DN250 10 Inch Class300 Carbon Steel A350 Lf2 Welding Neck Flange

• Customization: Available
• Standard: ANSI, DIN, GB, JIS, GOST, BSW
• Type: Welding Flange
• Model NO.: 10" DN250
• Material: Carbon Steel
• Structure: Round
• Connection: Welding
• Sealing Surface: RF
• Manufacturing Way: Forging
• Quality Guarantee: 18 Months
• Pressure Rating: Class 300 Pn5.0 MPa
• Steel Grade: A350 Lf2 for Low Temperature
• Lowest Working Temperature: -46 Degree Centigrade
• Transport Package: Wooden Case
• Specification: 10" DN250
• Trademark: XINQI
• Origin: Cang Zhou
• HS Code: 730791
• Production Capacity: 1000pieces/Day
• Package Size: 45.00cm * 45.00cm * 12.00cm
• Package Gross Weight: 46.000kg

Product Description

Carbon steel neck butt welding flange refers to a kind of flange with cone neck and butt welding with cylinder or pipe. It is an integral flange.
Because of the transition structure and butt welding connection of the cone neck, the strength and stiffness of the flange are strengthened, and the sealing performance is better than that of the flat welding flange. The disadvantage is that it needs to be manufactured by forging, which consumes a lot of materials and costs a lot. Suitable for high pressure, high temperature or high sealing requirements.

butt welding neck flange: the welding seam between flange and pipe is circumferential weld;
The butt welding  neck flange is mostly machined from forged steel.
The nominal pressure of  butt weld neck flange is 1 -- 42MPa
WN flange: a flange with neck and a pipe transition, which is connected with the pipe by butt welding.
welding NECK flange: it is used for butt welding of flanges and pipes. Its structure is reasonable, its strength and stiffness are large, it can withstand high temperature and high pressure, repeated bending and temperature fluctuations, and its sealing is reliable. The  welding NECK flange with nominal pressure of 1.0~42.0MPa adopts concave convex sealing surface.

Product name:	Flange(304/F304 WN/FF. RF/RTJ   ASME/ANSI B16.5 class150lb-2500lb Forged Stainless Steel Weld Neck Flange)
Size:	1/2"~24"
Pressure:	Class(150lb-2500lb)  Pn(2.0-42.0 Mpa)
Standard:	ASME/ANSI B16.5,DIN,JIS B2220,BS 4504 EN1092-1  GOST 33259-2015  GOST 12821  SANS 1123 and etc.
Material:	Stainless Steel
	Carbon Steel
	Duplex stainless steel
	Pipeline steel
	Nickel alloy
Application:	Petrochemical industry;Aviation and aerospace industry;Pharmaceutical industry; Gas exhaust;Power plant;Ship building;Water treatment,etc.
Advantages:	Ready stock;Faster delivery time;Available in all sizes;Customized;High quality

a) How can I get more details about your products?
You can send an email to our email address. We will provide catalogue and pictures of our products for your reference.We can also supply pipe fittings, bolt and nut, gaskets etc. We aim to be your piping system solution provider. 
b) How can I get some samples?   
If you need, we will offer you samples for free, but new customers are expected to pay express charge. 
c) Do you provide customized parts? 
Yes, you can give us drawings and we will manufacture accordingly. 
d) To which country have you supplied your products?
We have supplied to Thailand, China Taiwan, Vietnam, India, South Africa, Sudan, Peru , Brazil, Trinidad and Tobago, Kuwait, Qatar, Sri Lanka, Pakistan, Romania, France, Spain, Germany, Belgium, Ukraine etc. (Figures here only include our customers in latest 5 years.). 
e) I can't see the goods or touch the goods, how can I deal with the risk involved?  
Our quality management system conforms to the requirement of ISO 9001:2015 verified by DNV. We are absolutely worth your trust. We can accept trial order to enhance mutual trust.