China Supplier Gas and Oil Use Mild Carbon Steel Seamless Pipes

China Supplier Gas and Oil Use Mild Carbon Steel Seamless Pipes

1. Information: 2. ASTM A691: (1) The welds of A691 pipe shall be made either manually or automatically by an electric process involving the deposition of filler metal. (2) The size range covers pipe 16 in.[400mm] in outside diameter and wall thickness ≤3in. [75mm]. Pipe having other dimensions...

Product Introduction

The Gas Cylinder Tube, seamless 316 stainless steel tubing, Heavy Wall Seamless Steel Tube has excellent quality and reasonable price, since it was put into the market, it has been favored by users and caused great social repercussions. We adhere to high standards, strictly control quality, and permeate quality consciousness into the heart of every employee. Pursue development by being practical and establish famous brand by innovation is our eternal business principle, and we have always diligently practiced it. We will inherit and carry forward the fine tradition and entrepreneurial spirit, and wholeheartedly provide first-class engineering and technical services for customers at home and abroad. We always insist on giving full play to the cost performance advantages of products made in China to serve customers.

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A691 Mild Steel Seamless Pipe

Material

The A691 Mild Steel Seamless Pipe is made from high-quality mild steel. Mild steel is a low carbon steel that contains a small amount of carbon (up to 0.25%). It is known for its excellent formability, weldability, and versatility.


Specification

The A691 Mild Steel Seamless Pipe is manufactured according to the following specifications:

Specification

Value

Size Range

1/2" to 24"

Wall Thickness Range

SCH 10 to SCH XXS

Length

Random or Fixed Length

End Connections

Plain End, Beveled End, Threaded

Standards

ASTM A691, ASME SA691


Chemical Composition

The chemical composition of the A691 Mild Steel Seamless Pipe is as follows:

Element

Composition (%)

Carbon (C)

0.20 max

Manganese (Mn)

0.90-1.40

Phosphorus (P)

0.025 max

Sulfur (S)

0.025 max

Silicon (Si)

0.15-0.50

Chromium (Cr)

0.50-0.80

Molybdenum (Mo)

0.45-0.65


Mechanical Properties

The A691 Mild Steel Seamless Pipe exhibits the following mechanical properties:

Property

Value

Tensile Strength

60,000-85,000 psi

Yield Strength

35,000-60,000 psi

Elongation

20% min

Hardness

80 HRB max


Physical Properties

The physical properties of the A691 Mild Steel Seamless Pipe are as follows:

Property

Value

Density

7.85 g/cm³

Melting Point

1420-1460°C

Thermal Conductivity

50.2 W/m·K

Electrical Resistivity

0.0000159 ohm·m


Process Performance

The A691 Mild Steel Seamless Pipe is manufactured using the seamless process. This process involves heating a solid billet of mild steel and then piercing it to form a hollow tube. The seamless process ensures a uniform and defect-free pipe with excellent dimensional accuracy.


Application

The A691 Mild Steel Seamless Pipe is widely used in various industries for different applications. Some common applications include:

  • · Oil and gas industry

  • · Petrochemical industry

  • · Power plants

  • · Construction

  • · Water supply systems

  • · Structural engineering


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These principles today more than ever form the basis of our success as an internationally active mid-size company for China Supplier Gas and Oil Use Mild Carbon Steel Seamless Pipes. Our company has rich unique experience in brand image building and promotion. Integrity not only requires us to cherish our commitment, but also requires us to have strong execution power.

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