S30400是什么钢材,与S30408什么区别?

2025-03-26 04:16:43
推荐回答(3个)
回答1:

执行标准不一样,其他都一样。

S30400是在302基础上发展来的材料,性能类302,但耐蚀性能比302好,具有很好的耐腐蚀性能以及冷加工冲压性能。对氧化性酸具有很强的耐腐蚀性。对碱溶液及大部分有机酸和无机酸有1定的耐蚀能力,低温性能好,在-180度条件下强度、伸长率和断面收缩率都很好。可用于作薄截面尺寸的焊接件,是应用量大,使用范围广的不锈钢。通用耐氧化钢,可承受870度以下的反复加热。

 

一、S30400对应牌号:1、国标GB-T标准:数字牌号:S30408、新牌号:06Cr19Ni10、旧牌号:0Cr18ni9,2、美标:ASTMA标准:S30400,SAE标准:30304,UNS标准:304,3、日标JIS标准:sus304,4、德标DIN标准:1.4301,5、欧标EN标准:X5CrNi18-10,法标NF标准:z6cn18-09,英标BS标准:304S15,瑞典:23,322,333,NTR标准:AISR。

 

二、S30400化学成分:⑴碳C:≤0.8,⑵硅Si:≤1.00,⑶锰Mn:≤2.00,⑷磷P:≤0.045,⑸硫S:≤0.030,⑹铬Cr:18.00~20.00,⑺镍Ni:8.00~11.00,⑻钼Mo:—,⑼氮N:—,⑽铜Cu:—,⑾其它元素:—。

 

三、S30400物理性能:①密度密度(20℃)

/kg/dm3:"7.93,②熔点/℃:—,③比热容(0~100℃)/kg/(kg.k):0.5",④热导率/w/(m.k)100℃-:"16.3",⑸热导率/w/(m.k)

500℃-:

"21.5 ",⑥线胀系数

/(10-6/k)0~100℃:" 17.2",⑦线胀系数/(10-6/k)

0~508℃:

"18.4",⑧电阻率(20℃)

/(Ω.mm2/m):"0.73",⑨纵向弹性模量

(20℃)/GPa:"193,⑩磁性:无。

 

四、S30400力学性能:⑴交货状态:棒材切削加工固溶处理,热压力加工不固溶处理,板材固溶酸洗,⑵抗拉强度(RM/MPa):520,⑶延伸强度(Rp0.2/MPa):205,⑷伸长率A/%:40,⑸断面收缩率(Z/%):60。

 

五、S30400热处理:①硬度HBW≤:固溶187,硬度HRB≤:90,②加热温度:1010~1150,③加热方式:快冷。

 

S30400应用领域:用于制造深冲成形部件和输酸管道、容器、结构件等,也可以制造无磁、低温设备和部件。

回答2:

S30400与S30408属于同一种材质,只是S30400是美标牌号,S30408是国标牌号。

S30408(06Cr19Ni10) 属于国标奥氏体不锈钢,执行标准:GB /T 1221-2007

S30400(304)属于美标奥氏体不锈钢,执行标准:ASTM A240-2017

S30408(06Cr19Ni10) 化学成分如下图:

回答3:

S30400是一种不锈钢,也被称为18-8系列不锈钢,其中含有18%的铬和8%的镍。这种钢材因其良好的耐腐蚀性、耐热性和机械特性而被广泛应用。它易于切削、挤压、冷成型和焊接,适用于制作要求良好综合性能(耐腐蚀和成型性)的设备和机件。S30400不锈钢还是国家认可的食品级不锈钢,可以安全地用于食品加工业。
S30408材质相当于我国标准(GB/T24511-2017)下的06Cr19Ni10材质,是常用的不锈钢材料。它是UNS编号系统中对材质为304的、材质序号为08的材料的称呼。
关于S30400和S30408的区别,虽然两者都属于304系列不锈钢,但在某些方面可能存在细微的差别。S30400是在302基础上发展来的材料,性能类似于302,但耐蚀性能比302好。而S30408则是具体的材质编号,在化学成分和物理性能上可能与S30400有细微的差异。此外,两者的应用领域也可能略有不同,但都是广泛应用的不锈钢材料。

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