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A315 碳钢管
-产品描述
1. 化学成分
碳钢管主要由铁(Fe)和碳(C)组成，其他元素含量较低。典型成分(以ASTM标准为例)如下：
元素典型范围(重量百分比)备注
碳(C) 0.06%–0.35% 低碳钢(如ASTM A53)通常≤0.30%；高碳钢强度更高但焊接性较差。
锰(Mn) 0.29%–1.06% 增强强度和淬透性；ASTM A106 B级允许0.29–1.06%。
硅(Si) 0.10%–0.35% 改善脱氧并提高强度。
硫(S) ≤0.035% 杂质；过量会导致热脆性。
磷(P) ≤0.035%–0.05% 杂质；过量会降低韧性。
其他微量(如Cu≤0.40%，Ni≤0.40%等) 根据标准要求而异。
示例牌号:
ASTM A53 B级: C≤0.30%，Mn≤1.2%，S≤0.045%，P≤0.05%。
GB/T 8163 20#钢: C 0.17%–0.24%，Mn 0.35%–0.65%，Si 0.17%–0.37%。
2. 机械性能
机械性能取决于成分、热处理(如正火、退火)和加工工艺：
性能典型范围(ASTM标准)示例(ASTM A106 B级)
抗拉强度 415–655 MPa ≥415 MPa
屈服强度 240–450 MPa ≥240 MPa
延伸率 ≥20%–30% (50mm标距长度) ≥30% (壁厚≤22mm)
硬度≤197 HB(布氏)或≤90 HRB 通过热处理控制。
与其他标准对比:
GB/T 8163 20#钢: 抗拉强度≥410 MPa，屈服强度≥245 MPa，延伸率≥25%。
API 5L Gr.B: 抗拉强度≥414 MPa，屈服强度≥241 MPa。
A315 碳钢管
—产品展示
A315 碳钢管
-厂房
A315 碳钢管
-产品包装
BAOWU Metal
BAOWU Metal as a specialist in various steel products, we supply and sell silicon steel, carbon steel, galvanized steel and more. All products get corresponding certifications. We are committed to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction.
Our company is located in Wuxi City, Jiangsu Province, which is the largest steel processing center in China. Our teams specialized in the industry for over 14 years with rich experience in different silicon steel projects, and are familiar with variety of silicon steel standards, such as CE, SGS and so on. We can design and customize for unique requirements, and assure the safety, efficiency and reasonable price. Progressively we have expanded and now have five purpose built distribution warehouses and specialist steel process facilities offering services to the mining, construction, engineering and general fabrication industries around World.
Our company is located in Wuxi City, Jiangsu Province, which is the largest steel processing center in China. Our teams specialized in the industry for over 14 years with rich experience in different silicon steel projects, and are familiar with variety of silicon steel standards, such as CE, SGS and so on. We can design and customize for unique requirements, and assure the safety, efficiency and reasonable price. Progressively we have expanded and now have five purpose built distribution warehouses and specialist steel process facilities offering services to the mining, construction, engineering and general fabrication industries around World.
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