We are best auto weld pipe fitting manufacturer in China over 20 years. All the large sizes weld fitting with plate from reputation factory, we have full weld fitting production line include auto cutting welding plates , CAD forming plate, auto weld, over DN2500 sand blasting machine and NDE test laboratory, we also offer surface 3PE, FBE, EPOXY coating service.
Large size auto weld pipe fitting, Big size auto weld pipe fitting
Stainless Steel
ASTM A403 WP316/316L, ASTM A403 SA / A 774 WP-S, WP-W, WP-WX 304/304L, ASTM A182 F316L, 304L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404
Dimensions : ASME/ANSI B16.9, ASME B16.28, MSS-SP-75, AWWA C208, ASME B31.4
Size : 48" (1200 NB) to 144" (3400NB)
Type : SAW Auto Welded / SAW Auto Fabricated/GTAW/ SAW/ SMAW
Thickness : Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS and etc.
Insepection: All weld seam NDE inspection
Design: Weling joint design, weld map design, dimension pressure design, ASME B31.4,WPS, PQR
Welding material: SFA specification ER70S-6, E7018-1 H4,EH12K etc
Heat treatment: PREHEAT,POSTWELD HEAT TREATMENT,Normalized, Temper etc
Steel Fittings, Butt Weld range:
90° Long Radius Elbow
90° Short Radius Elbow
45° Long Radius Elbow
45° Short Radius Elbow
180° Long Radius Elbow
180° Short Radius Elbow
Equal Tee
Reducing tee
Lateral
Dummy pipe elbow
WYE tee
Cross
Reducing Cross
Concentric Reducer
Eccentric Reducer
Pipe Cap
Stub End
We also supply following materials:
Carbon Steel
ASTM A234, ASME SA234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
Low Temperature Carbon Steel
ASTM A420 WPL3, A420 WPL6
Stainless Steel
ASTM A403 WP316/316L, ASTM A403 SA / A 774 WP-S, WP-W, WP-WX 304/304L, ASTM A182 F316L, 304L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404
Duplex & Super Duplex Steel
ASTM A 815, ASME SA 815 UNS NO S31803, S32205. UNS S32750, S32950.
Audited Supplier 
){kind=link}