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Home ProductsWeld Neck Pipe Flanges

Forged DN125A - 250A Weld Neck Pipe Flanges Galvanizing For Oil Pipe Connection

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Forged DN125A - 250A Weld Neck Pipe Flanges Galvanizing For Oil Pipe Connection

Forged DN125A - 250A Weld Neck Pipe Flanges Galvanizing For Oil Pipe Connection
Forged DN125A - 250A Weld Neck Pipe Flanges Galvanizing For Oil Pipe Connection Forged DN125A - 250A Weld Neck Pipe Flanges Galvanizing For Oil Pipe Connection Forged DN125A - 250A Weld Neck Pipe Flanges Galvanizing For Oil Pipe Connection

Large Image :  Forged DN125A - 250A Weld Neck Pipe Flanges Galvanizing For Oil Pipe Connection

Product Details:

Place of Origin: China
Brand Name: BoYue
Certification: ISO,BV,SGS
Model Number: BYWN00043

Payment & Shipping Terms:

Minimum Order Quantity: 1 pcs
Price: Negotiable
Packaging Details: PLY-WOODEN CASE OR PALLET
Delivery Time: 10-100 days depending on quantity
Payment Terms: L/C, T/T, Western Union
Supply Ability: 40000pcs per month
Detailed Product Description
SIZE: 1/2" - 24" PROCESS: FORGED
CLASS RATING: Class150/300/600/900/1500 Etc SEALING FACE: RTJ/FF/RF
FACE FINISH: SMOOTH /STOCK FINISH PRODUCT NAME: Weld Neck Pipe Flanges
APPLICATION: CHEMICAL /OIL/GAS/ENERGY STANDARD: DIN,ANSI,ASME
High Light:

stainless steel weld neck flange

,

reducing weld neck flange

Forged DN125A - 250A Weld Neck Pipe Flanges Galvanizing For Oil Pipe Connection Size2'-24'

 

1.Carbon Steel

 

Carbon Steel :A105,CT20,CT25,P245GH Low Temperature

Carbon Steel: ASTM SA350 LF2 

High Strength Steel: ASTM SA694 F42/46/52/56/60/65/70

 

AISI classification

 

Carbon steel is broken down into four classes based on carbon content:

 

Low-carbon steel

 

0.05 to 0.30% carbon (plain carbon steel) content.

 

Medium-carbon steel

 

Approximately 0.3–0.6% carbon content.Balances ductility and strength and has good wear

resistance; used for large parts, forging and automotive components.

 

High-carbon steel

 

Approximately 0.60 to 1.00% carbon content.Very strong, used for springs, edged tools, and high-

strength wires.

 

2.ASTM B 16.5

 

The B16.5 Standard defines the following:

(1) Dimensions

(2) Tolerances

(3) Materials

(4) Markings

(5) Pressure/Temperature Ratings

(6) Pressure Testing

 

ASME B16.5
Blind Lap Joint Slip On Socket Weld Threaded Weld Neck
Flange Dimensions Flange Dimensions Flange Dimensions Flange Dimensions Flange Dimensions Flange Dimensions
Class 150 Class 150 Class 150 Class 150 Class 150 Class 150
Class 300 Class 300 Class 300 Class 300 Class 300 Class 300
Class 400 Class 400 Class 400 Class 600 Class 400 Class 400
Class 600 Class 600 Class 600 Class 1500 Class 600 Class 600
Class 900 Class 900 Class 900   Class 900 Class 900
Class 1500 Class 1500 Class 1500   Class 1500 Class 1500
Class 2500 Class 2500 Class 2500   Class 2500 Class 2500

 

3.Product catalogue

 

Specification  
Product Flange
Size 1/2"-72"
Type Weld Neck, Slip-On, Blind, Socket Weld, Lap Joint,Spectacle Blind,Etc
Standard ANSI, ASME ,MSS, API, DIN, JIS, BS. AWWA,GOST,EN and GB
Class ANSI 150LBS-2500LBS,
DIN PN6-PN160
BS PN0.25-PN25 PN2.0-PN42.0
JIS 5K-30K
Materials Carbon Steel :A105,CT20,CT25,P245GH
Low Temperature Carbon Steel: ASTM SA350 LF2
High Strength Steel: ASTM SA694 F42/46/52/56/60/65/70
Stainless Steel ASTM A182 F304/304L/316/316L
Alloy Steel ASTM A182 F1/F5/F9/F11/F22/F91/Etc.
Duplex stainless steel ASTM A182 F51/F53/F55/F60
Nicke alloys Nickel 200, Monel 400, Inconel 600/625, Incoloy 825/800
Cu-Ni 90/10,70/30
Process Free forging, plate cutting.
Printing Carbon steel and alloy steel with yellow print, black print, oil or zinc.
Packing Plywood case
Delivery Usually within one month after receiving the formal order .
Inspection Factory in-house or Third Party inspection available upon requests.

 

4.Product display

 

Forged DN125A - 250A Weld Neck Pipe Flanges Galvanizing For Oil Pipe Connection 0

 

5.ASME standards (U.S.)

 

Pipe flanges that are made to standards called out by ASME B16.5 or ASME B16.47, and MSS SP-44.

They are typically made from forged materials and have machined surfaces. ASME B16.5 refers to

nominal pipe sizes (NPS) from ½" to 24". B16.47 covers NPSs from 26" to 60". Each specification

further delineates flanges into pressure classes: 150, 300, 400, 600, 900, 1500 and 2500 for B16.5,

and B16.47 delineates its flanges into pressure classes 75, 150, 300, 400, 600, 900. However these

classes do not correspond to maximum pressures in psi. Instead, the maximum pressure depends on

the material of the flange and the temperature. For example, the maximum pressure for a Class 150

flange is 285 psi, and for a Class 300 Flange it is 740 psi (both are for ASTM A105 Carbon Steel and

temperatures below 100F).

 

The gasket type and bolt type are generally specified by the standard(s); however, sometimes the

standards refer to the ASME Boiler and Pressure Vessel Code (B&PVC) for details (see ASME Code

Section VIII Division 1 – Appendix 2). These flanges are recognized by ASME Pipe Codes such as

ASME B31.1 Power Piping, and ASME B31.3 Process Piping.

 

Materials for flanges are usually under ASME designation: SA-105 (Specification for Carbon Steel

Forgings for Piping Applications), SA-266 (Specification for Carbon Steel Forgings for Pressure Vessel

Components), or SA-182 (Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings,

and Valves and Parts for High-Temperature Service). In addition, there are many "industry standard"

flanges that in some circumstance may be used on ASME work.

 

The product range includes SORF, SOFF, BLRF, BLFF, WNRF (XS, XXS, STD & Schedule 20, 40, 80),

WNFF (XS, XXS, STD & Schedule 20, 40, 80), SWRF (XS & STD), SWFF (XS & STD), Threaded RF,

Threaded FF & LJ, with sizes from 1/2" to 16". The bolting material used for flange connection is stud

bolts mated with two nut (washer when required). In Petrochemical industries, ASTM A193 B7 STUD

& ASTM A193 B16 Stud Bolts are used as these have high tensile strength.

 

6.Galvanizing

 

Galvanizing protects the underlying iron or steel in the following main ways:

 

The zinc coating, when intact, prevents corrosive substances from reaching the underlying steel or iron.

 

The zinc protects iron by corroding first. For better results, application of chromates over zinc is also

seen as an industrial trend.

 

In the event the underlying metal becomes exposed, protection can continue as long as there is zinc

close enough to be electrically coupled. After all of the zinc in the immediate area is consumed,

localized corrosion of the base metal can occur.

 

 

Why Choose Us

 

1.One-Stop Service,One Single Source.

2.No MOQ.

3.Best quality,competitive price

4.Fast Reply.

5.On-Time Delivery

6.Professional sales and technical team .

 

FAQ

 

Q1: Are you a factory or a trade company?
A1: We are a professional manufacturer for designing and producing of Large-size products.(View Mor)

Q2: Do you make customized products or finished parts?
A2: All parts are custom made only, and in stock, we can produce based on your drawings.

Q3: Will my drawing be safe after you get it?
A3: Yes, we will not release your design to third party unless with your permission.

Q4: What is the MOQ?
A4: Small order is acceptable, but the more, the cheaper.

Q5: How about the samples?
A5: We are happy to make prototype part or sample for clients to ensure quality standard, but it’s charged according to your drawing.

Contact Details
BoYue Industrial (Shanghai)Co., Ltd.

Contact Person: david

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