Tubo Preto DIN 2458 em Aço Carbono para Caldeiras e Estruturas

Tubo Soldado Em St37.2, Com Acabamento Preto Ou Galvanizado, Ideal Para Sistemas De Condução, Estruturas E Caldeiras.

Tubo preto din 2458 oferece resistência mecânica, conformidade com padrões europeus e versatilidade de uso em caldeiras, estruturas metálicas e condução de fluidos.

DIN 2458 Tubo Preto Aço Carbono St37.2 +2 More

Tubo Preto DIN 2458 em Aço Carbono para Caldeiras e Estruturas

Tubo Soldado Em St37.2, Com Acabamento Preto Ou Galvanizado, Ideal Para Sistemas De Condução, Estruturas E Caldeiras.

Tubo preto din 2458 oferece resistência mecânica, conformidade com padrões europeus e versatilidade de uso em caldeiras, estruturas metálicas e condução de fluidos.

DIN 2458 Tubo Preto Aço Carbono St37.2 +2 More

DIN 2458 Tubo Preto refers to welded carbon steel pipes manufactured to the DIN 2458 standard, renowned for their strength and durability. These black steel pipes are ideal for construction piping, water transport pipes, and industrial piping systems, including applications in evaporators, heaters, and gas conduits. The standard outlines dimensions and masses, ensuring compliance with technical delivery conditions as per related standards like DIN 1628.

DIN 2458 Tubo Preto is produced with a longitudinal weld, typically using carbon steel grades like St37.2, which provides robust mechanical properties. Available in black or galvanized finishes, these pipes come with plain, beveled, or threaded ends (BSP or NPT), making them versatile for structural and low-pressure fluid conduction applications (up to 150 lbs). They are available in outer diameters from 12.7 mm to 127 mm, wall thicknesses from 0.9 mm to 9.1 mm, and standard lengths of 6 meters.

These carbon steel welded pipes undergo stringent testing, including hydrostatic tests at 40 kg/cm² (570 PSI), to ensure reliability in demanding environments. Optional heat treatments, such as normalization at 920°C, enhance their suitability for applications like thermal exchange systems. Surface treatments like galvanizing improve corrosion resistance, making them suitable for harsh conditions in construction and industrial settings.

Compared to seamless pipes like DIN 2391, DIN 2458 Tubo Preto offers a cost-effective solution for applications where high precision is not critical. Their welded construction and ability to undergo cold working processes like flanging and bending make them ideal for construction piping and water transport pipes. Widely used in Brazil and globally, they align with equivalent standards like NBR 5595 for thermal exchange applications.

DIN 2458 Tubo Preto addresses challenges such as structural stability and efficient fluid transport in low-pressure systems. Their robust design and compliance with rigorous standards make them a trusted choice for engineers and contractors in construction, industrial machinery, and water distribution projects, ensuring performance and longevity.

Key Benefits

Durability

Robust carbon steel construction ensures long-term reliability.

Cost-Effective

Welded design offers affordable solutions for low-pressure systems.

Versatile Applications

Suitable for construction, water transport, and industrial piping.

Formability

Supports flanging, bending, and cold working for diverse designs.

Corrosion Resistance

Galvanized options enhance resistance to rust in harsh environments.

Reliable Testing

Hydrostatic testing ensures performance under pressure.

Technical Specifications

Chemical Composition of Tubo Preto DIN 2458 em Aço Carbono para Caldeiras e Estruturas
Element	Composition (%)
Carbon (C)	≤0.17
Manganese (Mn)	≤1.40
Phosphorus (P)	≤0.045
Sulfur (S)	≤0.045
Silicon (Si)	≤0.55

Mechanical Properties of Tubo Preto DIN 2458 em Aço Carbono para Caldeiras e Estruturas
Property	Value
Tensile Strength, min (MPa)	340–470
Yield Strength, min (MPa)	235
Elongation, min (%)	20

Comparison of DIN 2391 Tubes with Other Pipe Grades
Feature	DIN 2391 Tubes	ASTM A106 Grade B	EN 10305-1 Tubes
Material Type	Carbon Steel	Carbon Steel	Carbon Steel
Temperature Range	Ambient to moderate	High (up to 427°C)	Ambient to moderate
Precision	High (Tight tolerances)	Moderate	High (Similar to DIN 2391)
Corrosion Resistance	Good (With coatings)	Moderate	Good (With coatings)
Applications	Hydraulic, Automotive, Industrial	Boilers, Refineries	Hydraulic, Mechanical
Tensile Strength (MPa)	580 (St52)	415 (min)	580 (E355)
Yield Strength (MPa)	420 (St52)	240 (min)	450 (E355)
Key Advantage	High precision and surface quality	General high-temp use	High precision for mechanical use

Designations and Descriptions of Tube Processing Conditions
Designation	Symbol	Description
Cold finished (hard)	BK	Tubes do not undergo heat treatment following the final cold forming and thus, have a rather high resistance to deformation.
Cold finished (soft)	BKW	The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding).
Cold finished and stress-relieved	BKS	Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree.
Annealed	GBK	The last cold forming process is followed by annealing in a controlled atmosphere.
Normalized	NBK	The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.

Comparison of Tube Processing Symbols Between Standards
Symbol in accordance with EN 10305	Symbol in accordance with DIN 2391	Processing Description
+C	BK	Cold finished (hard)
+LC	BKW	Cold finished (soft)
+SR	BKS	Cold finished and stress-relieved
+A	GBK	Annealed
+N	NBK	Normalized

Frequency of Inspection and Testing for Steel Products
Inspection or Test Types	Test Frequency
Inspection or Test Types	Internal Test	Acceptance Test
Chemical analysis	M	M
Tensile testing	M	One per tested batch
Flattening test or extension test	M	Two per tested batch
Dimension verification	M	M
Visual inspection	M	M
NDT in order to identify leaks	Individual	Individual

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A curated list of long-tail keywords for DIN 2458 Tubo Preto, covering specifications, applications, and material properties, presented in a multi-column layout.

Standards and Specifications

• DIN 2458 Tubo Preto specifications
• DIN 2458 St37.2 welded pipe standards
• DIN 2458 black steel pipe properties
• DIN 2458 NBR 5595 thermal exchange pipes

Applications

• DIN 2458 Tubo Preto for construction piping
• DIN 2458 black steel pipes for water transport
• DIN 2458 welded pipes for evaporators
• DIN 2458 carbon steel pipes for industrial systems

Material and Grades

• DIN 2458 St37.2 carbon steel pipe material
• DIN 2458 black steel pipe grades
• DIN 2458 welded pipe corrosion resistance

Manufacturing and Testing

• DIN 2458 Tubo Preto manufacturing process
• DIN 2458 welded pipes hydrostatic testing
• DIN 2458 black steel pipes heat treatment

Procurement and Suppliers

• DIN 2458 Tubo Preto suppliers
• DIN 2458 black steel pipes distributors
• DIN 2458 welded pipes price

Dimensions and Customization

• DIN 2458 Tubo Preto dimensions
• DIN 2458 welded pipe tolerances
• DIN 2458 black steel pipes custom lengths

Note: DIN 2458 covers welded carbon steel pipes for structural and low-pressure fluid applications. For detailed specifications, refer to the DIN 2458 standard or contact a certified supplier.

DIN 2458 Tubo Preto refers to welded carbon steel pipes designed for structural and low-pressure fluid transport applications, such as construction, water distribution, and industrial piping systems.

The standard primarily covers carbon steel grades like St37.2, suitable for structural and fluid conduction applications.

- St37.2: C ≤0.17%; Si ≤0.55%; Mn ≤1.40%; P ≤0.045%; S ≤0.045%

Typical ranges for St37.2:
- Tensile Strength: 340–470 MPa
- Yield Strength: ≥235 MPa
- Elongation: ≥20%

Outer diameters range from 12.7–127 mm; wall thicknesses 0.9–9.1 mm; standard lengths typically 6 m. Tolerances: OD ±1%, wall thickness ±12.5%.

Produced via longitudinal welding; optional heat treatments include normalization at 920°C in a controlled atmosphere for enhanced properties.

Required tests include hydrostatic testing (40 kg/cm² or 570 PSI), weld seam inspection, dimensional checks, and surface quality assessments.

Used in construction frameworks, water distribution, industrial piping, thermal exchange systems, agricultural equipment, and mechanical setups.

Marked with standard, grade, OD×WT, heat number, and manufacturer ID near ends. Orders specify standard, grade, dimensions, length, finish (black or galvanized), and test certificates.

Commonly compared equivalents include:
- St37.2 ≈ ASTM A53 Grade A
- St37.2 ≈ EN 10217-1 P235TR1

Industrial Applications

DIN 2458 Tubo Preto is widely used in industries requiring strength, durability, and cost-effective solutions for structural and low-pressure fluid transport applications.

Construction Industry

Used in structural frameworks, scaffolding, and building supports for robust construction projects.

Water Transport

Ideal for water distribution networks and irrigation systems with low-pressure requirements.

Industrial Piping

Used in low-pressure gas and air conduits for industrial machinery and systems.

Thermal Exchange Systems

Applied in evaporators, heaters, and superheaters for efficient heat transfer.

Agricultural Equipment

Utilized in irrigation systems and structural components for farming machinery.

Mechanical Systems

Supports fluid transport and structural roles in industrial mechanical setups.

Tubo Preto DIN 2458 em Aço Carbono para Caldeiras e Estruturas

Tubo Preto DIN 2458 em Aço Carbono para Caldeiras e Estruturas