Name: EN S235/S355 Large-caliber Straight seam welded pipe
SKU: 0

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EN S235/S355 Large-caliber Straight seam welded pipe

S235JR is a European standard non-alloy structural steel, that is, carbon structural steel with low carbon content, which is used for welding, bolted and riveted structures.
S355NL is a normalizing steel (fine grain steel) in EN10025-3:2004 standard. Its yield strength and tensile strength correspond to the Q345 low alloy steel in China.

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Product details

S235JR, S275JR, S235J0, S275J0, these materials are European standard carbon structural steel, the delivery status is hot rolled delivery, can be produced in accordance with the requirements of the demander TMCP delivery status steel plate, normalized or normalized rolled delivery status steel plate, and tempered delivery status steel plate.

S235JR, S275JR, S235J0, S275J0, steel steelmaking methods are free to choose. Methods of steelmaking: converter steelmaking, electric steelmaking and off-furnace refining.

S235JR, S275JR, S235J0, S275J0 steel can be divided into boiling steel and non-boiling steel, that is, killed steel.

S235JR, S275JR, S235J0, S275J0 steel JR steel is high quality steel, J0 steel is ordinary steel (according to the EN10025 standard of JR quality E185, E295, E335, E360 and S275, S235, S355 are ordinary steel, The delivery quality grade is J0, J2G3, J2G4, K2G3, K2G4, J2, K2 are high quality steel).

S355 Quality grade

EN10025-2 quality grade is divided into S355JR, S355J0, S355J2, S355K2, S355J2, S355K2, S355JR, S355J0.

EN10025-23 Quality class is classified as S355N S355NL.

Specification and size

Product information：

Product Name	EN S235/S355 Large-caliber Straight seam welded pipe
Standard	EN/DIN/JIS/ASTM/BS/ASME/AISI etc.
More material type	10# 20# 45# Q235 20G 20MnG 25MnGa36 a36 A53 A106 A333 A335 A336 A179 S235 S355 SA179 SA192 SA210 SA179 DIN17175 DIN2391 DIN16229 Q235 Q195 Q345 16Mn 20Cr 40Cr 12CrMo 15CrMo 20CrMo 30-35CrMo 42CrMo STPY41 STPG38 STB30 STB33 STB35 STPT42 St35 St37 St44 St45.8 15Mo3 13CrMo44 10CrMo910
Outer Diameter	Seamless: 1/4"-36"	Welding: 21.3mm-3620mm
	Round Tube: 1/2"-10"	Square Tube/Rectangular Tube: 15x15mm-400x600mm
Wall Thickness	Seamless: 1.25mm-50mm	Welding: 1.65mm-65mm
Length	3-12 meters, Support customization
Surface Process	Bright, Polished, Black
Certificate	CE, tisi, KS, JIS, GS, ISO9001
Delivery Time	within 7 days
Other Services	Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.

Chemical composition (%)

EN10027-1

EN10027-2

Reduction method
/b

Thickness/mm
C（%）

Other ingredients

≤16

＞16
≤40

＞40

S235JR

1.0038

≤0.17

≤0.20

－

≤1.40

≤0.035

≤0.012

≤0.55

－

S235J0

1.0114

≤0.17

－

≤1.40

≤0.030

≤0.012

≤0.55

－

S235J2

1.0117

≤0.17

－

≤1.40

≤0.025

－

≤0.55

－

S275JR

1.0044

≤0.21

≤0.22

－

≤1.50

≤0.035

≤0.012

≤0.55

－

S275J0

1.0143

≤0.18

－

≤1.50

≤0.030

≤0.012

≤0.55

－

S275J2

1.0145

≤0.18

－

≤1.50

≤0.025

－

≤0.55

－

S355JR

1.0045

≤0.24

≤0.55

≤1.60

≤0.035

≤0.012

≤0.55

－

S355J0

1.0553

≤0.20

≤0.22

≤0.55

≤1.60

≤0.030

≤0.012

≤0.55

－

S355J2

1.0577

≤0.20

≤0.22

≤0.55

≤1.60

≤0.025

－

≤0.55

－

S355K2

1.0596

≤0.20

≤0.22

≤0.55

≤1.60

≤0.025

－

≤0.55

－

S450J0

1.0590

≤0.20

≤0.22

≤0.55

≤1.70

≤0.030

≤0.025

≤0.55

－

Surface classification

Common grade Surface (FA)

The surface of the pickling surface is allowed to have a depth (or height) not more than half of the thickness tolerance of the steel plate pitting, concave, scratches and other minor, local defects, but should ensure that the minimum allowable thickness of the steel plate and steel strip.

Higher Surface (FB)

The pickling surface is allowed to have local defects that do not affect the formability, such as slight scratches, slight indentation, slight pitting, slight roll marks and color difference.

Scope of Application

ASTM A106 seamless pressure pipe (also known as ASME SA106 pipe) is commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers and ships. These pipes must transport fluids and gases with high temperature and pressure levels.

WORKSHOP EQUIPMENT

The company mainly produces hot rolled steel plate, cold rolled steel plate, carbon steel coil, carbon steel pipe, API pipe, structural steel, steel bar and other products. The company has obtained ISO9001 quality system certification and European CE certification, and provides MTC quality certification according to EN10204.3.1

Companies adhering to the "integrity, quality, win-win" spirit of enterprise, in the years of pioneering and enterprising, never forget the original aspiration, accumulated strength, with wisdom and sweat to lead the development of iron and steel industry.

The annual production capacity of cold rolled steel plate production line is 600,000 tons, and the production specification is 0.12-1.2mm*750-1250mm. The production line adopts advanced full hydraulic on the road, flexible and stable control, combined with thickness gauge to achieve automatic control of AGC plate thickness, so as to ensure product quality.

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