Cheap PriceList for High Pressure Cold Rolled Q355B 16Mn C20 ASTM A36 Seamless Carbon Steel Pipe

Short Description:

Q355 steel pipe is a Chinese low alloy high strength structural steel pipe, which replaced Q345, the material density is 7.85 g/cm3. According to GB/T 1591 -2018, Q355 has 3 quality levels: Q355B, Q355C and Q355D.

Q355 steel pipe is a low alloy, high-strength steel that is used in welded structures supporting stress and heavy loads. The Q references the yield point, while the number 355 indicates its yield strength.

Characteristics of Q355 Steel Pipe

Q355 steel pipe is a structural steel with a yield strength of 345 MPa and tensile strength of 450 MPa. It has terrific processing performance and compressive strength, which can be used to manufacture high-pressure gas pressure vessels containing less than 500 liters. Q355 also has a protective layer of rust resistance.

Uses of Q355 Steel Pipe

Q355 steel pipe has excellent mechanical properties, great weldability, and ample corrosion resistance. It can be utilized to manufacture and produce petroleum storage tanks, high-pressure vessels, boilers, ships, power stations, and many other high-load structural parts.

Size: 34mm-610mm.

W.T.: 3.5mm-50 mm.

Shape: Round.

Production type: Hot rolled or Hot expended .

Length: Single random length/ Double random length or as customer’s actual request max length is 12m


Product Detail

Product Tags

Our firm aims to operating faithfully, serving to all of our shoppers , and working in new technology and new machine consistently for Cheap PriceList for High Pressure Cold Rolled Q355B 16Mn C20 ASTM A36 Seamless Carbon Steel Pipe, We are looking forward to establishing cooperative relationships with you. Please contact us for more information.
Our firm aims to operating faithfully, serving to all of our shoppers , and working in new technology and new machine consistently for China Carbon Steel Pipe and Seamless Steel Pipe, With many years good service and development, we’ve a professional international trade sales team. Our products have exported to North America, Europe, Japan, Korea, Australia, New Zealand, Russia and other countries. Looking forward to build up a good and long term cooperation with you in coming future!

Steel Grade

Quality Grade

C % (≤)

Si % (≤)

Mn %(≤)

P %(≤)

S% (≤)

Cr% (≤)

Ni% (≤)

Cu %(≤)

N% (≤)

Q355

Q355B

0.24

0.55

1.6

0.035

0.035

0.3

0.3

0.4

0.012

 

Q355C

0.2

 

 

0.03

0.03

 

 

 

0.012

 

Q355D

0.2

 

 

0.025

0.025

 

 

 

Yield Strength (≥N/mm2), Thickness or Dia. (d) in mm

Steel Grade

Quality Level

d≤16

16< d ≤40

40 < d ≤63

63 < d ≤ 80

80< d ≤ 100

100< d≤ 150

150 < d≤ 200

200 < d ≤ 250

250 < d ≤ 400

Q355

Q355B

355

345

335

325

315

295

285

275

Q355C

Q355D

265

 

Tensile Strength (N/mm2), Dia. (d) mm

Steel Grade

Quality Level

d≤100

100 < d ≤ 150

150 < d ≤ 250

250 < d ≤ 400

Q355

Q355B

470 – 630

450 – 600

450 – 600

Q355C

Q355D

450 – 600

 

Dia. (d) mm; Elongation (%)

Sample direction

d≤40

40 < d ≤ 63

63 < d ≤ 100

100 < d ≤ 150

150 < d≤ 200

250 < d ≤ 400

Horizontal

20

19

18

18

17

17

Vertical

22

21

20

18

17

17

Quality

Temperature

Longitudinal Impact Energy (J), ≥

Transverse Impact Energy (J), ≥

Q355B

20 ℃

34

27

Q355C

0 ℃

34

27

Q355D

-20 ℃

34 (for thickness ≥250mm)

27 (for thickness ≥250mm)

China

ISO

European Union

Standard

Grade

Standard

Grade

Standard

Grade (Material Number)

GB/T 1591 -2018

Q355B

ISO 630-2

S355B

EN 10025-2

S355, S355JR (1.0045)

Q355C

S355C

S355J0 (1.0553)

Q355D

S355D

S355J2 (1.0577)

Straightening

Post annealing, the goods are passed through a seven roller straightening machine to achieve proper straightening of the tubes.

Eddy current

Post straightening, each tube is passed through eddy current machine to detect for surface cracks and other defects . Only the tubes that pass eddy current are fit for delivery to customers.

Finishing

Each tube is either oiled with corrosion resistant oil or varnished for surface protection and corrosion resistant as per customers requirement, each tube end is covered by plastic end caps to avoid damage in transit, the marking and specs are put and the goods are ready for dispatch.

Q355 Hot Rolled Carbon steel seamless pipes are extensively applied in the nuclear device, gas conveyance, petrochemical, shipbuilding and boiler industries, with characteristics of high corrosion resistance combined with suitable mechanical properties.

- Nuclear device
- Gas conveyance
- Petrochemical industries
- Shipbuilding and boiler industries

Our firm aims to operating faithfully, serving to all of our shoppers , and working in new technology and new machine consistently for Cheap PriceList for High Pressure Cold Rolled Q355b 16mn C20 ASTM A36 Seamless Carbon Steel Pipe, We are looking forward to establishing cooperative relationships with you. Please contact us for more information.
Cheap PriceList for China Carbon Steel Pipe and Seamless Steel Pipe, With many years good service and development, we’ve a professional international trade sales team. Our products have exported to North America, Europe, Japan, Korea, Australia, New Zealand, Russia and other countries. Looking forward to build up a good and long term cooperation with you in coming future!


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