ASTM welding neck, slip on, blind, lap joint, socket weld, threaded

ISO plate(type 01), loose plate(type 02/03), loose(type 04), blank(type 05), welding neck(type 11), hubbed slip-on(type 12), hubbed threaded(type 13), hubbed socket welding(type 14), integral(type 21), weld-on plate collar(type 32), lapped pipe end(type 33), welding neck collar(type 34)

GB PL, SO, WN, IF, SW, TH, PJ/SE, PJ/RJ, BL, BL(s), manhole

JIS slip on plate, slip on hubbed, socket welding, lap joint, threaded, integral, blank

EN plate(type 01), loose plate(type 02), loose plate(type 04), blind(type 05), weld-neck(type 11), hubbed slip-on(type 12), hubbed threaded(type 13), integral(type 21), weld-on collar plate(type 32), lapped pipe end(type 33), weld-neck collar(type 34), weldring neck(type 35), pressed collar with long neck(type 36), pressed collar(type 37)

BS welding neck, slip on

Special type

Orifice flanges, spectacle blind, ring forgings, orifice flange, hydraulic flange in accordance with customer provided drawings.

Material grades

Stainless steels

ASTM A182 F304/304L/304H, F316/316L, F321/321H, F316Ti, F317L, F309S, F310S, F51/S31803, F53/S32750, F55/S32760, F44(S31254)

EN 1.4301, 1.4307, 1.4401, 1.4404, 1.4410, 1.4432, 1.4541, 1.4462, 1.4547, 1.4571, 1.4501, 1.4529

GB 06Cr19Ni10(0Cr18Ni9), 06Cr17Ni12Mo2(0Cr17Ni12Mo2), 07Cr19Ni10, 022Cr19Ni10(00Cr19Ni10), 022Cr17Ni12Mo2(00Cr17Ni14Mo2), 022Cr19Ni13Mo3, 06Cr17Ni12Mo2Ti, 06Cr25Ni20, 06Cr18Ni11Ti, 07Cr19Ni11Ti

JIS SUS304/304L/304H, SUS316/316L, SUS309/S, SUS321, SUS321H, SUS316Ti, SUS317L, SUS310S, SUS347, SUS347H, SUS329J1/J3L/J4L

Carbon steels

ASTM A105, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70

EN S235JRG2, P235GH, P245GH, P355NH, P265GH

DIN St 37.2, C22.8, C21

JIS SF 390A, SFVC1, SF 440A, SFVC 2A

GB 20#, Q235, 16Mn

BS ASTM A105 Grade Ⅱ

Alloy steels

ASTM A182 F1, F5a, F9, F11, F12, F22, F91

DIN St45.8/Ⅲ

GB 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1

Surface treatment

Rustproof oil, painting, lacquer, electrical galvanize, hot dip galvanizing, shot blasting, coating nylon


ANSI B16.5, ANSI B16.47(Series A/B), AWWA C207

ISO 7005-1

GB/T 9112~ 9124, GB/T 13402, GB/T 3406, GB/T 10746, GB/T 10747, HG 51519~21599, GB/T 2506, HG 20592~20605, HG 20615~20623, HG 5010~HG 5028, HGJ 44~HGJ 65, JB/T 74, JB/T 80, JB/T 81~JB/T 86, JB 1157~JB 1160, JB 4700~JB 4707

EN 1092-1

JIS 2220, JIS 2238

DIN2502, DIN2503, DIN2573, DIN2576, DIN2641/2642, DIN2655/2656, DIN2627~ DIN2635, DIN2565/2566, DIN2527, DIN2565~2569

BS 3293

Range of Sizes

DN10~DN3600, PN 2.5~PN 420

NPS 1/2~NPS 60, Class 150~Class 2500

NPS 1/2~NPS 120, 86 Psi~275 Psi

10A~1500A, 10K~63K