Customized ANSI 1/2"-72"Stainless Steel Weld Slip-on Flanges

• Standard: ANSI, DIN, GB, JIS, GOST, BSW
• Type: Welding Flange
• Material: Stainless Steel
• Model NO.: TB900-4
• Structure: Flanges
• Connection: Welding
• Sealing Surface: RF
• Manufacturing Way: Forging
• Technology: Forged Casting
• Warranty: 1year
• Flange Size: 3/4 Inch, 1/2 Inch
• Selling Units: Single Item
• Transport Package: Wooden Box /Pallet
• Specification: 304/316L
• Trademark: OEM/ODM
• Origin: China
• HS Code: 7506200000
• Production Capacity: 1000 Pieces/Month

Product Description

Product Description

 

Name	Weld Slip-on Flanges
Size	Size1/4" to 90"   DN15-DN3000
Standard	DIN,ANSI,BS,GB,UNI,HG,JB,SH,JIS
Material	Carbon steel, alloy steel, chromium-molybdenum steel, stainless steel
Certificates	ISO 9001:2015
Wall thickness	SCH10,SCH20,SCH30,STD,SCH40,SCH60,SCH80,SCH100,SCH120,SCH160,XS,XXS
Surface Treatment	black paint, varnish, oil, galvanized, anti corrosion coatings
Marking	Standard marking, or according to your request. Marking Method:Spray white paint
Packaging	Wooden box or pallet
Test	Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Inspection, hydraulic testing, X-ray
Application	liquid delivery; Structure pipe; High and low pressure Boiler tube; Seamless steel tubes for petroleum cracking; oil pipe; gas
Advantages	1.Reasonable price with excellent quality 2.Abundant stock and prompt delivery 3.Rich supply and export experience, sincere service 4.Reliable forwarder

 

Detailed Photos

 

Product Parameters

 

Company Profile

TOBO INDUSTRY (SHANGHAI) CO., LTD Located in Baolong Center, Jiading District, Shanghai, the company has 5 factories to provide customers with the products they need, and the group factory covers an area of 800 acres As a Top 10 in the field of pipe flange manufacturing, the company has been committed to providing high-quality pipe flanges to customers around the world for many years. Since its establishment in 1984, the company has stood out in the fierce market competition by virtue of its profound understanding of the industry and continuous technological innovation.
The company has 15 sets of advanced production equipments and 6 product production lines. From raw material inspection to product molding, every step of the process strictly follows international standards and industry norms. Our pipe fitting flange products cover a wide range of types and specifications, which can meet the diversified needs of different customers in the fields of petroleum, chemical industry, electric power, construction and so on. The quality of our products is stable and reliable, with excellent performance in key performance indicators such as corrosion resistance and compression resistance, which are trusted by our customers.
In terms of product research and development, the company has its own team of engineers, who have been engaged in research and development positions for 5-8 years, and are able to solve the problems and difficulties we may encounter in product production and sample processing in real time.
In addition to product quality and technological innovation, the company also focuses on customer service. We have established a perfect pre-sale, sale and after-sale service system to provide customers with all-round support. Whether it is product consultation, order processing or after-sales maintenance, we can make our customers feel our professionalism and attentiveness.
Looking to the future, TOBO INDUSTRY (SHANGHAI) CO., LTD. will continue to uphold the business philosophy of "quality first, customer first, innovation and development", and constantly improve its own strength to provide customers around the world with better quality pipe fitting flange products and services, and contribute more to the development of the industry.

 

Our Advantages

FAQ

 

1. Terms of payment: T/T, L/C.

2. Terms of shippment: by air, by sea, by train.

3. Date of delivery: depend on the quantity.

4. Packaging: polywood carton or fumigation-free pallet.

5. Certificates: API/TUV/ISO9001.

6. MOQ: none.

7. Port of loading: Shanghai, China.

8. Supply ability: 200 tons per week.

9. Common flange execution standard:

National standard flange:GB/T9112-2010 (GB/T9112~9124-2010)
American standard flange:ANSI B16.5 Class150,300,600,900,1500(WN,SO,BL,TH,LJ,SW)
Japanese standard flange:JIS 5K,10K,16K,20K(PL,SO,BL,WN,TH,SW)
German standard flange:DIN2573,2572,2631,2576,2632,2633,2543,2634,2545
Chinese Chemical Industry standard:HG/T20592-2009,HG5010-52~HG5028-58,HGJ44-91~HGJ65-91,HG20615-97
Chinese Ministry of Machinery standard:JB81-59~JB86-59,JB/T79-94~JB/T86-94,JB/T74-1994
Chinese pressure vessel standard:JB1157-82~JB1160-82,JB4700-2000~JB4707-2000 B16.47A/B B16.39 B16.48

 

10. The following information is required for customized flanges:

Nominal diameter, nominal pressure, implementation standard, sealing surface type, material;if it is special-shaped flange, please provide drawings.

 

11. Reasons and countermeasures for acid pickling corrosion of 304 stainless steel flanges:
(1) The corrosion of stainless steel flanges is the result of a combination of multiple factors, among which the first phase precipitated at the material grain boundary is the main cause of flange failure. It is suggested that the heating temperature should be strictly controlled during hot working, not exceeding the upper limit temperature of the material heating process specification. At the same time, it should be cooled quickly after solution to avoid staying in the temperature range of 450 ºC - 925 ºC for a long time and prevent the precipitation of the third phase particles.
(2) The mixed grains in the material are prone to electrochemical corrosion on the surface, and the forging ratio should be strictly controlled during the forging process.
(3) The low content of Cr element and high sulfide content in the material directly affect the corrosion resistance of the flange. When selecting materials, attention should be paid to selecting materials with pure metallurgical quality.

 

12. The difference between 304 stainless steel and 316L stainless steel:

316L stainless steel contains Mo, which has better corrosion resistance than 304 stainless steel in high-temperature environments. Therefore, engineers generally choose components made of 316L material (or other more high-temperature resistant materials) in high-temperature environments. The alloy element ratios of 304 stainless steel and 316L stainless steel are different. 316L mainly increases the proportion of Ni content, thus its corrosion resistance is stronger than 304, making it more suitable for use in chemical, seawater and other environments. The cost of 316L is higher than 304. 304 stainless steel is a more common pipe fitting. 316L stainless steel is generally used in scenarios that require better resistance to intergranular corrosion and welding processing performance.

 

13. What does flange code PL100B PN16 RF 20# HG/T20592-2009 mean:
PL is code for flat welded flange
100 is the flange through 100 series
(B) refers to Series B flanges, DN100 Series B piping Φ108
PN16 refers to the pipe with flange matching maximum pressure,PN16 is 16kg pressure, or PN1.6Mpa
RF refers to the sealing surface of the flange as a protruding surface (RF)
20# refers to the material of the flange is 20# steel
HG/T20592-2009 is the executive standard for flanges in Chinese Chemical Industry.