Big Size Large Steel Forged Stainless Steel Wn Welding Neck Flange

• Standard: ANSI, DIN, GB, JIS, GOST
• Type: Welding Flange
• Material: Carbon Steel
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: DN15-DN3000
• Structure: Flanges
• Connection: Welding
• Sealing Surface: RF
• Manufacturing Way: Forging
• Coating: as Customers Requirements
• Size: 1/2-24
• Surface Treatment: Painted
• Applications: Petroleum, Chemical, Machinery, Boiler
• Transport Package: Pallet, Wooden Case, as Customers Requirements
• Specification: SGS, BV, ISO9001, API
• Trademark: ST
• Origin: Cang Zhou, China
• HS Code: 730791
• Production Capacity: 30, 000 Ton/Year.
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 1.000kg

Product Description

Big Size Large Steel Forged Stainless Steel Wn Welding Neck Flange

1. What's blind flange usage

Blind flange is used to close ends of piping systems. It is a kind of round plate with no center hold but with all the proper bolt holes. This blind flange is available in various sizes and materials and is used to provide positive closer on the ends of pipes, valves or equipment nozzles. This flange helps in easy access to A Line once it has been sealed. The blind flange is sometimes custom made or machined to accept a nominal sized pipe to which reduction is being made. This reduction can be a threaded reduction or welded reduction.

2. Features of blind flanges: Some important features of blind flanges are as follows:
Blind flanges are sometimes supplied with NPT fittings which allow pressure test connections to be fitted.
They are used to blank off the ends of pipe.
They are also used to blank off the ends of valves and pressure vessel opening.
Considering factors like internal pressure and bolt loading, blind flanges, especially in the larger sizes, are the most highly stressed of all types of flanges.
Since the maximum stresses in a blind flange are bending stresses at the center, they can safely be allowed to be higher than in other types of flanges.
Blind flanges are made to fit standard pipes in all sizes.
3. Blind flange material

Stainless Steel: ASTM A 182, A 240
Grade: F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L, Duplex stainless steel UNS S31803, 2205, Super Duplex stainless steel UNS S32750
Carbon Steel: ASTM A 105, ASTM A 181
Alloy Steel: ASTM A 182, GR F1, F11, F22, F5, F9, F91
Nickel Alloys: Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22, C276
Copper Alloys: Copper, Brass & Gunmetal
Size: 1/8" NB TO 48"NB.
Class: 150#, 300#, 400 #, 600#, 900#, 1500# & 2500 #.

4. Blind flange standard

ANSI: ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN: DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
B. S: BS4504, BS4504, BS1560, BS10

Product Description

 

Steel Flanges
Material	Carbon steel	ASTM A105. ASTM A350 LF1. LF2, CL1/CL2, A234, S235JRG2, P245GH
		P250GH, P280GHM 16MN, 20MN ,20#
	Stainless steel	ASTM A182, F304/304L, F316/316L
	Alloy steel	ASTM A182 A182 F12,F11,F22,F5,F9,F91etc.
Standard	ANSI	Class 150 Flanges-Class 2500 Flanges
	DIN	6Bar 10Bar 16Bar 25Bar 40Bar
	JIS	5K Flanges-20K Flanges
	UNI	6Bar 10Bar 16Bar 25Bar 40Bar
	EN	6Bar 10Bar 16Bar 25Bar 40Bar
TYPE	1.Welding neck Flange 2.Slip on
	3.Blind flange 4.Long welding neck flange
	5.Lap joint flange 6.Socket welding
	7.Threaded flange 8.Flat flange
Surface	Anti-rust oil, clear lacquer, Black lacquer, Yellow lacquer,hot-dipped Galvanized,electrical galvanized
Connection	Welding, Threaded
Technical	Forged, Casting
Size	DN10-DN3600
Package	1.>Standard export packaging (Plywood Case Of Outside,Plastic Cloth Of Inside). 2:As Customers' Requirements
Heat Treatment	Normalizing, Annealing, Quenching Tempering
Certificate	ISO9001:2008
Applications	Water works, Shipbuilding industry, Petrochemical & Gas industry, Power industry, Valve industry,and general pipes connecting projects etc.

Detailed Photos

 

Packaging & Shipping

 

 

Certifications

 

 

Company Profile

 

 

Established in 1989, Hebei Shengtian Pipe-Fitting Group Co., Ltd. located in Mengcun County Hebei Province China, covering a land area of 100,000 square meters, with a workshop of 25,000 square meters and registered capital of 110 million RMB. Our company has a strong staff team. There are over 360 employees, including over 30 professionals and technicians.

We are capable of manufacturing various pipe fittings. Our main products scope: steel elbow, tees, bends, reducers, caps, forged flanges and sockets. We have been in this line for over 20 years. Our products are exported to many countries and regions, such as Southeast Asia, the Middle East, Europe and America etc. Our pipes and pipe fittings enjoy a good reputation in domestic and foreign markets. Every year, hundreds of foreign visitors and innumerable domestic visitors come to our company for business cooperation.

We have first-class inspection devices, perfect detecting means and well-trained specialists. And we stick to ISO9000:2000 quality system and efficiently control procedure in production. We have confidence that we can supply the best quality products. We would like to take responsibility for any quality uncertainty. Even so, our price is competitive. Besides, we can provide the best service to you.

In order to avoid the policy of the anti-dumping duties imposed on pipe & fittings from the Europe, United States and other countries, We can re-export through other countries like Malaysia, etc, to circumvent the anti-dumping duties, which could make you to win more competitive price.

Our products are in compliance with many international standards

Pipe Standard: ASTM A53,A106,API 5L,ASME B36.10M---1996.

Pipe-Fittings Standard: ANSI B16.9/16.28,DIN 2605 / 2616,JIS P2311 / 2312,GOST.

Flange Standard: ANSI B16.5,DIN Series,JIS Series,GOST Series.