山東九港泰スコ鋼鉄, 株式会社.
アメリカ鉄鋼協会は、可鍛性ステンレス鋼のさまざまな標準グレードをマークするために 3 桁を使用しています。. の:
①オーステナイト ステンレス鋼 is marked with 200 と 300 series numbers, 例えば, some of the more common austenitic stainless steels are marked with 201, 304, 316 と 310.
②Ferritic and martensitic stainless steels are represented by numbers in the 400 シリーズ.
③Ferritic stainless steel is marked with 430 と 446, and martensitic stainless steel is marked with 410, 420 and 440C.
④ Duplex (austenite-ferrite), ステンレス鋼, precipitation hardening stainless steel and high alloys with iron content less than 50% are usually named by patent names or trademarks.
4). Standard Classification and Grading
4-1 Grading classification:
① National standard GB ② Industry standard YB ③ Local standard ④ Enterprise standard Q/CB
4-2 分類:
①Product Standard ②Packaging Standard ③Method Standard ④Basic Standard
4-3 standard level (divided into three levels):
Level Y: International Advanced Level I Level: General International Level H Level: Domestic Advanced Level
4-4 GB
GB1220-84 stainless steel bar (grade I) GB4241-84 stainless steel welding plate (grade H)
GB4356-84 stainless steel welded disc garden (level I) GB1270-80 stainless steel pipe (level I)
GB12771-91 stainless welded pipe (Y grade) GB3280-84 stainless cold plate (I grade)
GB4237-84 stainless hot plate (level I) GB4239-91 stainless cold strip (level I)
耐食性 ステンレス鋼 decreases with the increase of carbon content. したがって, the carbon content of most stainless steels is low, the maximum does not exceed 1.2%, and the ωc (carbon content) of some steels is even lower than 0.03% (such as 00Cr12 ). The main alloying element in stainless steel is Cr (クロム). Only when the Cr content reaches a certain value, the steel has corrosion resistance. したがって, stainless steel generally has a Cr (クロム) content of at least 10.5%. Stainless steel also contains Ni, の, マン, N, Nb, モー, と, Cu and other elements.
Stainless steel is an alloy of iron that contains at least 10.5% クロム. It is known for its high strength, 耐食性, と耐久性. The following are the main structural components of stainless steel:
鉄: The primary component of stainless steel is iron. Iron gives stainless steel its strength and durability.
クロム: Stainless steel contains at least 10.5% クロム, which gives it its resistance to corrosion. Chromium reacts with oxygen to form a thin, invisible layer of chromium oxide on the surface of the steel. This layer is self-healing and protects the steel from further corrosion.
ニッケル: Nickel is often added to stainless steel to improve its corrosion resistance and enhance its strength. The addition of nickel also helps to make the steel more ductile, meaning it can be stretched and molded into different shapes.
モリブデン: Molybdenum is added to some types of ステンレス鋼 to improve their resistance to pitting and crevice corrosion in harsh environments, such as in marine and chemical processing applications.
炭素: 強度と硬度を向上させるために、一部の種類のステンレス鋼に炭素が添加されます. ステンレス鋼の炭素量は通常、 0.08%.
その他の要素: その他の要素, 銅など, 窒素, と硫黄, ステンレス鋼に添加して、特定の用途の特性を強化することもできます.
全体, the combination of these components creates a material that is strong, 耐久性のある, 腐食に強い, 幅広い産業用および商業用アプリケーションに最適です.
山東九港泰スコ鋼鉄, 株式会社. 美しい春の街 - 済南にあります。 ,山東省の省都. 人民元を超える当社の登録資本金 50 百万. 私たちはRを融合した総合グループ企業です&D, 製造, 鉄鋼製品の販売・サービス.
If you are interested in stainless steel or carbon steel product,お問い合わせください. 電話: +86-13375310907 Eメール: manager@shandongtisco.com
