Manufacturer Of Underground Gas Line - Cold Formed Pipes, EN10219 S235JRH, S235J0H, S355JRH, S355J0H – Spiral

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Our corporation insists all along the quality policy of product top quality is base of organization survival; purchaser pleasure will be the staring point and ending of an company; persistent improvement is eternal pursuit of staff plus the consistent purpose of reputation very first, purchaser first for Spiral Pipe Welding Length Calculation , Ss 304 Erw Pipe , Repairing Sewer Line , Our products are strictly inspected before exporting , So we gain a good reputation all over the world. We looking forward to cooperation with you in the future.

Manufacturer Of Underground Gas Line - Cold Formed Pipes, EN10219 S235JRH, S235J0H, S355JRH, S355J0H – Spiral Detail:

Mechanical Property

steel grade	minimum yield strength Mpa		Tensile strength		Minimum elongation %	Minimum impact energy J
steel grade	Specified thickness mm		Specified thickness mm		Specified thickness mm	at test temperature of
	＜16	＞16≤40	＜3	≥3≤40	≤40	-20℃	0℃	20℃
S235JRH	235	225	360-510	360-510	24	-	-	27
S275J0H	275	265	430-580	410-560	20	-	27	-
S275J2H	275	265	430-580	410-560	20	27	-	-
S355J0H	365	345	510-680	470-630	20	-	27	-
S355J2H						27	-	-
S355K2H						40	-	-

Chemical Composition

Steel grade		Type of de-oxidation a	% by mass, maximum
Steel name	Steel number	C	C	Si	Mn	P	S	Nb
S235JRH	1.0039	FF	0,17	—	1,40	0,040	0,040	0.009
S275J0H	1.0149	FF	0,20	—	1,50	0,035	0,035	0,009
S275J2H	1.0138	FF	0,20	—	1,50	0,030	0,030	—
S355J0H	1.0547	FF	0,22	0,55	1,60	0,035	0,035	0,009
S355J2H	1.0576	FF	0,22	0,55	1,60	0,030	0,030	—
S355K2H	1.0512	FF	0,22	0,55	1,60	0,030	0,030	—
a. The deoxidation method is designated as follows: FF: Fully killed steel containing nitrogen binding elements in amounts sufficient to bind available nitrogen (e.g. min. 0,020 % total Al or 0,015 % soluble Al). b. The maximum value for nitrogen does not apply if the chemical composition shows a minimum total Al content of 0,020 % with a minimum Al/N ratio of 2:1, or if sufficient other N-binding elements are present. The N-binding elements shall be recorded in the Inspection Document.

Hydrostatic Test

Each length of pipe shall be tested by the manufacturer to a hydrostatic pressure that will produce in the pipe wall a stress of not less than 60% of the specified minimum yield strength at room temperature. The pressure shall be determined by the following equation:
P=2St/D

Permissible Variations In Weights and Dimensions

Each length of pipe shall be weighed separately and its weight shall not vary more than 10% over or 5.5% under its theoretical weight, calculated using its length and its weight per unit length
The outside diameter shall not vary more than ±1% from the specified nominal outside diameter
Wall thickness at any point shall not more than 12.5% under the specified wall thickness

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Our focus on should be to consolidate and enhance the quality and repair of present products, in the meantime constantly establish new products to meet unique customers' requires for Manufacturer Of Underground Gas Line - Cold Formed Pipes, EN10219 S235JRH, S235J0H, S355JRH, S355J0H – Spiral , The product will supply to all over the world, such as: Sudan, Ghana, Washington, Profession, Devoting are always fundamental to our mission. We have always been in line with serving customers, creating value management objectives and adhering to the sincerity, dedication, persistent management idea.

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Although we are a small company, we are also respected. Reliable quality, sincere service and good credit, we are honored to be able to work with you!