The
main components of A333 seamless steel pipe include iron, carbon, chromium,
nickel, manganese and other elements. Chromium has excellent corrosion resistance, while the addition
of nickel further enhances the corrosion resistance and toughness of the
material. A333
seamless steel pipe has high strength and hardness, as well as good
plasticity and toughness. These excellent mechanical properties make A333
seamless steel pipe an ideal choice in many high-strength,
high-corrosion-resistant application scenarios. A333 seamless steel pipe is
commonly used to transport oil and natural gas with high temperature and high
pressure owing to the excellent sealing and corrosion resistance.
Product Parameters
Product Name
A333 Seamless & Welded Steel Pipe
Standard
EN/DIN/JIS/ASTM/BS/ASME/AISI etc.
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
Other
Services
Machining(cnc), Centerless Grinding(cg), Heat
Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting,
Bending, Small Machining, etc.
Chemical Composition
A333
Grade1
Grade3
Grade4
Grade6
Grade7
Grade8
Grade9
Grade10
Grade11
C
0.3
0.19
0.12
0.3
0.19
0.13
0.2
0.2
0.1
Mn
0.40-1.06
0.31-0.64
0.50-1.05
0.29-1.06
0.9
0.9
0.40-1.06
1.15-1.50
0.6
P
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.035
0.025
S
0.025
0.025
0.025
0.025
0.025
0.025
0.025
0.015
0.025
Si
-
0.18-0.37
0.08-0.37
0.10 min
0.13-0.32
0.13-0.32
-
0.10-0.35
0.35
Ni
-
3.18-3.82
0.47-0.98
0.4
2.03-2.57
8.40-9.60
1.60-2.24
0.25
35.0-37.0
Cr
-
-
0.44-1.01
0.3
-
-
-
0.15
0.5
Cu
-
-
0.40-0.75
0.4
-
-
0.75-1.25
0.15
-
Al
-
-
0.04-0.30
-
-
-
-
0.06
-
Mechanical Properties
A333
Tensile Strength min.
Yield Strength min.
Elongation % min.
Grade
psi
MPa
psi
MPa
Vertical
Transverse
Grade1
55 000
380
30 000
205
35
25
Grade3
65 000
450
35 000
240
30
20
Grade4
60 000
415
35 000
240
30
16.5
Grade6
60 000
415
35 000
240
30
16.5
Grade7
65 000
450
35 000
240
30
22
Grade8
100 000
690
75 000
515
22
-
Grade9
63 000
435
46 000
315
28
-
Grade10
80 000
550
65 000
450
22
-
Grade11
65 000
450
35 000
240
18
-
Scope of
Application
Seamless
and welded steel pipes for low temperature service and other applications
with the required notch toughness.