Why us Our advantages. 1.Reasonable price with excellent quality
2.Abundant stock and prompt delivery
3.Rich exporting experience and sincere service
4.Reliable forwarder, 2-hour away from port.
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Product Description carbon steel material erw q235 scaffold round black pipe on sale
1. Outer diameter: 20mm-660mm 2. Wall thickness: 1.5mm-18mm 3. Materila: ASTM A106 gr.b 4. Standard: ASME B36.10, API 5L 5. Certificate: ISO 9001, SGS 6. Application: Scaffold

	GB/T3091	API 5L, ASTM A53	ISO65	BS1387, EN10219	DIN2440	JIS G3444
Equivalent	Q195	GR.A	√	S195	S195	—
	Q235	GR.B	—	S235	—	STK400
	Q345	GR.C	—	S355	—	STK490

	CHEMICAL COMPOSITION %					MECHANICAL PROPERTIES
	C( %)	Si( %) (Max)	Mn( %)	P( %) (Max)	S( %) (Max)	YS (Mpa) (Min)	TS (Mpa)	EL( %) (Min)
Q195	0.06-0.12	0.30	0.25-0.50	0.045	0.05	195	315-390	33
Q235	0.12-0.20	0.30	0.3-0.7	0.045	0.045	235	375-460	26
Q345	(Max)0.2	0.55	1.0-1.6	0.045	0.045	345	470-630	21

Detailed Images Material and standard of q235 csaffold black pipe. Q235 scaffold black pipe is made from carbon steel q235.
We can make carbon steel pipes as GB/T3091, GB/T6728, API 5L, ASTM A53, ASTM A500, ISO65, ASTM A252, ASTM A795, BS, EN 39, BS 1387, BS EN 10219, BS EN 10255, DIN2440, JIS G3444, JIS G3466
Pipe ends can be bevevled if you require.
Q235 scaffold pipe painted black. After sand blasting and rust cleaning, carbon steel q235 scaffold pipe can be painted black, red, varnish...
Plastic pipe ends caps are necessary to protect beveled ends of steel pipe.
Inspection on q235 erw steel pipe. Steel pipes will be inspected strictly before delivery.
Third-party test is also accepted if our customer require.
Packing & Delivery Seamless steel pipe can be packed with PP / PE / Bundles  and caps on both ends, or according to customer's requirement. Packed in bundles. We advise you to ship seamless steel pipes in bundles  if you only need a few sizes with almost same length. Transported in bulk. We advise you to ship seamless steel pipes in bulk if  you need many sizes with different length and in large  quantity. Certifications Best erw q235 scaffold black pipe conforms to ISO 9001. All steel pipes will be inspected strictly. We assure you that our steel pipe conforms to ISO 9001and SGS. More Pipes Welded steel pipe. We also manufacture welded steel pipe (ERW pipe , EFW pipe, LSAW pipe) 24"-96" generally.
Some small or big diameter welded steel pipes can be made as customer's requirement.
Spiral steel pipe. We also manufacture spiral steel pipe(SSAW pipe) 24"-96" generally.

Some small or big diameter spiral steel pipes can be made as customer's requirement.
Galvanized steel pipe. We also manufacture galvaznied steel pipe(seamless galvanized steel pipe or welded galvanized steel pipe) 1/2"-96" generally.

Some small or big diameter galvanized steel pipes can be made as customer's requirement.
Customer Photos Our Company Qinhuangdao Zhongyan Machinery Co, Ltd.  head office is located in Qinhuangdao, a new national sanitary civilized harbor industry city. And our factory was built in Yanshan city. It has grown over the years in the distribution trading hot rolled seamless steel pipes. Nowadays, besides stocking and trading on pipes, it has developed as an extensive industrial manufacturing and market corporation. It accomplished a leadership in the research and production of hot rolled and cold drawn seamless, ERW, EFW, SAW, SSAW tubes in China.

Depending on good quality and competitive price, Qinhuagndao Zhongyan has achieved good reputation in the specific market. Our market extends to European, American, Korea, India, Japan, and South American. Being the far-sighted and with a development vision of internationalization, Qinhuagndao Zhongyan will always stick to the idea of mutual benefits. We warmly welcome domestic and overseas friends to give counsel of development..