| Customization: | Available |
|---|---|
| Application: | Automotive Industry, Chemical Industry, Food Industry, Oil and Gas Industry, Pharmaceutical Industry |
| Certification: | ISO9001 |
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| Product Name | Seamless Stainless Steel Pipes /Tubes | |
| Company Inform | 1.Name:WENZHOU GUOHAO STEEL., LTD 2.Type: Manufacturer |
|
| Material | DUPLEX SS 2507 UNS S32750 (F53 / 1.4410 / Alloy 32750 / Alloy 2507) | |
| Standard | ASTM A789,ASTM A790 | |
|
D (Outer diameter) | 6mm-630mm |
| T (Wall thickness) | 1mm-40mm | |
| L(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 | Marked Pipe Sample: ASTM A790 UNS S32750 12" NB SCH 40S SEAMLESS HEAT NO. XXXX | |
| 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 |
|
| 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) |
|
UNS S32750 Chemical Properties
| Grade | Ni | C | Cr | Mn | Si | P | Cu | S | Mo | N | |
| 2507 | Min | 6 | - | 24 | - | - | - | - | - | - | 0.24 |
| Max | 8 | 0.03 | 26 | 1.2 | 0.8 | 0.035 | 0.5 | 0.02 | 1.2 | 0.32 |
| Grade | Density | Tensile Strength min | Yield Strength min | Elongationin 2 in or 50mm,min | Hardness,max | Heat Treatment Temperature | ||
| ksi[MPa] | ksi[Mpa] | % | Brinell | HRC | ºF | ºC | ||
| S32750 /2507 | 7.8g/cm3 | 116[800] | 80[550] | 15 | 300 | 32 | 1880-2060 | 1025-1125 |
| Alloy Comparisons | S31803 | S17400 (17-4PH) |
718 ( ST) |
S31254 | Alloy 32750 |
| 0.2% Proof Strength (N/mm2), minimum | 450 | 1070 | 550 | 300 | 550 |
| Corrosion Rate (mm.y-1) Seawater | < 0.01 | ~1 | < 0.01 | < 0.01 | < 0.01 |
| Corrosion Rate (mm.y-1) 10% sulphuric acid at 80°C |
< 0.4 | 10 | >1 | 1.5 | < 0.15 |
| Corrosion Rate (mm.y-1) Boiling 50% nitric acid |
< 0.15 | < 0.15 | < 0.15 | 0.4 | < 0.15 |
| Wear Properties related to Hardness (HBN) | RC25 | RC38 | RC20 | RC20 | RC28 |
| ASTM A789 ASME SA789 PERMISSIBLE VARIATIONS IN DIMENSIONS | ||||||
| Group | Size,Outside Diameter,in.[mm] | Permissible Variations in Outside Diameter,in.[mm] | Permissible Variations in Wall Thinckness | Permissible Variations in Cut Length,in[mm] | Thin Walled Tubes | |
| Over | Under | |||||
| 1 | up to 1/2[12.7],excel | ±0.005[0.13] | ±15% | 1/8"[3] | 0 | ... |
| 2 | 1/2" to 1-1/2"[12.7 to 38.1],excl | ±0.005[0.13] | ±10% | 1/8"[3] | 0 | less than 0.065 in.[1.6mm] nominal |
| 3 | 1-1/2" to 3-1/2"[38.1 to 88.9],excl | ±0.010[0.25] | ±10% | 3/16"[5] | 0 | less than 0.095 in.[2.4mm] nominal |
| 4 | 3-1/2" to 5-1/2"[88.9 to 139.7],excl | ±0.015[0.38] | ±10% | 3/16"[5] | 0 | less than 0.150 in.[3.8mm] nominal |
| 5 | 5-1/2" to 8"[139.7 to 203.2],incl | ±0.030[0.76] | ±10% | 3/16"[5] | 0 | less than 0.150 in.[3.8mm] nominal |
Wenzhou Guohao Steel was established in 2008. We are ISO 9001:2015 approved manufacturer, having a state-of-the-art infrastructure facility for having smooth production process. It has successfully grown by focusing on serving customers across a range of high technology industries. One of our company strengths is its people, with many colleagues having been with the company from the beginning. This provides our customers with the benefit of a wealth of experience and industry knowledge. Guohao Steel now has the whole of manufactured stainless steel products to add to its already large range of High Performance Nickel Alloys.
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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