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.

Categories: Carbon Steel tube, Steel Pipe

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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
Outer Diameter	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	C	Mn	P	S	Si	Cr	Cu	Mo	Ni	V
GradeA	0.25	0.27-0.93	0.035	0.035	0.1	0.4	0.4	0.15	0.4	0.08
GradeB	0.3	0.29-1.06	0.035	0.035	0.1	0.4	0.4	0.15	0.4	0.08
GradeC	0.35	0.29-1.06	0.035	0.035	0.1	0.4	0.4	0.15	0.4	0.08

Mechanical Properties

A333	GradeA	GradeB	GradeC
Tensile Strength min.psi	48,000	60,000	70,000
Yield Strength min.psi	30,000	35,000	40,000

Packing and delivery

The company mainly deals in seamless steel pipes, welded steel pipes, galvanized steel coils, round steel, steel plates, color-coated plates, stainless steel plates, aluminum coils, angle steels, H-shaped steels, special-shaped steel bars, etc. We provide one-stop service from raw materials to finished products, with complete product specifications. We have 30 years of production experience and after years of development, we have a strong production capacity with a monthly output of 50,000 tons.

We are one-stop supplier from raw materials to finished products, our products are available in a variety of specifications and with a history of 30 years production experience, after years of development, We have a strong production capacity, with a monthly output of 50,000 tons, ranking among the top five in the industry.

Scope of Application

ASTM A333 seamless pressure pipe (also known as ASME SA333 pipe) is commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers and ships. These pipes must transport fluids and gases with high temperature and pressure levels.

Customer visits and visits, as well as positive feedback on the received goods

Q1: What are the certifications for your products?

A We have ISO 9001, MTC, and third-party inspections available such as SGS, BV, etc.

Q2: Do you provide custom-made products service?

A Yes. If you have your own design, we can produce according to your specification and drawing.

Q3: What are your terms of payment?

A For Payment ≤ 1,000 USD: 100% in advance. For Payment ≥ 1,000 USD: 30% T/T in advance, balance before shipment or based on BL copy; LC at sight is acceptable.

Q4: What about product price information?

A Prices vary according to the periodic changes of raw material costs and market conditions.

Q5: What ports of shipment are available?

A Normally we ship from Shanghai, Tianjin, Qingdao, Ningbo. Other ports can be specified according to your needs.

Q6: It's my first time to import steel products — can you help me?

A Sure. We have a reliable forwarding/agent team to arrange shipment and guide the whole process together with you.

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Our products are well established in the domestic market and exported to more than 30 countries and regions worldwide, including the Middle East, South America, Southeast Asia, and Africa. With reliable quality and performance, they are widely utilized in construction, municipal infrastructure, metallurgy, and petrochemical sectors.