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A333 Seamless & Welded Steel Pipe
ASTM A333 is the standard specification for seamless and welded carbon and alloy steel pipe for low temperature applications or other applications requiring notch toughness. This standard covers several grades of ferritic steel: Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10 and Grade 11.
Keywords:
A333 Seamless & Welded Steel Pipe
Category:
Carbon Steel Pipe
A333 Seamless & Welded Steel Pipe Description
ASTM A333 is the standard specification for seamless and welded carbon and alloy steel pipe for low temperature applications or other applications requiring notch toughness. This standard covers several grades of ferritic steel: Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10 and Grade 11.
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 | 0.30 | 0.19 | 0.12 | 0.30 | 0.19 | 0.13 | 0.20 | 0.20 | 0.10 |
Mn | 0.40-1.06 | 0.31-0.64 | 0.50-1.05 | 0.29-1.06 | 0.90 | 0.90 | 0.40-1.06 | 1.15-1.50 | 0.60 |
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 | 0.40 | 2.03-2.57 | 8.40-9.60 | 1.60-2.24 | 0.25 | 35.0-37.0 |
Cr | - | - | 0.44-1.01 | 0.30 | - | - | - | 0.15 | 0.50 |
Cu | - | - | 0.40-0.75 | 0.40 | - | - | 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.
Packing and delivery
We have been deeply involved in the fields of infrastructure construction and underground engineering for a long time. Our core products are grouting pipe series and advanced small conduits. We are an indispensable supplier of key materials in tunnels, subways, mines, water conservancy and various construction projects.

Packaging and shipping
FAQ
Q: How long is your delivery time?
A: Generally, if it is in stock, it will take 5-10 days, if it is not in stock, it will take 30 days.
Q: Can we send samples?
A: We can provide samples for the products you are interested in.
Q: How do we ensure quality?
A: We conduct pre-production sample testing, accept third-party or customer inspection, and conduct final inspection before shipment.
Q: How do you ensure long-term relationships?
A: We maintain high quality and competitive prices to benefit our customers. Every client is treated as a friend, we do business with sincerity and strive to build lasting relationships, regardless of origin.
Contact Us
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Address
Liaocheng, Shandong, China
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