304、304H和304L三种不锈钢材料区别在于含碳量的不同。304不锈钢含碳量0.08%, 304H含碳量在0.04%~0.10%,304L碳含量0.03%以下。三种材料Cr含量都在18%~20%。
304不锈钢抗拉强度≥515MPa,屈服强度≥205MPa;HRJ Tester;304H不锈钢抗拉强度≥515MPa,屈服强度≥205MPa;304L是超低碳不锈钢,抗拉强度≥485MPa,屈服强度≥170MPa;1kN~300kN不锈钢材料拉伸试验机;20kN不锈钢丝拉力试验机;0.1~8mm不锈钢丝扭转试验机;20kN不锈钢腐蚀试验机;50kN不锈钢慢拉伸试验机;HRJ Tester;10kN~50kN不锈钢腐蚀疲劳试验机;10N.m刀叉拉扭试验机;10N.m不锈钢餐具拉扭试验;10N.m水果刀拉扭试验;30kN不锈钢慢应力腐蚀试验;3~10mm高强不锈钢丝扭转试验;1083MPa高强不锈钢拉伸试验;2275MPa高强度不锈钢拉力试验;
304不锈钢适用于制造深冲成型部件和输酸管道、容器结构件、各类仪表本体等,304L不锈钢主要用于需焊接后又不能进行固溶处理的耐蚀设备和部件,304H不锈钢高温性能优于304不锈钢。316不锈钢耐腐蚀性优于304不锈钢,在海水和其他各种介质中,主要用于耐点蚀材料。HRJ Tester;316L不锈钢适用于制造厚截面尺寸的焊接部件和设备,如石油化工设备中的耐蚀材料,316H不锈钢高温性能优于316不锈钢。317不锈钢耐点蚀和抗蠕变能力优于316L不锈钢,用于制造石化及耐有机酸腐蚀的设备。321不锈钢具有良好的高温力学性能。347不锈钢即可作耐蚀材料又可作耐热钢使用,主要用于火电、石化领域,如制作容器、管道、热交换器、轴类、工业炉中的炉管以及炉管温度计等。HRJ Tester;904L不锈钢耐腐蚀性极好。440C不锈钢主要用于制作喷嘴,轴承,阀门的阀芯、阀座、套筒、阀杆等。17-4PH不锈钢具有高强度、硬度和抗腐蚀性,不能用于高于300℃的温度。主要用于制造海上平台,涡轮机叶片等。
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济南恒瑞金试验机有限公司;材料力学试验机制造商;山东省力值硬度计量委员
(试验机服务中心)(试验机配件供应中心)(特殊夹具定制中心)
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