Home > Products> Alloy steel pipes/tubes

Alloy steel pipe & tube

The benefits of alloy steel pipe include its tensile strength, yield strength, fatigue resistance, toughness, and wear resistance.

ASTM A333/A333M Seamless and Welded Steel Pipe

ASTM A333 is the Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service.

ASTM A333 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their microstructure.
Download Abrasion resistant The ceramic-lined steel composite pipes, Bends and elobws specifications & size range
Seamless and Welded Steel Pipe for Low-Temperature Service.

Standards: ASTM A333/333M (ASME SA333/SA333M)

Size (mm):
Outer Dimensions: 19.05mm ~ 114.3mm
Wall Thickness:2.0mm ~ 14 mm
Length: max 16000mm

Application: Seamless and Welded Steel Pipe for Low-Temperature Service.
Steel grade: Grade 1, Grade 6 .

Packing: Bare packing/bundle packing/crate packing/wooden protection at the both sides of tubes and suitably protected for sea-worthly delivery or as requested.

Inspection and Test: Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test,No-destructive Test, Hydrostatic Test.

Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting. Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.
Mainly Grade of ASTM A333:
 Mechanical requiremnts of ASTM A333 alloy pipe
Grade Tensile Strength (MPa) Yield Point (MPa) Elongation (%)
Y X
Grade 1 ≥380 ≥205 ≥35 ≥25
Grade 3 ≥450 ≥240 ≥30 ≥20
Grade 4 ≥415 ≥240 ≥30 ≥16.5
Grade 6 ≥415 ≥240 ≥30 ≥16.5
Grade 7 ≥450 ≥240 ≥30 ≥22
Grade 8 ≥690 ≥515 ≥22
Grade 9 ≥435 ≥315 ≥28
Grade 10 ≥550 ≥450 ≥22
Grade 11 ≥450 ≥240 ≥18
 Chemical Composition (%) of ASTM A333 steel pipe
Grade C Si Mn P S Cr Ni Cu Al
Grade 1 ≤0.30 0.40-1.06 ≤0.025 ≤0.025
Grade 3 ≤0.19 0.18-0.37 0.31-0.64 ≤0.025 ≤0.025 3.18-3.82
Grade 4 ≤0.12 0.18-0.37 0.50-1.05 ≤0.025 ≤0.025 0.44-1.01 0.47-0.98 0.40-0.75 0.04-0.30
Grade 6 ≤0.30 ≥0.10 0.29-1.06 ≤0.025 ≤0.025
Grade 7 ≤0.19 0.13-0.32 ≤0.90 ≤0.025 ≤0.025 2.03-2.57
Grade 8 ≤0.13 0.13-0.32 ≤0.90 ≤0.025 ≤0.025 8.40-9.60
Grade 9 ≤0.20 0.40-1.06 ≤0.025 ≤0.025 1.60-2.24 0.75-1.25
Grade 10 ≤0.20 0.10-0.35 1.15-1.50 ≤0.03 ≤0.015 ≤0.15 ≤0.25 ≤0.015 ≤0.06
Grade 11 ≤0.10 ≤0.35 ≤0.6 ≤0.025 ≤0.025 ≤0.50 35.0-37.0
Strike temperature condition:
Crade The lowest temperature for strike test
ASTM A333 Grade 1 -50 -45
ASTM A333 Grade 3 -150 -100
ASTM A333 Grade 4 -150 -100
ASTM A333 Grade 6 -50 -45
ASTM A333 Grade 7 -100 -75
ASTM A333 Grade 8 -320 -195
ASTM A333 Grade 9 -100 -75
ASTM A333 Grade 10 -75 -60

 


Delivery Condition: Normalized and Tempered

ASTM A213 T11 Seamless alloy pipes
+ ASTM A335 alloy pipe
ASMT A333 Grade 6 seamless pipes
+ ASTM A333 Alloy pipe

Alloy steel pipes
Recommended products
Pipe fittings
Pipe fittings are used to connect pipes.
Welded steel pipes Weld steel pipes
We produce an extensive selection of weld steel pipe
Welded steel pipes Anti corrosion pipe
Anti-corrosio pipe is processed through the preservation
Ceramic-Lined Pipes
from a single spool piece to complete piping systems.
Pipe flanges
Pipe flange are a method of connecting pipes, valves.
Pipe Fitting Accessories
We are passionate in Stub Ends, Bolt Sets, Fasteners
Sunny Steel Blog


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