About Us


Tianjin Huilitong Steel Pipe in China specialized in manufacturing Long Electric Welded ERW and SSAW Spiral Welded Pipes over 15 years.


API 5L(License Number:0654)

ISO9001-2008,ISO 14001

LR Lloyd's Register-Certificate of Conformity of Factory Production Control EN10219-1/2,EN10210-1/2

LR Lloyd's Register-Certificate Schedule PED 97/23

EN10217-1,API 5L,ISO 3183

All materials are supplied with inspection certificates according to EN 10204 3.1 or 3.2 and/or Third Party Body if requested by the customer.

Steel Pipe Products

Electric Resistance Welded Steel Pipe (ERW)

Longitudinal weld ERW/HFW Pipes:


ASTM A53 GR.B,API 5L PSL1/PSL2 B/X42/X52/X60/X70

EN10219 S355JR/S355J0H/S355J2H/EN10217 P235GH

AS/NZS 1163 C350L0/ASTM A522 GR.3


114 mm - 610 mm diameter range

Wall thickness: 4,5 mm - 15,88mm


9.144 meters (30 Feet)

12.192 meters(40 Feet)

18.288 meters (60 Feet)

Other lengths available on request


Spiral Welded Pipe

Submerge arc-welding (SAW) process

Spiral seam-welded large-diameter pipes(SSAW):


ASTM A572 Gr.50,ASTM A252 GR.2/GR.3

API 5L PSL1/PSL2 B/X42/X52/X60/X70

EN10219 S355JR/S355J0H/S355J2H/EN10217 P235GH

219mm - 2540mm diameter range

Wall thickness: 6,0 mm - 25,4mm

Length 6M ~ 40M


Longitudinal welded pipes for structural applications

• Size range from diam. 610 mm to diam.1219 mm.

• Quality: S275J0H /S355JR,S355J0H / S355J2H

• Standards: EN 10219 1-2

Anti corrosion systems are applied after surface preparation and rope protection for transport.

Coatings and Linings

External coatings

Fusion Bonded Epoxy Coating

Three Layer Polyethylene (3LPE) and Polypropylene (3LPP)

Liquid Epoxy Coating

Internal Linings

Liquid Epoxy Lining

We comply with CAN / CSA Standards Z245.21, DIN 30670,CAN / CSA Z245.20, AWWA C213 ,AWWA C210

Liquid Epoxy in accordance with AWWA C210

Fusion Bonded Epoxy in accordance with AWWA C213