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A312 Tp304h Stainless Steel Pipe
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Product Details
Type | Stainless Steel Pipes | Certification | ISO, ROHS, IBR, AISI, ASTM, GB, EN, DIN, JIS, Other | |
Shape | Round | Grade | Other | |
Technique | Other | Surface Treatment | Polished | |
Standard | ASTM, AISI, GB, JIS, DIN, EN, Other | Specification | OEM | |
Trademark | ZHONGZHENG INTERNATIONAL | Origin | China |
Product Description
316L TP304 BA clean pipe
Top Quality TP304H Seamless Stainless Steel Round Pipe/Tube Supplier in China
Applications: Decoration, building, construction, water pipe, petroleum, chemical industry, chemical fiber, smelting, medical machinery, paper making, heat preservation and refrigeration, mechanical equipment, food, electricity, water conservancy, architecture, aerospace, navigation, shipbuilding, environmental protection, and boiler heat exchanger.
Company Name: ZHEJIANG ZHONGZHENG STAINLESS STEEL CO., LTD.
A312/A312M | |||||||||
CHEMICAL COMPONENTS | C | SI | MN | S | P | NI | CR | TI | MO |
0.04-0.08 | 1 | 2 | 0.03 | 0.045 | 8-11 | 18-20 | |||
MECHANICAL TEST | |||||||||
MIN TENSILE STRENGTHEN | MIN YIELD STRENGTHEN | ||||||||
515Mpa | 205Mpa |
Manufacture Standard: | ASTMA213, ASTMA312, ASTM A269, ASTMA511, ASTM A789, ASTM A790,GOST 9941, GOST 9940, DIN17456, DIN17458, EN10216-5, EN17440,JISG3459, JIS3463,GB/T13296, GB/T14976, GB/T14975, GB9948, GB5310, etc |
Grades: | TP304H |
Size: | A).Out diameter: ANSI 1/8"-24"(6mm-630mm). B).Wall thickness: (0.9mm-50mm) |
Process methods: | cold dawning, cold rolling |
Surface &Delivery condition: | Solution annealed and pickled, grey white (polished),with plain ends/bevel edges ends |
Length: | Max25 meters |
Packing: | in seaworthy wooden cases or in bundles |
Min order quantity: | 0.5-1 ton |
Delivery date: | TP304 round pipes usually have stock,others Min. 10 days |
Certificates: | ISO9001:2000 quality system and Mill test Certificate supplied |
Quality assure: | 1),Basic guarantee:Raw material guarantee,we use the Tsingshan Brand raw material,the quality is good,adding we use the spectrum direct-reading test,our professional workers &equipments,we could guarantee the tubes is right of the clients' needs. 2),Process control:follow the process chart adding our workers' care 3),Inspection& Test: Direct-reading Spectrum Instrument analytic for chemical composition, Yield Strength, Tensile Strength, Elongation, Hardness Test, Flattening Test, Flaring Test, Eddy Current Test, Ultrasonic Test, Hydrostatic Test, Corrosion Test, etc. |
304H Seamless Pipe is a high strength pipe grade with excellent load bearing capacity. These pipes are produced by passing hot billets through extruding the metal and then shaping it into the correct dimensions.
This versatile pipe is expensive due to the materials used in its production but is worth the money due to its excellent characteristics. ASTM A312 Gr TP 304H is a grade designed for non-pressurized vessels or systems. This grade covers the structural qualities and shapes of different pipe grades.
TP 304H and TP 304L stainless steels have very similar chemical and mechanical properties, but there is one subtle but significant difference between them: carbon content. Type 304H stainless steel can contain up to 0.08% carbon, while Type 304L stainless steel typically contains up to 0.03% carbon. This may seem like an insignificant difference, but even a slight increase in carbon content can greatly enhance the corrosion resistance of a steel alloy.
Product Name | Stainless Steel Seamless Pipes /Tubes Труба Сталь конструкционная криогенная Tubería de acero inoxidable sin costura Tubos de A?o Inoxidável sem Costura Tubo INOXIDABLE SIN COSTURA | |
Company Inform | 1.Name:ZHEJIANG ZHONGZHENG STAINLESS STEEL., LTD 2.Type: Manufacturer | |
Material | Austenitic: TP304, TP304L, TP304H, TP309S, TP310S, TP316L, TP316Ti, TP317L, TP321, TP321H, TP347H , 904L, 254SMO GOST Grade: 08х18н10т,12х18н10т(AISI 321), 10х17н13м2т(AISI 316Ti), 20х23н18(AISI 310S), 06хн28мдт(AISI 904L), 08х18н10(AISI304) EN Grade: 1.4301,1.4306,1.4311,1.4541,1.4401,1.4404,1.4550,1.4571,1.4429,1.4435,1.4436,1.4439 | |
Duplex Stainless: UNS S31803,UNS S2205,UNS S32750, UNS S32760 | ||
Nickel Alloy: Incoloy: 800/800H/800HT 825 926 20 28 201 200 Inconel :718 600 601 625 Hastelloy: C-22 C-276 B-2 B-3 GH3030 GH3039 Cr20Ni80 ; Monel400,K-500 | ||
Standard | ASTM A312,ASTM A213,ASTM A269,ASTM A511,ASTM A789,ASTM A790 ASTM B161 B163 B165 B167 B407 B423 B444 B622 B677 B729 B983 EN 10216-5,DIN 17456 GB/T 14976,GB13296,GB/T 21833,GB/T 15011,GB/T 15062 GOST 9940,GOST 9941 | |
Specification | D(Outer Diameter) | 6mm-630mm ; 1/8inch-24inch |
T(Wall Thickness) | 0.89mm-40mm SCH 5, SCH 10, SCH 40, SCH 80, SCH 160, SCH XXS 10 BWG, 12 BWG, 14 BWG , 16 BWG, 18 BWG, 20 BWG 10 SWG, 12 SWG, 14 SWG , 16 SWG, 18 SWG, 20 SWG | |
L(Length) | Random length 5~7m Fixed length 6m /6.096m /6.1m/12m or as customer's actual request | |
Surface |
| |
Pipe End |
| |
Markings | GH-STEEL S.S SMLS PIPE ASTM A312 TP304L 2" SCH40S 6MTR HEAT NO.*********** Markings will adhere to prescribed specifications in A999/A999M and shall include the NPS or OD and schedule number or average wall thickness, heat number, and NH (when hydrotesting is not performed) and ET (when eddy-current testing is performed) or UT (when ultrasonic testing is performed). The marking shall also include the manufacturer's private identifying mark, the marking requirement of section 12.3 on Hydrostatic or Nondestructive Electric Test, if applicable, and whether seamless (SML), welded (WLD), or heavily cold-worked (HCW). For Grades TP304H, TP316H, TP321H & TP347H, the marking shall also include the heat number and heat-treatment lot identification. | |
Flattening Test | For material heat treated in a continuous furnace flattening tests shall be made on a sufficient number of pipes to constitute 5% of the lot, but in no case less than 2 lengths of pipe. | |
Hydrostatic or Nondestructive Testing | Each pipe shall be subjected to the nondestructive electric test or the hydrostatic test | |
Value Added Services | Customize Length, Bending, Polishing, Shot Blasting, Drilling/Punching, Degreasing | |
Delivery Time |
| |
Trade Terms | EXW,FOB, CFR, CIF etc. | |
Loading Port | Ningbo/Wenzhou/Shanghai | |
Remittance method | TT/LC/CASH | |
Container | 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 54CBM 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM | |
Referenced Documents | ASTM Referenced Standards A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels A370 Test Methods and Definitions for Mechanical Testing of Steel Products A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys A999/A999M Specification for General Requirements for Alloy and Stainless-Steel Pipes A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless-Steel Tubes E112 Test Methods for Determining Average Grain Size E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS) |
Company Profile

Zhongzheng Stainless Steel Co., Ltd. is a China-based manufacturer specializing in R&D, production, and distribution of stainless steel products. Established in the early 2000s, it serves industries including construction, machinery, food/medical equipment, and energy with precision tubes, sheets, profiles, and custom components.
Contact Us
- Zhongzheng Stainless Steel Co., Ltd.
- Contact nameLaijing Bu Chat Now
- AddressRoom 104-07, Building 5, Jinghu Technology Park Huanajinghu Garden, Donglihu Subdistrict Dongli District,
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