Stainless Steel 316 (US standard ASTM S31600, Chinese standard 06Cr17Ni12Mo2) imolybdenum-ine austenitic stainless simbi, inowanzonzi "marine-giredhi Stainless simbi" nekuda kwekugona kwayo kusakara. Iyo yakavakirwa pa304 simbi isina tsvina pamwe nekuwedzera kwe2-3% molybdenum (Mo), iyo inosimudzira zvakanyanya kuramba kwayo kugomba uye kukoromoka kwegora.
Ⅰ.Key Characteristics
1.Exceptional Corrosion Resistance: Kuwedzerwa kwe molybdenum kunopa kushanda kwepamusoro munzvimbo dzechloride (semuenzaniso, mvura yegungwa, munyu wekupfapfaidza), ine pitting resistance inodarika iyo 304 stainless steel. Kuora kwayo mu10% sulfuric acid inogona kuva isingasviki 0.1 mm/gore.
2.High-Temperature Performance: Yakanaka yakakwirira-tembiricha simba uye oxidation kuramba, neinoenderera sevhisi tembiricha inosvika 870°C uye sevhisi yepakati inosvika 925°C.
3.Mechanical Properties: Goho simba ≥205 MPa, tensile simba ≥515 MPa, elongation ≥40%, kupa kuoma kwakanaka uye basa-kuoma kugona.
4.Low Magnetism: Kwete-magnetic mune mhinduro-annealed state; inogona kuita magineti zvishoma mushure mekutonhora kushanda. Inokodzera midziyo inonzwa kune magineti minda.
Ⅱ.Kuumbwa Kwekemikari (Zviratidzo Zvinokosha)
| Element | Content Range | Function |
| Kabhoni (C) | ≤0.08% | Inodzora kuora kwe intergranular |
| Chromium (Cr) | 16.0-18.0% | Inogadzira passive film, inodzivirira ngura |
| Nickel (Ni) | 10.0-14.0% | Inodzikamisa austenitic chimiro, asidi kuramba |
| Molybdenum (Mo). | 2.0-3.0%. | Core element, inopa pitting kuramba |
| Manganese (Mn) | ≤2.00% | Deoxidizer |
| Silicon (Si) | ≤0.75% | Deoxidizer |
Ⅲ.Typical Mechanical Properties
Room Temperature Mechanical Properties (Solution-Annealed State)
Iyi ndiyo inonyanya kufarirwa 316 simbi isina tsvina, inopa chiyero chakanaka chezvivakwa.
| Property | Typical Value | Chinodiwa Chimiro (ASTM A240) |
| Kusimba Simba (Rm) | 515 - 620 MPa | ≥ 515 MPa |
| Goho Simba (Rp0.2) | 205 - 310 MPa | ≥ 205 MPa |
| Elongation (A) | 40% - 50% | ≥ 40% |
| Kuoma (HBW) | 149 - 217 | ≤ 217 |
| Elastic Modulus (E) | 193 GPA | - |
Notes:
1.Moderate Simba: Goho simba rakapoteredza 200-300 MPa, zvichiita kuti zvive nyore kuumba nekugadzirisa.
2.Excellent Plasticity: Elongation kazhinji pamusoro pe40%, zvichiratidza kusimba kwakanyanya uye kuramba kune brittle kutyoka.
3.Basa Kuomesa: Simba uye kuoma kunowedzera zvakanyanya panguva yekushanda kunotonhora (somuenzaniso, kutonhora kunoputika, kudhirowa), asi plastiki inoderera.
Ⅳ.Primary Application Areas
1.Marine Engineering: Zvigadzirwa zvengarava, mapuratifomu ekumahombekombe, desalination zvishandiso.
2.Chemical & Energy Industries: Reactors, mapaipi, heat exchangers (inopikisa acids/alkalis).
3.Medical & Food Industries: Zvishandiso zvekuvhiya, zvigadzirwa zvemishonga, michina yekugadzira chikafu (inosangana nehutsanana zviyero).
4.Architecture & Decoration: Kuvaka madziro emaketeni, njanji munzvimbo dzemahombekombe (inodzivirira kune munyu spray corrosion).
Ⅴ.Common Derived Grades
316L: Low-carbon version (C≤0.03%), zviri nani weldability uye intergranular corrosion resistance, yakakodzera kune-heavy-section welded components.
316H: High-carbon version, yakakwirira-yepamusoro-tembiricha simba, yakakodzera kune yakakwirira-yepamusoro-yekumanikidza-inotakura zvimiro.
