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Stainless Steel Pipe-Encyclopedia

304 and 316L stainless steel materials are the only health materials that can be implanted into human body, so for water supply pipes, stainless steel pipes are the most beneficial to health. In the immersion water test, all the indicators meet the requirements of the relevant national drinking water standards. Stainless steel pipeline has smooth inner wall, no fouling, no bacterial contamination, anti-bacterial, anti-seismic, anti-tension, high pressure and high temperature resistance, no need to worry about water quality, and can prevent secondary pollution of water.Thin wall stainless steel water supply pipe is recognized as one of the best pipes with comprehensive properties

Stainless Steel Pipe-Encyclopedia

Wide application of stainless steel pipe

304, 316 L thin-walled stainless steel water pipes and pipe fittings series products are widely used in star hotels, medical and health, fire protection, housing, water, food, beverage, schools, airports, subways, high-speed rail, industry, education, ships, industrial desalination projects, drinking water, direct drinking water, cold and hot water, gas and other system fields of large and medium-sized construction projects, and the product sales network has been widely spread It has been exported to Europe, Southeast Asia and other countries and regions, and has established partnerships with many enterprises around the world, with a very broad prospect.

Wide application of stainless steel pipe

不銹鋼材質(zhì)分類基礎(chǔ)知識

2019/7/5 16:44:45

只要鋼種選擇的正確,保養(yǎng)合適,不銹鋼不會產(chǎn)生腐蝕、點(diǎn)蝕、銹蝕或磨損。不銹鋼還是建筑用金屬材料中強(qiáng)度最高的材料之一。由于不銹鋼具有良好的耐腐蝕性,所以它能使結(jié)構(gòu)部件永久地保持工程設(shè)計的完整性。含鉻不銹鋼還集機(jī)械強(qiáng)度和高延伸性于一身,易于部件的加工制造,可滿足建筑師和結(jié)構(gòu)設(shè)計人員的需要。

不銹鋼牌號分組

200系列—鉻-鎳-錳奧氏體不銹鋼

300系列—鉻-鎳奧氏體不銹鋼

型號301—延展性好,用于成型產(chǎn)品。也可通過機(jī)械加工使其迅速硬化。焊接性好?鼓バ院推趶(qiáng)度優(yōu)于304不銹鋼。

型號302—耐腐蝕性同304,由于含碳相對要高因而強(qiáng)度更好。

型號303—通過添加少量的硫、磷使其較304更易切削加工。

型號304—通用型號;即18/8不銹鋼。GB牌號為0Cr18Ni9。

型號309—較之304有更好的耐溫性。

型號316—繼304之后,第二個得到最廣泛應(yīng)用的鋼種,主要用于食品工業(yè)和外科手術(shù)器材,添加鉬元素使其獲得一種抗腐蝕的特殊結(jié)構(gòu)。由于較之304其具有更好的抗氯化物腐蝕能力因而也作“船用鋼”來使用。SS316則通常用于核燃料回收裝置。18/10級不銹鋼通常也符合這個應(yīng)用級別。

型號321—除了因為添加了鈦元素降低了材料焊縫銹蝕的風(fēng)險之外其他性能類似304。不銹鋼裝飾管,201不銹鋼管,304不銹鋼管

400系列—鐵素體和馬氏體不銹鋼

型號408—耐熱性好,弱抗腐蝕性,11%的Cr,8%的Ni。

型號409—最廉價的型號(英美),通常用作汽車排氣管,屬鐵素體不銹鋼(鉻鋼)。

型號410—馬氏體(高強(qiáng)度鉻鋼),耐磨性好,抗腐蝕性較差。

型號416—添加了硫改善了材料的加工性能。

型號420—“刃具級”馬氏體鋼,類似布氏高鉻鋼這種最早的不銹鋼。也用于外科手術(shù)刀具,可以做的非常光亮。

型號430—鐵素體不銹鋼,裝飾用,例如用于汽車飾品。良好的成型性,但耐溫性和抗腐蝕性要差。

型號440—高強(qiáng)度刃具鋼,含碳稍高,經(jīng)過適當(dāng)?shù)臒崽幚砗罂梢垣@得較高屈服強(qiáng)度,硬度可以達(dá)到58HRC,屬于最硬的不銹鋼之列。最常見的應(yīng)用例子就是“剃須刀片”。常用型號有三種:440A、440B、440C,另外還有440F(易加工型)。

500系列—耐熱鉻合金鋼。


600系列—馬氏體沉淀硬化不銹鋼。

型號630—最常用的沉淀硬化不銹鋼型號,通常也叫17-4;17%Cr,4%Ni。