EN10219 S275J0H ASTM A252 GR.3 Carbon Steel Pipes for Structure description
EN10219 S275J0H
This is a standard and grade of non-alloy steel hollow sections for cold forming, as specified in European Standard (EN). S275J0H indicates that the steel pipe uses S275 series steel with a yield strength characteristic value of 275 MPa. "J0" indicates that the steel must possess a certain impact toughness at 0°C, and "H" indicates that the steel is suitable for cold forming (such as cold bending, cold expansion, etc.). It is commonly used in building structures, machinery manufacturing, and other fields, such as factory frames and vehicle components.
ASTM A252 GR.3
This is a standard and grade for welded and seamless steel pipes for piles and similar applications, developed by the American Society for Testing and Materials (ASTM). GR.3 indicates the grade of this steel pipe, which has high strength and good toughness. It is mainly used in pile foundation engineering, such as building pile foundations, bridge pile foundations, and port and dock pile foundations, providing stable foundation support for various buildings and structures.
ASTM A252 GR.3 Piling Pipe Specification
|
Tube size |
6.35 mm OD To 152 mm OD |
|
Tube wall thickness |
0.020"–0.220", (special wall thicknesses available) |
|
Length |
Single Random, Double Random, Standard & Cut length |
|
Pipe end |
Plain End, Beveled End, Threaded |
|
Application |
Oil Pipe & Tube, Gas Pipes & Tube, Fluid Pipes & Tube, Boiler Pipes & Tube, Heat exchanger Tube |
astm a252 grade 3 chemical composition
| Element | Content Range (usually required, may vary slightly depending on the standard and production) | Function |
|---|---|---|
| Carbon (C) | Generally not more than 0.26% | It is the main element affecting the strength and hardness of steel. Increasing the carbon content can improve the strength and hardness of steel, but will reduce its toughness and weldability. |
| Manganese (Mn) | Usually between 0.50% - 1.60% | It can improve the strength, hardness, and wear resistance of steel, and to a certain extent, improve the hot working performance and weldability of steel. |
| Phosphorus (P) | Generally not more than 0.035% | It is a harmful element that increases the cold brittleness of steel and reduces the impact toughness of steel. Its content needs to be strictly controlled in production. |
| Sulfur (S) | Generally not more than 0.045% | It is also a harmful element that causes hot brittleness in steel, reduces the welding performance and mechanical properties of steel, and also needs to be strictly controlled. |
astm a252 grade 3 Mechanical Properties Table
| Performance Index | Value Range | Significance |
|---|---|---|
| Yield Strength | ≥45 ksi (approximately ≥310 MPa) | It marks the stress at which the material begins to undergo significant plastic deformation. The high yield strength of A252 GR3 pipe piles enables them to maintain structural stability when subjected to large loads and prevents premature plastic deformation. |
| Tensile Strength | 66 - 76 ksi (approximately 455 - 524 MPa) | It represents the maximum stress that the material can withstand during the tensile process. This index reflects the reliability of the pipe pile under extreme loading conditions, ensuring that it can withstand large tensile forces before being damaged by tension. |
| Elongation | Usually ≥23% | It is an indicator to measure the plasticity of the material. The higher the elongation, the stronger the ability of the material to undergo plastic deformation before fracture, indicating better toughness and impact resistance. |
comparison table between EN10219 S275J0H and ASTM A252 GR.3:
| Comparison Items | EN10219 S275J0H | ASTM A252 GR.3 |
|---|---|---|
| Standard Source | European standard (EN), formulated by the European Committee for Standardization, widely used in Europe and many other countries and regions that recognize European standards. | American Society for Testing and Materials (ASTM) standard, mainly used in the United States and some countries and regions that adopt American standards. |
| Material Type | Non-alloy steel for cold forming. | Steel for welded and seamless pipes for piling and similar purposes. |
| Key Chemical Components (Typical) | Carbon (C): Content is controlled to meet specific requirements; Manganese (Mn): Present in certain proportions to ensure performance; Phosphorus (P) and Sulfur (S): Strictly limited as harmful elements. | Carbon (C): Usually not more than 0.26%; Manganese (Mn): Typically between 0.50% - 1.60%; Phosphorus (P): Generally not more than 0.035%; Sulfur (S): Generally not more than 0.045%. |
| Mechanical Properties - Yield Strength | Characteristic yield strength value is 275 MPa. | Minimum yield strength is ≥45 ksi (approximately ≥310 MPa). |
| Mechanical Properties - Tensile Strength | Has specific tensile strength requirements according to the standard to ensure sufficient load-bearing capacity. | 66 - 76 ksi (approximately 455 - 524 MPa). |
| Impact Toughness | "J0" indicates that the steel needs to have certain impact toughness at 0℃. | Has certain toughness requirements to adapt to different geological and loading conditions in piling applications, reflected in indicators such as elongation. |
| Main Application Areas | Widely used in building structures, machinery manufacturing, etc., such as factory frames and vehicle components. | Mainly used for piling and similar purposes, such as building piles, bridge piles, and port and wharf piles, providing stable foundation support for various buildings and structures. |
| Size Specifications | Size range and accuracy requirements are specified according to European standards, with outer diameter and wall thickness parameters adapted to European engineering practices and manufacturing processes. | Size specifications are based on American standards, with size ranges and tolerances matching the market demands and manufacturing levels in the United States. |
