ASTM A500 is a standard specification published by the ASTM for cold-formed welded and seamless carbon steel structural tubing in round, square, and rectangular shapes. It is the most commonly specified ASTM standard in the US for hollow structural sections .

A500钢的抗拉强度为400MPa，屈服强度为290MPa； 对照我国牌号为：Q295B，参考标准GB/T 1591-1994 《低合金高强度结构钢》 ，Q295B是一种低合金高强度结构钢，具有较好的塑性、焊接性能和冲击韧性，冷热加工性能及低、中温性能也很好，有一定的耐蚀性。

Totten Tubes offers A500 structural steel tubing in a range of sizes and shapes. The ASTM A500 specification covers cold-formed welded and seamless. and “special” carbon steel shapes for welded, riveted, or bolted construction applications, as well as for general structural purposes.

ASTM A500 是美国材料与试验协会（ASTM）颁布的一项重要标准，规定了 ASTM A500 的化学成分、机械性能以及检验和包装要求。 ASTM A500 要求结构钢管由符合特定化学成分和机械性能要求的碳钢制成。 这有助于确保钢管能够在各种工程环境中承受适当的负荷和压力。 ASTM A500 包括两种主要 制造工艺：冷弯焊接和无缝生产。 冷成型焊接是将平板弯曲成管状，然后通过焊接将其连接起来。 另一方面，无缝钢管是直接成型的，无需焊接。 这些不同的生产工艺可以灵活 …

Metals USA carries a full assortment of ASTM A500 in all of the standard sizes and thicknesses including both pipe and tube. A500 Grades B and C are employed in applications where strength, structural efficiency, savings in weight, and added durability are important.

Designation: A500/A500M − 21a Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes1 This standard is issued under the fixed designationA500/A500M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last ...

ASTM A500 Grade B属于冷成型焊接与无缝碳素结构钢管标准，主要用于建筑、桥梁等结构领域。 国内Q295B和Q345B均为低合金高强度钢，但Q345B的碳含量和合金元素更高，焊接性能和强度更优，可能需通过调整工艺（如热处理）匹配ASTM标准。

2025年2月5日 · ASTM A500 Grade B vs Grade C We have not discussed Grade A of the ASTM A500 steel grades, because it is not as prominent as Grade B and C are due to its lower mechanical properties. Let us compare Grade B and Grade C, in more detail in this section:

2025年3月13日 · A500 GR.C (often written GRC) is a material grade of carbon steel square/rectangular tubing for structural use in the U.S. Standard, which belongs to high-strength cold-formed steel tubing under the system of ASTM …

2024年8月22日 · ASTM A500 Grade C is a widely used cold-formed seamless and welded carbon structural steel pipe. Grade C has the highest mechanical properties of the three ASTM A500 grades, with a minimum tensile strength of 425 MPa and a minimum yield strength of 345 MPa.