless Steel Pipe is a sanitary stainless steel pipe made of high-quality materials. It is strong and durable. It has precise dimensions and complete specifications. It has many uses, and is often used in petroleum, shipbuilding, chemical, oil refining, machinery, pharmaceuticals, food and other fields.
Features
Stainless Steel Pipe has standard dimensions and good straightness. It has a variety of specifications to choose from, and it can be cut arbitrarily with a machine, which can meet your various needs. It is of up to standard quality, sturdy and explosion-proof, and absolutely reliable.
Details
OD range: 6mm-914mm(0.24"-36"); WT range: 0.5mm-50mm(0.02"-1.97")
Stainless Steel Pipe Application: Petroleum, petrochemical, refinery, boiler, chemical, machinery, power, shipbuilding, paper-making, pharmacy and food, etc.
1) Material: Products and Grades
Item No. | Type | Grade |
1 | Austenitic Stainless Steel | TP304/304L, TP304LN, TP304H, S30432, TP310S/310H, TP310HCBN, S31050, TP316/316L, TP316LN, TP316TI, TP316-LMOD, TP317L, TP321, TP321H, TP347, TP347H, TP347HFG |
2 | Super Austenitic Stainless Steel | N08904, N08367, S31254 |
3 | Ferrite-Austenite Duplex Stainless Steel | S31500, S31803, S32205, S32750, S32760 |
4 | Ni-Alloy | N08800, N08810, N08811, N08020, N08825, N08028, N06600, N06601, N06625 |
5 | API Corrosion Resistant Alloy | LC30-1812, LC65-2205, LC65-2506, LC80-2507, LC30-2242 |
The standards of stainless steel seamless pipes and tubes as follows
ASTM | ASTM A312 | ASTM A213 | ASTM A269 | ASTM A376 | ASTM A511 | ASTM A789 | ASTM A790 |
ASTM B163 | ASTM B167 | ASTM B407 | ASTM B423 | ASTM B444 | ASTM B677 | ||
ASME | ASME SA312 | ASME SA789 | ASME SA790 | ASME SA376 | ASME SA213 | ASME SB163 | ASME SB167 |
ASME SB407 | ASME SB423 | ASME SB444 | ASME SB677 | ||||
API | API 5LC | ||||||
JIS | JIS G3459 | JIS G3463 | |||||
EN | EN 10216-5 | EN10216-2 | |||||
GOST | GOST 5632-72 | GOST 9941-81 | |||||
GB | GB/T 14975 | GB/T 14976 | GB 13296 | GB 5310 | GB 9948 | GB/T21833 | |
DIN | DIN 17456 | DIN 17458 |





Stainless Steel Welded Pipe and Tube
1, Prodution Process
1) Continuous Manufacturing Process of Welded Tubes & Pipes
OD range: 10-406.4(up to 16"); WT range: 0.5-10.00 (SCH5S, 10S, 40S, STD)
2) Bending Process of Welded Pipes
OD range: 219.08-2540.00 (up to 100"); WT range: 3.00-35.00(SCH5S-80S, SCH5-160, STD)
2, Application: Petroleum, petrochemical, refinery, boiler, chemical, machinery, power, shipbuilding, paper-making, pharmacy and food, etc.
3, Material: Products and Grades
Standards | Grades | ||
ASTM: | A312、A778、A358、A249、A269、A270、A554、A790、A789、A928; | ASTM/ASME: | TP304、TP304L、TP304H、TP316、TP316L、TP321、TP321H、TP310S、TP310H、TP317、TP317L、TP347、TP347H、TP409、TP430、TP444、N08904、S31803、S32205、S32750、S32760 |
JIS: | G3459、G3468、G3446、G3463、G3448; | ||
EN: | EN10217-7、EN10312 | EN: | 1.4301、1.4306、1.4307、1.4401、1.4404、1.4410、1.4429、1.4462、1.4541、1.4571、1.4539、1.4550 |
DIN: | DIN17457、DIN11850 | ||
GB: | GB/T12770、GB/T12771、GB/T24593、GB/T19228、GB/T21832 | GB/HG: | 12Cr18Ni9、06Cr19Ni10、022Cr19Ni10、07Cr19Ni10、06Cr23Ni13、06Cr25Ni20、06Cr17Ni12Mo2、06Cr19Ni13Mo3、022Cr19Ni13Mo3、06Cr18Ni11Ti、06Cr18Ni11Nb、07Cr18Ni11Nb、022Cr22Ni5Mo3N、022Cr23Ni5Mo3N、022Cr25Ni7Mo4N |
HG: | HG20537.1、HG20537.2、HG20537.3、HG20537.4 | ||
Non-Standard products are available upon customer requirements. | Other Grades are available upon customer requirements after PQR. | ||





We are committed to providing more competitive Gi Pregalvanzied Welded Square Steel Pipe and supporting services that even more exceed customer expectations. We require our employees to uphold the spirit of continuous innovation, receive all advanced knowledge and experience with a broad mind, and integrate them into our technology, system, process and system. We keep pushing the product structure to advanced, series and refinement, and move towards higher goals.
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