





Opposite ring flange
Opposite ring flange
- Commodity name: Opposite ring flange
Product Introduction
Discover premium Opposite Ring Flanges with reliable strength, corrosion resistance, and international standards. NFI offers forged flanges with ABS, BV, LR, DNV, CCS certifications, customized sizes, and fast global delivery.
Material
Product | Flanges | ||||||
Standards | EN 1092-1、BS 4504、BS10、ASME B16.5、ASME B16.47、ASME B16.48、MSS SP-44、DIN 86044、AWWAC207、HG/T 20592~20635、SH/T 3406、GB/T 9124、GB/T 9115、GB/T 13402 | ||||||
Material | Material Grade | Material Standard |
Dimensions | ||||
A105、A105N | ASTM A105 | DN15(1/2")~DN3600(144") | |||||
F304、F304L、F304H、F316、F316L、F316H、 F316N、F321、F321H、F347、F347H、F310、 F310H、F317、F317L、F44、F904L、F51、F53、F55、F60、F22、F11、F5、F9 |
ASTM A182 | DN15(1/2")~DN3600(144") | |||||
Gr.1 | ASTM A181 | DN15(1/2")~DN3600(144") | |||||
LF1、LF2、LF3、LF4、LF5、LF6 | ASTM A350 | DN15(1/2")~DN3600(144") | |||||
F42、F46、F48、F50、F51、F52、F53、F56、F60、F65、F70 | ASTM A694 | DN15(1/2")~DN3600(144") | |||||
ST37.2 | DIN 17100 | DN15(1/2")~DN3600(144") | |||||
C22.8 | DIN 17243 | DN15(1/2")~DN3600(144") | |||||
P245GH、P250GH、P265GH、P280GH、16Mo3、14CrMo4-5 | EN 10222-2 | DN15(1/2")~DN3600(144") | |||||
X6CrNiTi18-10、X5CrNiMo17-12-2 | EN 10222-5 | DN15(1/2")~DN3600(144") | |||||
P285NH、P285QH | EN 10222-4 | DN15(1/2")~DN3600(144") | |||||
L7C、L1、B8、B8LN | ASTM A320 | DN15(1/2")~DN3600(144") | |||||
Gr.1、Gr.2、Gr.3、Gr.4 | ASTM A266 | DN15(1/2")~DN3600(144") | |||||
Q245R、Q345R、12Cr1MoVR、 12Cr2Mo1R15CrMoR、14Cr1MoR、Q370R |
GB 713 | PN2.5-PN100/DN10~DN2000 Class150 ~Class60C |
|||||
Q235A、Q235B、20# | GB/T 700、 GB/T711 |
PN2.5-PN100/DN10~DN2000 Class150 ~Class600 |
|||||
16MnDR、09MnNiDR | GB/T 3531 | PN2.5-PN100/DN10~DN2000 Class150 ~Class600 |
|||||
06Cr19Ni10、022Cr19Ni10、06Cr18Ni11Ti、 06Cr17Ni12Mo2、022Cr17Ni12Mo2、 06Cr18Ni11Nb |
GB/T 4237 | PN2.5-PN100/DN10~DN2000 Class150 ~ Class600 |
|||||
20、16Mn、15CrMo、12Cr1MoV、12Cr2Mo1、 20MnMo、12Cr5Mo、10Cr9Mo1VNbN |
NB/T 47008 | PN2.5-PN160/DN10~DN1000 Class 150 (PN20)~Class 2500 (PN420) |
|||||
16MnD、20MnMoD、09MnNiD、08MnNiCrMoVD | NB/T 47009 | ||||||
06Cr19Ni10/S30408、022Cr19Ni10/S30403 06Cr17Ni12Mo2/S31608、 022Cr17Ni12Mo2/S31603 06Cr18Ni11Ti/S32168、07Cr18Ni11Nb/S34779 |
NB/T 47010 | ||||||
F52、F60、F65、F70、F42、F46、F48、F50、F51、F52、F53、F56、F60、F65、F70 | ASTM A694 | DN15(1/2")~DN3600(144") | |||||
UNS N08825、UNS N06625、C276、 MONEL400/500、UNS N02200、UNS N02201 |
ASTM B564 | DN15(1/2")~DN3600(144") | |||||
UNS C70600、UNS C71500 | ASTM B151 | DN15(1/2")~DN3600(144") | |||||
Grade F-1、Grade F-2、Grade F-3、Grade F-5、Grade F-7、Grade F-9、Grade F-11、Grade F-12 | ASTM B381 | DN15(1/2")~DN3600(144") |