GB/T5312 Seamless Pipe For Ship

  • Standard:GB/T5312
  • Unit Price Payment:TT or LC at sight
  • Transportation:China Main Port
  • Productivity:20000 Metric Ton Per Month
  • Type: GB/T5312 Seamless Pipe For Ship
  • Size: 1-38inch(diameter)
  • Material: 320,360,410,460,490
  • Thickness:2mm-60mm
  • Standard:GB/T5312
  • Package: Painting, caps, bevel, bundles or as per your requirements
  • Application: GB/T5312 Seamless Pipe for manufacturing marine boilers and ovemeaters as we as pressure pipes opf grade I and Ⅱ.
  • Delivery time: According to the order quantity

Types of steel tubes

Outer diameters

wall thickness

Cold-rolled tubes

Rube size(mm)

tolerances(mm)

Tube sizes (mm)

Tolerances(mm)

>30~50

±0.3

≤30

±10%

>50~219

±0.8%

Hot-rolled tubes

>219

±1.0%

>20

±10%

Mechanocal Properties Of GB/T5312 Seamless Pipe For Ship

Standard code

Models of steel tubes

Tensile strength(MPa)

Yield strength(MPa)

Elongation(%)

GB/T5312

320

320~410

≥195

≥25

360

360~480

≥215

≥24

410

410~530

≥235

≥22

460

460~580

≥265

≥21

490

490~610

≥285

≥21

Chemical Compisition Of GB/T5312 Seamless Pipe For Ship

Standard code

Models of steel tubes

Chemical compisition(%)

C

Si

Mn

P

S

GB/T5312

320

≤0.16

≤0.35

0.40~0.70

≤0.035

≤0.035

360

≤0.17

≤0.35

0.40~0.80

≤0.035

≤0.035

410

≤0.21

≤0.35

0.40~1.20

≤0.035

≤0.035

460

≤0.22

≤0.35

0.80~1.40

≤0.035

≤0.030

490

≤0.23

≤0.35

0.80~1.50

≤0.035

≤0.030

 


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