Home > Products > Seamless steel pipe/tubes > Seamless pipes by applications >

Structural seamless pipes

Structural seamless pipes Standard:

Application:
for the manufacture of pipelines, containers, equipment, fittings and mechanical structures .

Steel grad:
10、20、35、45、Q345、15CrMo、12Cr1MoV、A53A、A53B、SA53A、SA53B

Tolerance:
Steel type Pipe Out diameter
(D)
Pipe wall thickness
(S)
Cold Drawing Pipe O.D.
(mm)
Tolerance
(mm)
W.T.
(mm)
Tolerance
(mm)
>30~50 ±0.3 ≤30 ±10%
>50~219 ±0.8%
Hot Rolled Pipe >219 ±1.0% >20 ±10%
Mechanical properties:
Standard Grade Tensile Strength
(MPa)
Yield strength
(MPa)
elongation
(%)
GB/T8162 10 ≥335 ≥205 ≥24
20 ≥390 ≥245 ≥20
35 ≥510 ≥305 ≥17
45 ≥590 ≥335 ≥14
Q345 ≥490 ≥325 ≥21
15CrMo ≥440 ≥295 ≥22
12Cr1MoV ≥490 ≥245 ≥22
ASTM A53
ASME SA53
A ≥330 ≥205 查看ASTM A53的表

查看ASME SA53的表
B ≥415 ≥240
Chemical composition:
Standard Grade Composition(%)
C Si Mn P S Cu Ni Mo Cr V
GB/T8162 10 0.07~0.14 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035 ≤0.25 ≤0.25 / ≤0.15 /
20 0.17~0.24 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035 ≤0.25 ≤0.25 / ≤0.25 /
35 0.32~0.40 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 ≤0.25 ≤0.25 / ≤0.25 /
45 0.42~0.50 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 ≤0.25 ≤0.25 / ≤0.25 /
Q345 0.12~0.20 0.20~0.55 1.20~1.60 ≤0.035 ≤0.035 ≤0.25 ≤0.25 / ≤0.25 /
15CrMo 0.12~0.18 0.17~0.37 0.40~0.70 ≤0.035 ≤0.035 ≤0.25 ≤0.30 0.40~0.55 0.80~1.10 /
12Cr1MoV 0.08~0.15 0.17~0.37 0.40~0.70 ≤0.035 ≤0.035 ≤0.25 ≤0.30 0.25~0.35 0.90~1.20 0.15~0.30
ASTMA53
ASMESA53
A ≤0.25 / ≤0.95 ≤0.05 ≤0.06 ≤0.40 ≤0.40 ≤0.15 ≤0.40 ≤0.08
B ≤0.30 / ≤1.20 ≤0.05 ≤0.06 ≤0.40 ≤0.40 ≤0.15 ≤0.40 ≤0.08



About Sunny Steel

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

Link exchange