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  • S235JR/S355JR Seamless steel pipe
  • S235JR/S355JR Seamless steel pipe
  • S235JR/S355JR Seamless steel pipe

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S235JR/S355JR Seamless steel pipe
S235JR is a carbon structural steel, the carbon content is about 0.05% ~ 0.70%, individual can be as high as 0.90%. Can be divided into ordinary carbon structural steel and high-quality carbon structural steel two categories. Many uses, the amount is large, mainly used in railway, bridge, all kinds of construction projects, the manufacture of various metal components under static load and not important mechanical parts and general welding parts that do not need heat treatment.
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All steel products are available worldwide

Product details

Hot-rolled steel pipes are delivered in hot-rolled or heat-treated condition;

Hot rolled seamless steel pipe production process:

Tube blank → heating → perforation → three-high skew rolling and continuous rolling → Stripping → sizing → Cooling → straightening → hydraulic test → marking → lever effect seamless steel pipe in storage will be detected.

Cold-drawn seamless steel pipe production process:

Tube blank → heating → perforating → heading → annealing → pickling → oiling → multi-pass cold drawing → Tube blank → Heat treatment → straightening → hydraulic test → marking → storage. The wall thickness of cold-drawn seamless steel pipe is better than that of hot-rolled seamless steel pipe, and the surface roughness is also some.


Product information:

Product Name

S235JR/S355JR Seamless steel pipe

Standard

EN/DIN/JIS/ASTM/BS/ASME/AISI etc.

More material type

10#  20#  45#  Q235  20G  20MnG  25MnG  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.


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Chemical Composition(%)

Grade

C

Mn

P

Si

S

N

S235JRH

0.17

0.040

1.40

-

0.040

0.009

S355J0H

0.22

0.035

1.60

0.55

0.035

0.009

S275J2H

0.20

0.030

1.50

-

0.030

-

S355J2H

0.22

0.030

1.60

0.55

0.030

-

S275J0H

0.20

0.035

1.50

-

0.035

0.009

S355K2H

0.22

0.030

1.60

0.55

0.030

-

Mechanical Properties

EN10210

Yield Strength

Elongation(%)

Tensile Strength

Test Temperature(Celsius)

-20

0

20

S355J2H

355

22

510-680

27

-

-

S275J0H

275

23

410-560

-

27

-

S275J2H

275

23

410-560

27

-

-

S235JRH

235

26

360-510

-

-

27

S355J0H

355

22

510-680

-

27

-

S355K2H

355

22

510-680

40

-

-

Material use

Mainly used in buildings, Bridges, ships, vehicle structural parts, manufacturing a variety of tools, cutting tools, molds and measuring tools.

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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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