Different Size Carbon Rectangular Steel Pipe for Construction

1. High frequency HF Welded steel pipe
1) OD: 1/2"-48"
2) WT: SCH20-SCH80
3) Material: Q235, Q345, A53
4) CE, BV, ISO,
2. About us
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Tianjin Baolijin Pipe production Co., ltd is an subcompany of
Sangong Group. The group has 7 subcompanies and specializes in manufacturing
ERW black and hot-dip galvanized pipe (round and square/rectangular), pre-galvanized
Pipe, black and hot galvanized channel steel, H section, flat bar, angle steel, rotary blade
For farm and garden, highway fence, light pole.

Sangong group has:
1). 30 steel pipe production lines,
2). 10 galvanized pipe lines,
3). 9 rotary blade production lines,
4). 5 light pole production lines etc.
Welcome OEM and ODM order


We warmly welcome customers to visit our factories

Description	High frequency HF Welded steel pipe
Standard	ASTM A53, BS1387, BS EN10217/10219, GB/T3091, DIN2444, etc.
Material	usually Q195-235, can do Q345 at MOQ of at least 100 tons. The closed material to Q235: St37-2, R St37-2, Fe360B, S235JR, SS400, etc.
Outside Diameter	21.3mm-325mm
Wall Thickness	0.8mm-10.31mm
Surface Treatment	Black Painted or Color Painted, Oiled or Bared
Length	common 4.5-6.5m, can up to 12m, can also cut into any length as client' s requirements
End Treatment	Plain, Bevelled, or Threaded
Packing	1) pack in hexagonal bundles by steel strips only 2) pack in bundles first, then pack in water proof plastic wrap 3) in bulk ( as the pictures as followed )
Brand	Tianjin BAOLIJIN
Technique	ERW
Welded Line Type	Longitudinal
End Protector	plastic cap, coupling or other pipe fittings
Certificate	ISO9001-2008; Supplier Assessment
Secondary Processings	threading, cutting, welding, drilling, painting, oiling, grooving, stamping, etc.