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Countries stainless steel valve steel number implementation standard control steel valve main parts material table
2022-11-21
Countries stainless steel valve steel number implementation standard control steel valve main parts material table 321 stainless steel valve equivalent to domestic 1Cr17Ni9Ti,321 stainless steel valve performance is very similar to 304, but because of the addition of titanium metal, so that it has better resistance to grain boundary corrosion and high temperature strength. Due to the addition of titanium metal, it effectively controls the formation of chromium carbide. The 321 stainless steel valve has a better Stress Rupture performance and a higher temperature Creep Resistance in both stress and mechanical properties than the 304 stainless steel valve. 321 Stainless steel valves are used for high resistance to grain boundary corrosion Stainless steel valve main performance purposes 304 stainless steel valve GB 0Cr18Ni9, GB 0Cr18Ni9 as a purpose of stainless steel valve, has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; Stamping, bending and other hot processing good, no heat treatment hardening phenomenon (no magnetic, using temperature -196℃~800℃). 321 stainless steel valve equivalent to domestic 1Cr17Ni9Ti,321 stainless steel valve performance is very similar to 304, but because of the addition of titanium metal, so that it has better resistance to grain boundary corrosion and high temperature strength. Due to the addition of titanium metal, it effectively controls the formation of chromium carbide. The 321 stainless steel valve has a better Stress Rupture performance and a higher temperature Creep Resistance in both stress and mechanical properties than the 304 stainless steel valve. 321 Stainless steel valve is used in high grain boundary corrosion resistance of chemical, coal, petroleum industry in the field of open heat resistant pipeline and heat treatment is difficult pipeline. 316 stainless steel valve GB 0Cr17Ni12Mo2 0Cr17Ni12Mo2, due to the addition of Mo, so its corrosion resistance, atmospheric corrosion resistance and high temperature strength is particularly good, can be used under harsh conditions; 316 stainless steel valves used in: seawater, chemical, dye, paper, oxalic acid, fertilizer and other production equipment; 316L stainless steel valve GB 00Cr17Ni14Mo2 00Cr17Ni14Mo2, as 316L stainless steel valve in addition to the 316 stainless steel valve has the same characteristics, its grain boundary corrosion resistance is better than 316; In addition, the addition of molybdenum element can significantly improve its resistance to intergranular corrosion and oxide stress corrosion, and reduce the hot cracking tendency during welding. 316L stainless steel valve is used in: often used in pure water, distilled water, medicine, sauce, vinegar and other health requirements, medium corrosion performance is strong occasions, 316 stainless steel valve special use against grain boundary corrosion has special requirements of products. 310S stainless steel valve is a standard method of stainless steel valve in the United States, the domestic label is (2520) 0Cr25Ni20, is a kind of austenitic stainless steel valve, the S in 310S refers to the special use of the stainless steel valve. 0Cr25Ni20 (310S) characteristics -- high temperature oxidation resistance, high temperature strength. Use - exhaust pipe Bellows, microwave oven Heater,Tube, high temperature furnace bladder, cremation furnace and other requirements of heat resistance of stainless steel valves. Usually ** often see 304, 316 stainless steel valve is such, 304 standard component is 18% chromium plus 8% nickel, that is generally known as 18-8 stainless steel valve. The characteristics of this kind of stainless steel valve are non-magnetic, can not be changed by heat treatment method of metallography structure, good processing, and because of the alloy element - nickel, so the corrosion resistance is better than only containing chromium (no nickel) of the other two types of stainless steel valves. The main uses of 300 series stainless steel valves are: generally used in petroleum, chemical, pharmaceutical, chemical fertilizer, electric power and other industries of various working conditions on the pipeline. In the minds of ordinary people, the so-called stainless steel valve refers to 300 stainless steel valves (especially 304 stainless steel valves). Steel valve main parts Material table (a) Steel valve main parts Material table (a) part name Material name brand standard number Valve bracket opening and closing parts carbon cast steel WCA, WCB, WCCGB/T 12229 quality carbon steel 20, 25, 30, 35GB/T 699 high-temperature steel ZC1Cr5Mo, ZG20CrMoV, ZG15CrMo1VZBJC8015... Steel valve main parts material table (I) Name of Part material The name of the brand Standard no. The valve body The cover stents Open and close piece Carbon cast steel parts WCA, WCB, WCC GB/T 12229 Quality carbon steel 20, 25, 30, 35 GB/T 699 High temperature steel ZC1Cr5Mo, ZG20CrMoV, ZG15CrMo1V ZBJC8015 WC1, WC5, WC6, and WC9 GB/T 5263 1Cr5Mo GB/T 1221 12CrMoV, 12Cr1MoVA GB/T 3077 Low temperature steel ZGOCr18Ni, ZG1Cr18Ni9 ZGOCr18Ni9Ti, ZG1Cr18Ni9Ti GB/T 12230 (GB/T 2100) LCB, LC1, LC2, LC3 JN/T 7248 OCr18Ni, 1Cr18Ni9 OCr18Ni9Ti, 1Cr18Ni9Ti GB/T 1220 Stainless acid resistant steel ZGOCr18Ni, ZG1Cr18Ni9Ti ZGO0Cr18Ni10, ZG0Cr18Ni12MoTi CF8, CF8M, CF3, CF3M, CF8C GB/T 12230 1Cr18Ni9(302), OCr18NI9(304) 1Cr17Ni2(431), OOCr19Ni11(304L) OCr17Ni12Mo2(316), OOCr17Ni14Mo2(316L) GB/T 1220 The valve stem Stainless steel Chrome steel 1Cr13, 2Cr13, 3Cr13 GB/T 1220 Chromium nickel steel 1Cr17Ni2, 1Cr18Ni9 Inconel titanium steel 1Cr18Ni9Ti Chromium nickel molybdenum titanium steel 1Cr18Ni12Mo2Ti, 1Cr18Ni12Mo3Ti Chromium manganese molybdenum nitrogen steel OCr17Mn13Mo2V Precipitation hardening type OCr17Ni4Cu4Mo(17-4PH) Chrome silicon molybdenum steel 4Cr9Si2, 4Cr10Si2Mo GB/T 1221 Chromium molybdenum-vanadium steel 25Cr2MoV, 25Cr2Mo1V GB/T 3077 Nitriding steel 38CrMoAL(318 Steel) Valve stem nut Cast aluminium bronze ZCuA19Mn2, ZCuA19Fe4Ni4Mn2 GB/T 12225(GB/T 1176) Cast aluminium brass ZCuA19FeNi4Mn2 Austenitic high nickel spheres D-2 ASTM-A439 Body or valve seat Seat, open and close The sealing surface of the body Chrome stainless steel 1Cr13, 2Cr13, 2Cr13 GB/T 1220 Stainless acid resistant steel Bulk material GB12230(GB2100).GB1220 Cobalt chromium tungsten alloy D802(S11), D812(S112) GB/T 984 Spray welding alloy powder F101, F211, F311, F312, F322 JB/T 3168 Polytetrafluoroethylene SFB-1, SFB-2, SFB-3 ZB G33 002(HG2-534) ZB G33 003(HG2-535) SFBN-1, SFBN-2, SFBN-3 Steel valve main parts material table (2) Name of Part material The name of the brand Standard no. Stud, bolt nut Quality carbon steel 35A GB699/GB699 Alloy structural steel/mass carbon steel 35CrMo/35, 35CrMoA/45(B7/2H) GB3077/GB699 Alloy structural steel 25CrMoVA/35CrMo, 20CrMoV/30CrMo 15CrMo1V/20CrMo(B16/4) 35CrMoA/20CrMo(B77) GB3077/GB3077 Stainless steel 1Cr17Ni2/2Cr13, OCr18Ni9/OCr18Ni9(B8/8) OCr17Ni12Mo2/OCr17Ni12Mo2(B8M/8M) GB1220/GB1220 gasket Stainless steel tape - asbestos wound gasket 1Cr12/XB450, 1Cr18Ni9/XB450 GB2598/GB3985 Wave shaped pad 08 GB708 Rubber asbestos sheet XB350, XB450 GB3985 Stainless steel plate OCR18Ni9, 1Cr18Ni9 OCr18Ni9Ti, 1Cr17Ni13Mo2Ti GB3280 Pure copper T2T3 GB2040 Pure aluminium L2T3 GB3880 Metal ring pad 08 or 10 GB699 OCr13, OCr19Ni9, OCr17Ni12Mo2 GB1220 Teflon board SFB-1, SFB-2 ZB G33 002 Stainless steel with flexible graphite (or polytetrafluoroethylene) elastomeric gasket SH J407 Flexible graphite composite gasket HG J70 Teflon coated gasket SHJ402 packing Flexible graphite packing ring JN/T6617 Flexible graphite braided packing RBTNI-450, RBTN2-600 TBTW1-300, RBTW2-450, RBTW2-600 Polytetrafluoroethylene ring braided packing SFB/260, SFGS/260 SFP/260, SEPS/250 JN/T6626 Teflon ring SFT-1, SFT-2, SFT-3, SFT-4 HG2-538 The handwheel Malleable cast iron KTH330-08, KTH250-10 GB8440 Nodular cast iron QT400-15, QT450-10 GB12227 Note: 1. Flexible graphite packing ring must be assembled with flexible graphite braided packing. 2. The sealing surface of valve seat and opening and closing parts shall be marked with other non-metallic sealing materials.