Forged Flanges
We are forged flanges manufacturer, supplier and exporter for a wide range of quality industrial forged steel flangesincluding welding neck flange, slip-on flanges, socket weld flanges, blind flanges and other shapes for connection applications in the oil, gas, chemical, wind, pharmaceutical and other industries, manufactured in accordance with ASME , DIN, JIS, GB, ANSI, GOST, EN, BS and other engineering standards.
Pipe flange facing of america system, ring joint face except raised face, large or smalltongue face and groove face, large or smallmale face and female face, all can be manufactured according to standard.
Orifice flange equipped with orifice plate is used to measure the flow.Theere are two symmetrical, radial through holes in flange which is parallel to the sealed face.The distance to the sealed face is 0.94inch(23.9mm). They are equipped with two plugs of size NPT 1/2 mating the threaded hole in the outer end. The diameter of through holes as following.
Forged Flanges Type：
SW;WN;SO;BL;LJ;TH ; FF,RTJ
Forged Flanges Forming:
Forged
Forged Flanges Size:
1/2”—120”
Forged Flanges Standard:
GB9112~9124, GB13402, SH3406, HG20615~20623, HG20592~20605, JB74~90, ISO7005-I, ASME/ASNI B16.5/16.36/16.47A/16.47B, MSS SP44, JIS B2220-2001, DIN 2527/2636/2637/2638/2566/2576/2632/2633/2635/2642/2653/2655/2656, DIN2628/DIN2629, DIN2634 , BS 1560-3.1, BS4504-3.1, API 7S-15, API 7S-43, API 605, NFE 29-203 GOST12821 GOST 12820
Forged Flanges Rating:
ANSI 150LBS~2500LBS
DIN PN6~PN400
JIS 5K~30K
HG PN0.25~PN25
Forged Flanges Material:
Stainless Steel：
OCr18Ni9, 0Cr18Ni9Ti, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, 00Cr19Ni10, 00Cr17Ni14Mo2, ASTM A182-F304, F304L, F304H, F316, F316L, F321, F321H, F347H, F317,
Super Stainless Steel:
ASTM A182-904L, 317, 317L
Duplex Steel：
ASTM A182-F51, F53, F44
Special Steel：
N06600, N08800, N08811
Alloy Steel：
16Mn, 12CrMo, 15Cr5Mo, Cr5Mo, 12Cr1MoV, ASTM A182-F11, F22, F91 F9 F5
Pipe Line：
ASTM A694-F42, F46, F48, F50, F52, F56, F60, F65, F70, F80
Carbon Steel：
ASTM A350-LF2, LF3 Q235A, 20#, ASTM A105
Tolerance of flange (ASME /ANSI standard)
|
Thread ,Socket-welding,Slip-on, Lap joint and Blind flange Tolerence |
Welding neck raised face flange tolerence |
||||
|
Outside Diameter |
≦24" |
±1.6mm |
Outside Diameter |
≦24" |
±1.6mm |
|
>24" |
±3.2mm |
>24" |
±3.2mm |
||
|
Inside Diameter |
Threaded |
Within limits on boring gauge |
Inside Diameter |
≦10” |
±0.8mm |
|
Socket-welding |
ID≦10"+0.8mm ID≧12"+1.6mm |
<20” |
±1.6mm |
||
|
Slip on |
≧20” |
-1.6mm +3.2mm |
|||
|
Lap joint |
Diameter of hu at base |
≦24” |
±1.6mm |
||
|
Outside Diameter of Hub |
≦5" |
+2.4mm -0.8mm |
>24” |
±3.2mm |
|
|
≧6" |
+ 4.0mm -0.8mm |
Diameter of hub at point of welding |
≦5" |
-0.8mm +2.4mm |
|
|
Diameter of contact face |
1/16”raised face |
±0.8mm |
≧6" |
-0.8mm +4.0mm |
|
|
1/4”raised face tongue&groove male,female |
±0.4mm |
Diameter of contact face |
1/16”raised face |
±0.8mm |
|
|
Diameter of counterbore |
Same as for inside diameter |
1/4”raised face tongue&groove male,female |
±0.4mm |
||
|
Drilling |
Bolt circle |
±1.6mm |
Drilling |
Bolt circle |
±1.6mm |
|
Bolt hole spacing |
±0.8mm |
Bolt hole spacing |
±0.8mm |
||
|
Eccentricity of bolt circle with respect to facing |
<2-1/2” Max 0.8mm ≧3” Max 1.6mm |
Eccentricity of bolt circle with respect to facing |
<2-1/2” Max 0.8mm ≧3” Max 1.6mm |
||
|
Eccentricity of bolt circle with respect to bore |
Max 0.8mm |
Eccentricity of bolt circle with respect to bore |
Max 0.8mm |
||
|
Eccentricity of facing with respect to bore |
Max 0.8mm |
Eccentricity of facing with respect to bore |
Max 0.8mm |
||
|
Thickness |
≦18” |
0-+3.2mm |
Thickness |
≦18” |
1-+3.2mm |
|
≧20” |
0-+4.8mm |
≧20” |
1-+4.8mm |
||
|
Length thru hub |
≦10” |
±1.6mm |
Length thru hub |
≦10” |
±1.6mm |
|
≧12” |
±1.6mm |
≧12” |
±1.6mm |
||
Send product request
Other supplier products
 |
Equal Tee | Product description We are manufacturer, supplier, and exporter of equal tees, which are also understood as straight tees, these equal tees have a ... |
 |
Aerospace Tubing | Product description Aerospace TubingDescription HUASHANG affords a broad range of grades and dimensions of stainlesss steel tubing for the aerospac... |
 |
Aerospace Tubing | Product description Aerospace Tubing Description HUASHANG, as a trustworthy aerospace tubingmanufacturer, affords affords a broad range of grades... |
 |
Forged Rings | Product description Forged Rings Features Forming type :forging Rating: ANSI150LBS~2500LBS, DIN PN6~PN160 JIS 5K~30K, HG PN0.25~PN25 Size :15mm&mda... |
 |
Spectacle Blind Flanges | Similar Products Long Neck Flanges for sale at very competitive factory price! Long Neck Flanges Blind Flanges Blind flange is also called blind bo... |
Same products
 |
Co2 Fractional Laser divides | Seller: Beijing Mega Beauty Technology Co.,Ltd | Co2 Fractional Laser divides the laser beam into multiple, smaller beams spaced regularly to... |
 |
Fractional CO2 Laser Skin Resurface | Seller: Beijing Mega Beauty Technology Co.,Ltd | Fractional CO2 Laser Skin Resurface Fractional CO2 Laser Skin Resurface Model: MBT-Co2 is ... |
 |
Medical Aesthetic Devices | Seller: Beijing Mega Beauty Technology Co.,Ltd | Medical Aesthetic Devices Medical Aesthetic Devices is a leading Medical Aesthetic Device... |
 |
HIFU SMAS Lifting | Seller: Beijing Mega Beauty Technology Co.,Ltd | HIFU SMAS Lifting , the newest non-surgical method of skin lifting for the face and body. On... |
 |
Body Slimming Machine | Seller: Beijing Mega Beauty Technology Co.,Ltd | Body Slimming Machine MBT-Laser Body Slimming Machine Use cutting-edge technology to sl... |
