Carbon Steel Welded Rectangular Steel Pipe

• Surface Treatment: Anti-Rust Oiled, Black Annealed
• Size: 100X400X8mm X 6meters
• Thickness: 6mm
• Length: 6meters
• Thickness Tolerance: +/- 0.2mm
• Transport Package: Strap in Bundles with Steel Strip, Ani-Tust Oil.
• Model NO.: 100x400mm x 8mm
• Specification: 100 x 400 x 8mm x6meters
• Trademark: Wanrunda
• Origin: Tianjin and Qingdao
• HS Code: 7306610000
• Production Capacity: 100000mt/Year

Product Description

Qingdao Wanrunda Imp and Exp Co.,ltd mainly supply and export various of Metal and Steel material (such as Galvanized steel pipe/tube; Welded steel pipe/tube; Square pipe/tube; Seamless steel pipe; Stainless steel tube; Galvanized steel coil; Stainless steel coil; Angle steel; H beam; Channel beam; C beam/Riffled sheet; Square bar etc) .   
At the same time we operate metal processing business, such as stamping, bending, welding, drilling, galvanizing, oiling, painting, powder coating etc.


Product introduction:
PRODUCT: Rectangular Steel Hollow Section
STEEL GRADE: Q345B low Alloy steel
SIZE RANGE: 200 x 400 x 8mm x 8meters
THICKNESS: 8mm
LENGTH RANGE: Normal-6meters or 12meters; Also accept fixed length
SURFACE TYPE: anti-rust oiled, black annealed
PACKAGING: Standard exporting packaging
APPLICATION: Steel Structure, Fence, Road sign, Frame, Decorative tubes etc.
Other MS Steel Products: Steel Angle/Steel Sheet/API PIPE etc

Introduction of our steel hollow section:
Commodity:  HOT ROLLED STEEL HOLLOW SECTION
Dimension range:  SHS: 20X20-600X600mm, RHS:20X30-400X600mm,CHS:OD19-720mm
Wall thickness:  1.50-20 mm
Length:  1-12meters( normal length6000mm, accept fixed length)
Material:  Q195 and S235 Mild Steel ,S355 Low Alloy steel, ASTM A500 Gr.B, ASTM A36,
            S355JRH,SS400
Surface treatment:  Anti-rust Oiled surface,Black
Thickness tolerance:  +/- 0.2mm
OD. Tolerance:  +/- 0.2mm
Technique:  Hot rolled
Application: construction,Steel structure, Road sign,Steel frame,light industry,
               automobile industry, agriculture, etc.
MOQ:  10MT
Package: be packed in bundle, wrapped with steel strips
Payment term:  T/T or L/C at sight
Delivery time:  within 15-20days after receiving the deposit
Remark:  Special spec is available

Mechanical character & Chemical element of normal material:

Material Chemical Composition (%)	Q195	C	Mn	Si	S	P
		0.06-0.12	0.25-0.50	≤0.30	≤0.050	≤0.045
		Tensile strength: 315-430(Mpa)
		Yield strength:195(Mpa)
		Elongation:33
	S235	C	Mn	Si	S	P
		0.12-2.0	0.3-0.70	≤0.30	≤0.045	≤0.045
		Tensile strength: 375-460(Mpa)
		Yield strength:235(Mpa)
		Elongation:26
	S355	C	Mn	Si	S	P	V
		≤0.20	≤1.70	≤0.55	≤0.040	≤0.040	0.02-0.15
		Tensile strength: 470-630(Mpa)
		Yield strength:345(Mpa)
		Elongation:21

Process flow of Rectangular and Square steel pipe:

Common Sizes of Steel Hollow Section
Square (SHS)		Rectangular(RHS)		Circle (CHS)
Out dia. (mm)	Wall thickness (mm)	Out dia. (mm)	Wall thickness (mm)	Out dia. (mm)	Wall thickness (mm)
10x10	0.5-1.0	10x20	0.6-1.0	10	0.5-1.0
12x12	0.5-1.0	12x25	0.6-1.0	12	0.6-1.0
16x16	0.6-1.2	20x40	0.6-1.6	16	0.6-1.0
19x19	0.6-1.5	25x50	0.8-2.75	19	0.6-1.5
20x20	0.6-1.6	30x50	0.8-3.0	20	0.6-1.5
25x25	0.8-2.75	30x60	0.8-3.0	21.5	0.6-1.5
30x30	0.8-2.75	40x60	1.0-4.0	25	0.8-2.75
32x32	1.0-3.0	40x80	1.5-4.0	27	0.8-2.75
38x38	1.0-3.0	50x75	1.5-4.0	32	0.8-3.0
40x40	1.0-3.5	50x100	2.0-6.0	38.1	1.0-3.0
50x50	1.0-5.0	50x125	2.0-6.0	42.5	1.0-3.5
60x60	1.0-6.0	50x150	3.0-6.0	48.4	1.0-5.0
63.5x63.5	1.0-6.0	60x80	1.5-6.0	50.8	1.0-5.0
70x70	1.5-6.0	60x100	2.0-6.0	63.5	1.0-6.0
75x75	1.5-6.0	60x120	2.0-6.0	68	1.2-6.0
80x80	2.0-6.0	75x100	2.0-6.0	70	1.2-6.0
90x90	2.0-6.0	75x125	2.0-6.0	73	1.4-6.0
100x100	2.3-6.0	75x150	3.0-6.0	76	1.4-6.0
120x120	3.0-6.0	80x120	2.0-6.0	80	2.0-6.0
125x125	3.0-6.0	80x160	3.0-6.0	89	2.0-6.0
150x150	3.5-8.0	100x150	4.0-12	90	2.0-6.0
200x200	4.0-12	100x175	4.0-12	95	2.0-6.0
250x250	5.0-12	100x200	4.0-12	100	2.3-6.0
300x300	5.0-14	150x200	4.0-12	102	2.3-6.0
350x350	6.0-14	150x250	4.0-14	108	2.3-6.0
400x400	6.0-18	150x300	5.0-16	110	2.3-6.0
500x500	8.0-20	200x300	5.0-16	114	2.3-6.0
600x600	8.0-20	200x400	6.0-16	133	3.0-6.0
		300x500	6.0-20	140	3.0-8.0
		400x600	8.0-20	152	3.0-8.0
				165	3.0-8.0
				190	3.5-12
				200	4.0-12
				219	4.0-12
				273	4.0-14
				325	5.0-16
				377	5.0-16
				426	6.0-20

OUR ADVANTAGE:
* Direct manufacture/factory to reduce intermediate links
* Competitive price with high quality
* Small and flexible order quantity requirement according to customer's situation
* Provide customize service, can make processing according to drawings
* Rich experience in exporting steel products and good credit and pucka sincere after-sales service



CONTAINER SHIPMENTS:

Company introduction:
QINGDAO WANRUNDA IMP AND EXP CO.,LTD is a special and experienced steel supplier and exporter, can manufacture according to ASTM,JIS,DIN,API standard. We have exported to Australia, Doha, Sri Lanka, India, Turkey, Kyrgyzstan, Russia, Canada, Poland, Middle east countries and African countries, We got very good reputation from all our cooperative clients;
We mainly manufacture and sale various kinds of steel pipe, include Welded pipe/Galvanized steel pipe/Pre-Galvanized steel pipe/Square and Rectangular hollow section/Furniture pipe/Warmhouse booth pipe/stainless steel pipe etc ; Steel coil include Pre-Galvanized steel coil and stainless steel coil; Steel profile include Angle steel/Channel steel/Steel checkered plate/Square steel/C-channel steel etc. We also deal with assorted products, such as Flange/Steel hinge/Plastic pipe plug and cap etc