Gi Carbon Square Steel Pipes Welded Tube Tianjin Factory

• Customization: Available
• Type: Welded
• Technique: ERW
• Surface Treatment: Galvanized
• Usage: Construction & Decoration
• Section Shape: Rectangular
• Size: 10*10-400*400mm
• Grade: Q235, Q345
• Thickness: 0.6-12mm
• Length: Stock 6m, Can Be Customer Made
• Zinc Coating: Usually 40G/M2, Can Be Customer Made
• Transport Package: in Bundle
• Specification: API-5L ASTM-A53, Bs1387-1985, GB/T3091-2001
• Trademark: TYT
• Origin: Tianjin China
• HS Code: 73066100
• Production Capacity: 500, 000mt/Year

Product Description

Galvanized Steel Pipe
Galvanized Square Hollow Section Q235 Q345



I.Product Basic Info:

Shape:	round/sqaure/rectangular/oval               or other special section tube
OD:	20-219.1mm, WT: 0.8-12mm
Size:	10*10-400*400mm,WT:0.8-12mm
Size:	10*20-400*600mm, WT:0.8-12mm
length:	0.3-13m     (as customers' request)
Surface:	Pre-galvanized/Hot Dip Galvanized/Oiled/Painted/Bared , can be dealed as customers'need
Zinc Coating:	50-150g/m2 for Pre- galvanized, more than 200g/m2 for hot dip galvanized.or as clients'need
Material:	Q195/Q215/Q235/Q345/Q195-Q235 ABCD
Standard:	ASTM-A53   /BS 1387-1985/   GB/T 3091-2001 for round pipe
	ASTM A500 /GB/T3094       for square/rectangular pipe
Manufacturing Technique	Weld/Seamless/     ERW/ SSAW/ LSAW /     Cold Drawn/ Hot Drawn
Ends:	Plain /Beveled/ Threaded with sockets coupling and plastic caps/ Necking down/ Expanding neck/ Punching holes

 2.Product  Chemical Composition & Mechanical Properties :  

Grade	Chemical Composition					Mechanical Properties
	C	Mn	Si	S	P	Yield	Tensile	Elongati
						Strength Mpa	Strenth Mpa	-on %
Q195	0.06-0.12	0.25-0.50	≤0.30	≤0.045	≤0.05	≥195	315-430	≥33
Q215	0.09-0.15	0.25-0.55	≤0.30	≤0.05	≤0.045	≥217	335-450	≥27
Q235	0.12-0.20	0.30-0.67	≤0.30	≤0.045	≤0.04	≥235	375-500	≥26
Q345	≤0.20	1.00-1.60	≤0.55	≤0.04	≤0.04	≥345	470-630	≥22

1) ISO 9001-2000 Standard
2) Market: All of the world
3) Application: Widely
4) Ensure quality and after-sales service
5) O. D.: 15*15~400*400mm
6) W. T.: 0.8-14.0mm
7) Length: 3-12m
8) Zinc content: 220--400g/square metre

Our services:

1.Special design avaliable according to requirements.

2.All production processes are under ISO 9001-2008 strictly

3.Free sample 

4.Acceptable for any third party inspection(SGS,BV...)

5.OEM is ok.

6.Visit factory any time. 

All items of our products and related tests as follow : 

1.ERW black round pipe (ASTM A53,GB..)

2.Weld black square/rectangular pipe(ASTM A500,GB,...)

3.Hot dip galvanized round pipe (BS 1387,ASTM A53,GB ,...)

4.Hot dip galvanized square/rectangular pipe(ASTM A500,GB...)

5.Pre-galvanized square/rectangular/round pipe,cold rolled black annealed or bright finished pipe.

6.Spiral steel pipe

7.Seamless pipe (ASTM A53,A106B,)

8.Oval pipe in galvanized and black surface

9.LTZ... special sizes pipe

10.Steel prop , steel plank,steel scaffolding pipe and accessories... steel constrctution material

11.Steel angle, Flat bar,round bar,sqaure bar, 

12.H,I,U,C,T,Y,W...steel beam/channel

13.Deformed steel bar

14.Hot rolled& cold rolled steel sheet/coil in black,galvanized,color coated surface.