
Tianjin Caizhida Trading Co.,Ltd
Steel Pipes,PipeFittings,Flanges,Valves
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Comprehensive range of steel pipes and pipe fittings meeting international standards for oil & gas, construction, water supply, and industrial applications
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Steel Pipes
Seamless and welded steel pipes for oil, gas, water, and structural applications

Popular Products
Seamless Steel Pipe
Specs: API 5L seamless steel pipes for oil and gas transportation pipelines with superior strength High strength Carbon Steel pipes: API 5L X60/X65 PSL2 + NACE MR01.75/MR0103 Seamless carbon steel pipes for low temperature service: ASTM/ASME A/SA 333 GR6, GR6/X52 MODIFIED + NACE MR01.75/MR0103 Seamless carbon steel pipes for high temperature service: API 5L GRB, X42, X52 + NACE MR 01.75 ASTM/ASME A/SA 106 GRB, 53 GR.B + NACE MR01.75/MR0103 EN 10216-2 P265GH
Standard: API/ASTM/DIN/EN/JIS
ASTM A106 Seamless Pipe
Specs: ASTM A106 seamless carbon steel pipe for high-temperature and high-pressure service Seamless galvanized carbon steel pipes with plain or threaded ends: API 5L B/X42, ASTM/ASME A/SA 106/53 Gr.B + NACE MR01.75/MR0103 GALVANIZED ASTM A53 Seamless carbon steel material special grades according to: API 5L X70 + NACE MR01.75/MR0103 ERW and SAW welded carbon pipes according to: API 5L GR.B, X52 + NACE ASTM/ASME A/SA 671 Gradi e Classi differenti ASTM/ASME A/SA 672 Gradi e Classi differenti EN 10208-2
Standard: API/ASTM/DIN/EN/JIS
DIN1629 Seamless Pipe
Specs: DIN1629 seamless steel pipes for mechanical engineering and plant construction
Standard: API/ASTM/DIN/EN/JIS
EN10216 Pressure Pipe
Specs: EN10216 seamless steel tubes for pressure purposes and high-temperature applications Seamless stainless steel pipes for nuclear applications: RCC-M, M3304 Class 1, 2 and 3 austenitic stainless steel pipes and tubes Duplex and Super Duplex Steel seamless pipes: ASTM A 790 UNS S31803/S32205 ASTM A 790 UNS S32760 Seamless stainless steel pipes, fittings and flanges: ASTM/ASME A/SA 312 TP 304/304L, TP 316/316L, TP 321/321H, TP 347/347N ASTM/ASME A/SA 269 TP 304/304L, TP 316/316L ASTM/ASME A/SA 403
Standard: API/ASTM/DIN/EN/JIS
JIS G3454 Carbon Pipe
Specs: JIS G3454 carbon steel pipes for pressure service in power plants and gas plants Seamless alloy steel pipes, fittings and flanges for high temperature service and Power Generation: ASTM/ASME A/SA 335 P91, P9, P5, P11, P22 ASTM/ASME A/SA 234 WP5, WP11 EN 10216-2 X10CrMoVNb9-1 X11CrMo9-1 X11CrMo5 10CrMo5-5 10CrMo9-10 Seamless alloy steel pipes, fittings and flanges for high temperature service and Power Generation: ASTM/ASME A/SA 335 P92 SAW alloy steel pipes according to: ASTM/ASME A/SA 691 Diffe
Standard: API/ASTM/DIN/EN/JIS
ERW Welded Steel Pipe
Specs: ERW welded steel pipes with cost-effective solutions for various applications Welded Duplex and Super Duplex Steel pipes: ASTM A 928 UNS S31803/S32205 ASTM A 928 UNS S32750/S32760 Welded stainless steel pipes: ASTM/ASME A/SA 358 TP 304/304L, TP 316/316L, TP 321/321H EN 10217-5 Different Grades and Classes
Standard: API/ASTM/DIN/EN/JIS
Pipe Fittings
Complete range of pipe fittings including elbows, tees, reducers, and caps

Popular Products
90° Long Radius Elbow
Specs: 90° long radius elbows for changing pipeline direction with minimal pressure drop Stainless steel ASTM A403 WP 304/304L WP 316/316L WP 321/321H Alloy steel ASTM A234 WP5 WP11 WP22 WP9 WP91 Carbon steel ASTM A420 WPL 6 ASTM A234 WPB
Standard: API/ASTM/DIN/EN/JIS
Equal Tee
Specs: Equal tees for branching off main pipelines at 90 degrees Stainless steel ASTM A182 F 304/304L F316/316L F321/321H Alloy steel ASTM A182 F5 F11 F22 F9 F91 Carbon steel ASTM A350 LF2 ASTM A105
Standard: API/ASTM/DIN/EN/JIS
Concentric Reducer
Specs: Concentric reducers for connecting pipes of different diameters
Standard: API/ASTM/DIN/EN/JIS
90° Short Radius Elbow
Specs: 90° short radius elbows for compact installations
Standard: API/ASTM/DIN/EN/JIS
Pipe Cap
Specs: Pipe caps for sealing pipe ends and protecting from contamination
Standard: API/ASTM/DIN/EN/JIS
45° Elbow
Specs: 45° elbows for gentle pipeline direction changes
Standard: API/ASTM/DIN/EN/JIS
Flanges
Weld neck, slip-on, blind, and threaded flanges in various standards

Popular Products
Weld Neck Flange
Specs: Weld neck flanges for high-pressure pipeline connections
Standard: API/ASTM/DIN/EN/JIS
Slip-On Flange
Specs: Slip-on flanges for easy alignment in low to medium pressure applications
Standard: API/ASTM/DIN/EN/JIS
Blind Flange
Specs: Blind flanges for sealing pipe ends and pressure vessels
Standard: API/ASTM/DIN/EN/JIS
Threaded Flange
Specs: Threaded flanges for connecting pipes without welding
Standard: API/ASTM/DIN/EN/JIS
Socket Weld Flange
Specs: Socket weld flanges for small-diameter high-pressure piping
Standard: API/ASTM/DIN/EN/JIS
Lap Joint Flange
Specs: Lap joint flanges for systems requiring frequent disassembly Carbon steel A 105N – A350 LF2 Low Alloy steel A182 F5 – A182 F9 – A182 F11 – A182 F22 – A181 F91 Austenitic Stainless Steel A182 F304/F304L – A182 F304H – A182 F316/F316L/ F316H A182 F321/F321H
Standard: API/ASTM/DIN/EN/JIS
Valves
Gate, globe, check, ball valves for industrial and pipeline applications

Popular Products
Gate Valve
Specs: Gate valves for tight shut-off in oil and gas pipelines
Standard: API/ASTM/DIN/EN/JIS
Globe Valve
Specs: Globe valves for flow regulation in steam and chemical systems
Standard: API/ASTM/DIN/EN/JIS
Check Valve
Specs: Check valves for preventing backflow in pump discharge
Standard: API/ASTM/DIN/EN/JIS
Ball Valve
Specs: Ball valves for quick shut-off in oil and gas applications
Standard: API/ASTM/DIN/EN/JIS
Butterfly Valve
Specs: Butterfly valves for flow regulation in water treatment
Standard: API/ASTM/DIN/EN/JIS
Plug Valve
Specs: Plug valves for dirty applications in oil and gas
Standard: API/ASTM/DIN/EN/JIS
Coated Pipes
Anti-corrosion coated pipes with 3PE, FBE, epoxy coatings

Popular Products
3PE Coated Steel Pipe
Specs: 3PE coated pipes for underground and underwater pipeline protection
Standard: API/ASTM/DIN/EN/JIS
FBE Coated Steel Pipe
Specs: FBE coated pipes with superior corrosion resistance
Standard: API/ASTM/DIN/EN/JIS
Epoxy Coated Steel Pipe
Specs: Epoxy coated pipes for water and sewage applications
Standard: API/ASTM/DIN/EN/JIS
Coal Tar Enamel Coated Pipe
Specs: CTE coated pipes for long-term underground protection
Standard: API/ASTM/DIN/EN/JIS
PU Coated Steel Pipe
Specs: PU coated pipes with excellent abrasion resistance
Standard: API/ASTM/DIN/EN/JIS

Popular Products
GI Pipe Schedule 40
Specs: Galvanized iron pipes Schedule 40 for construction and plumbing
Standard: API/ASTM/DIN/EN/JIS
GI Pipe Schedule 80
Specs: GI pipes Schedule 80 for higher pressure applications
Standard: API/ASTM/DIN/EN/JIS
BS 1387 GI Pipe
Specs: BS 1387 galvanized pipes for British Standard applications
Standard: API/ASTM/DIN/EN/JIS
JIS G3444 GI Pipe
Specs: JIS G3444 galvanized pipes for Japanese Standard applications
Standard: API/ASTM/DIN/EN/JIS
Galvanizing Kettle
Specs: Galvanizing kettles for hot-dip galvanizing processes
Standard: API/ASTM/DIN/EN/JIS
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