What are the common models of seamless steel pipes?

TAGS: steel | seamless |

Model: 426 seamless steel pipe

Grade: A106/A53

Steel Type: Carbon Structural Steel

Specifications: outer diameter 15mm-720mm, wall thickness 2mm-20mm

Scope of application: general low pressure fluid delivery pipeline

Chemical composition: carbon (C)≤0.17%, manganese (Mn)≤1.40%

Mechanical properties: yield strength ≥ 415MPa, tensile strength ≥ 515MPa, elongation ≥ 22%

Welding method: arc welding, submerged arc welding, etc.

Application fields: Widely used in pipeline systems in petrochemical, chemical fertilizer, metallurgy, electric power and other industries.

Model: 416 seamless steel pipe

Grade: A106/A53

Steel Type: Carbon Structural Steel

Specifications: outer diameter 14mm-720mm, wall thickness 4mm-28mm

Scope of application: high-pressure gas pipelines, oil and gas pipelines, etc.

Chemical composition: carbon (C)≤0.17%, manganese (Mn)≤1.40%

Mechanical properties: yield strength ≥ 450MPa, tensile strength ≥ 690MPa, elongation ≥ 24%

Welding method: arc welding, submerged arc welding, etc.

Application fields: Widely used in pipeline systems in petroleum, natural gas, chemical and other industries.

Model: 436 seamless steel pipe

Grade: A53

Steel Type: Low Alloy Structural Steel

Specifications: outer diameter 15mm-720mm, wall thickness 2mm-20mm

Scope of application: general low pressure fluid delivery pipeline

Chemical composition: carbon (C)≤0.20%, manganese (Mn)≤1.40%, silicon (Si)≤0.35%, phosphorus (P)≤0.045%, sulfur (S)≤0.08%

Mechanical properties: yield strength ≥ 415MPa, tensile strength ≥ 515MPa, elongation ≥ 22%

Welding method: arc welding, submerged arc welding, etc.

Application fields: 436 seamless steel pipes are widely used in general low-pressure fluid delivery pipeline systems.

Model: 406 seamless steel pipe

Grade: A106/A53

Steel Type: Carbon Structural Steel

Specifications: outer diameter 15mm-720mm, wall thickness 2mm-20mm

Scope of application: general low pressure fluid delivery pipeline

Chemical composition: carbon (C)≤0.25%, manganese (Mn)≤1.40%, silicon (Si)≤0.35%, phosphorus (P)≤0.045%, sulfur (S)≤0.08%

Mechanical properties: yield strength ≥ 420MPa, tensile strength ≥ 510MPa, elongation ≥ 20%

Welding method: arc welding, submerged arc welding, etc.

Application fields: 406 seamless steel pipes can be used in pipeline systems for transporting liquid fuels such as crude oil and natural gas, and pipeline systems for transporting chemicals such as urea and sulfuric acid. Pipeline system for transporting iron ore, coke and other raw materials. , Pipeline system for transporting energy such as coal and fuel oil.

The comparison table of common model parameters of seamless steel pipes is as follows:

	Grade 426 pipe	Grade 416 pipe	Grade 436 pipe	Grade 406 pipe
Diameter (mm)	15mm to 720mm	14mm to 720mm	15mm to 720mm	15mm to 720mm
Wall thickness (mm)	2mm to 20mm	4mm to 28mm	2mm to 20mm	2mm to 20mm
Weight per unit length (kg)	65kg to 600kg	950kg to 7000kg	65kg to 600kg	65kg to 600kg