| Customization: | Available |
|---|---|
| Type: | Stainless Steel Pipes |
| Standard: | ASTM, AISI, GB, DIN, EN, ASTM, AISI, GB, DIN, En, GOST9941 |
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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 INTRODUCTION| Product Name | Seamless Stainless Steel Pipes /Tubes | |
| Company Inform | 1.Name:WENZHOU GUOHAO STEEL., LTD 2.Type: Manufacturer |
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| Material | Duplex : UNS S31803,UNS S32750, UNS S32760 Austenitic :TP304, TP304L, TP304H, TP309S, TP310S, TP316L, TP316Ti, TP317L, TP321, TP321H, TP347H , 904L, 254SMO 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 |
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| Standard | ASTM A312,ASTM A213,ASTM A269,ASTM A511, ASTM A789,ASTM A790,EN 10216-5,DIN 17456,DIN14975,GB/T 14976,GB13296, GB5310, GB9948,GOST 9940,GOST 9941,ASTM B161,ASTM B163,ASTM B167,ASTM B407, ASTM B444,ASTM B622,ASTM B677 |
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| Specification | Outer diameter | 6mm-630mm |
| Wall thickness | 1mm-40mm | |
| Length | Single random length/ Double random length or as customer's actual request | |
| Surface | Annealing&Pickling, Polishing180#-600#), Bright Annealing, Sand Blasting,Shot Blasting | |
| Markings | 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 | |
| Delivery Time | 1.for ready stock :7 days after receiving the deposit of T/T 2.For MTO: 35 days after receiving the deposit of T/T |
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| 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 Norminal Wall Thickness Wall Thicknesses Schedule ANSI/ASME B36.10M,B36.19M 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM |
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| Application | Widely used in petroleum,foodstuff,chemical industry,construction, electric power,nuclear energy,machinery,shipbuilding,boiler fields and environmental protection industry. | |
| 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) |
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| Grade | C (Max) | Mn (Max) | P (Max) | S (Max) | Si (Max) | Cr | Ni | Mo | Nitrogen (Max) | Cu/ Others |
| 304 | 0.080 | 2.00 | 0.045 | 0.030 | 1.00 | 18.00~20.00 | 8.00~10.50 | - | - | - |
| 304L | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 18.00~20.00 | 8.00~12.00 | - | - | - |
| 304H | 0.040~0.100 | 2.00 | 0.045 | 0.030 | 1.00 | 18.00~20.00 | 8.00~12.00 | - | - | |
| 310S | 0.080 | 2.00 | 0.045 | 0.030 | 1.50 | 24.00~26.00 | 19.00~22.00 | - | - | - |
| 316 | 0.080 | 2.00 | 0.045 | 0.030 | 1.00 | 16.00~18.00 | 11.00~14.00 | 2.00~3.00 | - | - |
| 316L | 0.030 | 2.00 | 0.045 | 0.030 | 1.00 | 16.00~18.00 | 10.00~14.00 | 2.00~3.00 | - | - |
| 316Ti | 0.080 | 2.00 | 0.045 | 0.030 | 0.075 | 16.00~18.00 | 10.00~14.00 | 2.00~3.00 | 0.10 | Ti:5x C Min |
| 317L | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 18.00~20.00 | 11.00~15.00 | 3.00~4.00 | - | - |
| 321 | 0.080 | 2.00 | 0.045 | 0.030 | 1.00 | 17.00~19.00 | 9.00~12.00 | - | 0.10 | Ti:5xC Min |
| 321H | 0.040~0.100 | 2.00 | 0.045 | 0.030 | 1.00 | 17.00~19.00 | 9.00~12.00 | - | 0.10 | Ti:4xC Min |
| 347H | 0.040~0.010 | 2.00 | 0.045 | 0.030 | 1.00 | 17.00~19.00 | 9.00~13.00 | - | - | Nb:8C~1.0 |
| S31803 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 21.00~23.00 | 4.50~6.50 | 2.50~3.50 | 0.08~0.20 | - |
| S32205 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 22.00~23.00 | 4.50~6.50 | 3.00~3.50 | 0.14~0.20 | - |
| S32750 | 0.030 | 1.20 | 0.035 | 0.020 | 0.80 | 24.00~26.00 | 6.00~8.00 | 3.00~5.00 | 0.24~0.32 | Cu:0.50 Max |
| S32760 | 0.030 | 1.00 | 0.030 | 0.010 | 1.00 | 24.00~26.00 | 6.00~8.00 | 3.00~4.00 | 0.20~0.30 | Cu:0.5~1.0 W:0.5~1.0 |
| 904L | 0.020 | 2.00 | 0.040 | 0.030 | 1.00 | 19.00~23.00 | 23.00~28.00 | 4.00~5.00 | 0.10 | Cu:1.0~2.0 |
| NPS Designator | Tolerance, % from Nominal | |
| Over | Under | |
| ⅛ to 2½ incl., all t/D ratios | 20.0 | 12.5 |
| 3 to 18 incl., t/D up to 5% incl. | 22.5 | 12.5 |
| 3 to 18 incl., t/D > 5% | 15.0 | 12.5 |
| 20 and larger, welded, all t/D ratios | 17.5 | 12.5 |
| 20 and larger, seamless, t/D up to 5% incl. | 22.5 | 12.5 |
| 20 and larger, seamless, t/D > 5% | 15.0 | 12.5 |
| NPS [DN] Designator | Tolerance in %, from specified | |
| Over | Under | |
| ⅛ to 2½ [6 to 65] incl., all t/D ratios | 20 | 12.5 |
| Above 2½ [65], incl, t/D ≤ 5% | 22.5 | 12.5 |
| Above 2½ [65], incl, t/D > 5% | 15 | 12.5 |
| No. | Size, Outside Diameter, in. | Permissible Variations in Outside Diameter, in. (mm) | Permissible Variations in Wall Thickness, % | Permissible Variations in Cut Length, in. (mm) | Thin Walled Tubes | |
| Over | Under | |||||
| 1 | Up to ½ | ±0.005(0.13) | ±15 | ⅛(3.2) | 0 | ... |
| 2 | ½ to 1½, excl | ±0.005(0.13) | ±10 | ⅛(3.2) | 0 | less than 0.065 in. (1.65 mm) nominal |
| 3 | 1½ to 3½, excl | ±0.010(0.25) | ±10 | 3/16(4.8) | 0 | less than 0.095 in. (2.41 mm) nominal |
| 4 | 3½ to 5½, excl | ±0.015(0.38) | ±10 | 3/16(4.8) | 0 | less than 0.150 in. (3.81 mm) nominal |
| 5 | 5½ to 8, excl | ±0.030(0.76) | ±10 | 3/16(4.8) | 0 | less than 0.150 in. (3.81 mm) nominal |
| 6 | 8 to 12, excl | ±0.040(1.01) | ±10 | 3/16(4.8) | 0 | less than 0.200 in. (5.08 mm) nominal |
| 7 | 12 to 14, excl | ±0.050(1.26) | ±10 | 3/16(4.8) | 0 | less than 0.220 in. (5.59 mm) nominal |
1.Q: Do you provide customized product services?
A: Of course, we can design and produce the products you need based on your specifications and drawings. For example: special dimensions, special controls, OEM, etc.
2.Q: Are you a manufacturer or trader?
A: We are manufacturers. We have our own factory to produce and process various kinds of stainless steel /nickel alloy pipes.
3.Q: Can we get the some samples?Is there a charge?
A: Yes, we will provide you with the samples you want. The samples are free of charge, but the customer may have to pay the freight.
4.Q: Can we visit your factory?
A: Of course, we welcome you to visit our factory on-site or visit our production line through online videos to learn more about our strength and quality. Once we have your schedule, we will arrange a professional sales team to follow up with you.
5.Q: How do you ensure the quality of the product?
A: All products must undergo three inspections throughout the entire manufacturing process, including production, cutting, and packaging. The factory inspection report is provided with the goods. If necessary, third-party inspections such as SGS can be accepted.
6.Q: What is your delivery time?
A: Different products and procurement quantities have different delivery times. The product will be delivered as soon as possible on the basis of quality assurance. Usually, if the goods are in stock, it takes 3-10 days. Alternatively, if the goods are out of stock, it will take 25 to 45 days.
7.Q: Can you arrange shipment?
A: Of course, we have freight forwarders who have been cooperating for many years. We are VIP and can provide you with the most favorable prices and professional services.
8.Q: What if I don't have import experience?
A: We have rich export experience. As long as you have an import license, please leave the rest to us! We will help you choose the most suitable transportation service to safely and accurately deliver the product to the place where it is needed.
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