A618 High-Strength Structural Tubing
A618 High-Strength Structural Tubing
A618 High-Strength Structural Tubing

A618 High-Strength Structural Tubing

Name: China Customized A618 High-Strength Structural Tubing Manufacturers Suppliers - Quotation - GNEE Pipe
Brand: GNEE
SKU: 239119581

Standard: ASTM A618/ASME SA618
Grade: Ia, Ib, II, III
Shapes: Round, Square, Rectangular
Type: Seamless and Welded

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Product Introduction

A618 Pipe Description

A618 steel pipe is a hot-formed welded and seamless high-strength low-alloy structural pipe used for welding, riveting, or bolting bridges and buildings, as well as for general structural purposes. It is available in square, rectangular, round, or special shapes.

As a professional manufacturer of A618 steel pipes, GNEE Group can supply you with A618 low-alloy welded pipes, A618 high-strength welded pipes, A618 low-alloy seamless pipes, A618 high-strength welded pipes, A618 rectangular structural pipes, and more. As a manufacturer, we can offer more competitive prices and more professional services than other suppliers. Contact us for more information.

A618 Low-Alloy Structural Tubing Specification

Wall Thickness	1.25mm-50mm
O.D.	1/4"-36"
Length	3m-12m
Grade	Ia, Ib, II, III
Shapes	Round, Square, Rectangular
Type	Seamless and Welded

A618 Welded Structural Tube Chemical Requirements and Tensile Requirements

ASTM A618 Structural Tubing Chemical Requirements
Composition, %	Grade Ia		Grade Ib		Grade II		Grade III
Composition, %	Heat	Product	Heat	Product	Heat	Product	Heat	Product
Carbon, max	0.15	0.18	0.20	. . .	0.22	0.26	0.23A	0.27A
Manganese	1.00 max	1.04 max	1.35 max	1.40 max	0.85–1.25	1.30 max	1.35 max^A	1.40 max^A
Phosphorus, max	0.15	0.16	0.025	0.035	0.025	0.035	0.025	0.035
Sulfur, max	0.025	0.045	0.025	0.035	0.025	0.035	0.025	0.035
Silicon, max	. . .	. . .	. . .	. . .	0.30	0.33	0.30	0.35
Copper, min	0.20	0.18	0.20B	0.18B	0.20	0.18	. . .	. . .
Vanadium, min	. . .	. . .	. . .	. . .	0.02	0.01	0.02C	0.01
^AFor each reduction of 0.01 % C below the specified carbon maximum, an increase of 0.05 % manganese above the specified maximum will be permitted up to 1.45 % for the heat analysis and up to 1.50 % for the product analysis. ^BIf chromium and silicon contents are each 0.50 % min, then the copper minimums do not apply. ^C For Grade III, columbium may be used in conformance with the following limits: 0.005 %, min (heat) and 0.004 %, min (product).

ASTM A618 Low Alloy Structural Pipe Tensile Requirements
	Grades la, lb, and ll				Grade lll
	Walls 3⁄4 in. [19.0 mm] and Under		Walls over 3⁄4 to 11⁄2 in. [19.0 to 38.0mm], incl
Tensile strength, min, ksi [MPa]A Yield strength, min, ksi [MPa]A Elongation in 2 in. or 50 mm, min, % Elongation in 8 in. or 200 mm, min, %	70 50 22 19	[485] [345]	67 46 22 18	[460] [315]	65 50 20 18	[450] [345]
^A For Grade II, when the material is normalized, the minimum yield strength and minimum tensile strength required shall be reduced by 5 ksi [35 MPa]

A618 Hot-Formed Welded High-Strength Low-Alloy Structural Tubing

A618 welded pipe low alloy pipe

GNEE A618 Pipe for Sale

ASTM A618 High-Strength Low-Alloy Steel Tubing	ASTM A618 Grade 3 Steel Tubes
ASTM A618 Grade II Welded Pipes	ASTM A618 Grade III Welded Steel Tubes
ASTM A618 Grade 2 Seamless Steel Tubes	ASTM A618 Grade 1 Seamless Pipes

FAQ

Q: Do you accept customization of A618 welded pipes?

A: Yes, but customers are required to provide detailed information such as size, quantity, material, etc. of customized pipes.

Q: What should I do if the pipes I receive are defective?

A: We can raise samples for you before the order is shipped. If the pipe fittings you receive do not match the samples, we will refund you or you can choose to reissue the pipes.

Q: Are you a manufacturer or trader?

A: GNEE Group is a trading company with 16 years of experience in producing and supplying steel products. We have 20 steel pipe production lines and 5 pipe fitting production lines. Can provide you with customized services. You are welcome to visit our factory and company.

Q: Can you provide samples? Are there any fees?

A: We can provide you with pipe samples, but the logistics costs need to be paid by the customer.

Q: What is the delivery time of pipes?

A: Spot delivery time: 3-7 days after receiving advance payment.

Customized delivery time: 20-30 days after order confirmation.

Q: What is your minimum order quantity of A618 low alloy pipes?

A: For regular sized pipes, we have a large stock of tubes in stock with no MOQ required. For custom sizes, the MOQ is 30 tonnes.

Q: What is your payment term?

A: Our payment terms are L/L, T/C.

Q: What is your term of trade?

A: Our terms of trade are FOB, CIF, CFR, DDP,EXW.

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