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6503f8 ib
Cov khoom

Khoom Parameters

Number/Composition C Thiab Mn S P Cr Hauv Mo IN Lwm yam Yam ntxwv Siv
20# 0.17-0.23 dr hab 0.17-0.37 Nws 0.35-0.65 Nws ≤ 0.035 ≤ 0.035           Nws muaj cov khoom zoo hauv plasticity, tenacity, vuam thiab txias punching, tab sis nws lub zog yog tsawg. Nws yog siv rau cov khoom uas tsis tshua muaj zog uas yuav tsum tau muaj siab tenacity xws li: levers, ncej tes tsho thiab siab thawv raj phaj.
35 # 0.32-0.39 Nws 0.17-0.37 Nws 0.50-0.80 Nws ≤ 0.035 ≤ 0.035           Nws yog qhov zoo hauv plasticity thiab lub zog, tab sis nws muaj kev ncaj ncees vuam kev ua tau zoo. Nws yog siv rau hauv kev tsim cov crankshafts, lub tog raj kheej blocks, twj tso kua mis lub cev, ntau yam qauv thiab fastener.
45 # 0.42-0.50 Nws 0.17-0.37 Nws 0.50-0.80 Nws ≤ 0.035 ≤ 0.035           Qhov no feem ntau siv nruab nrab carbon quenched thiab tempered steel yog zoo nyob rau hauv lub zog thiab tenacity nrog tsawg hardenability, thiab tempering yog siv rau me me qhov chaw, normalizing yog siv rau loj qhov chaw. Nws yog siv rau kev tsim cov khoom muaj zog txav, xws li shafts, gears, worm gears, thiab lwm yam.
50 # 0.47-0.55 Nws 0.17-0.37 Nws 0.50-0.80 Nws ≤ 0.035 ≤ 0.035           Nws muaj lub zog siab thiab zoo elasticity, tab sis nws muaj qhov tsis zoo hardenability thiab weldability, uas yooj yim rau tawg thaum siv dej quenching. Nws yog siv rau kev tsim cov pwm loj los yog formwork.
60 # 0.57-0.65 Nws 0.17-0.37 Nws 0.50-0.80 Nws ≤ 0.035 ≤ 0.035           Nws muaj zog heev thiab elasticity thiab nws yog ib qho yooj yim kom muaj kab nrib pleb thaum quenching. Dab tsi ntxiv, nws muaj tsawg plasticity hauv txias deformation. Nws yog siv rau kev tsim shafts, yob, caij nplooj ntoos hlav washers.
20 CrMo 0.17-0.24 dr hab 0.17-0.37 Nws 0.40-0.70 Nws ≤ 0.035 ≤ 0.035 0.80-1.10 Nws   0.15-0.25 dr hab     Nws muaj zog heev tab sis ncaj ncees hauv cov khoom siv vuam. Nws yog tsuas yog siv nyob rau hauv kev tsim khoom ntawm siab thawv qhov chaw nyob rau hauv roj av, tshuaj thiab boiler.
35CrMo 0.32-0.40 Nws 0.17-0.37 Nws 0.40-0.70 Nws ≤ 0.035 ≤ 0.035 0.80-1.10 Nws   0.15-0.25 dr hab     Nws muaj lub zog siab, zoo tenacity thiab zoo hardenability. Nws yog siv nyob rau hauv kev tsim cov loj-section zog thiab tsav shafts, turbine spindles, perforators rau roj av machinery, thiab lwm yam.
42CrMo 0.38-0.45 Nws 0.17-0.37 Nws 0.40-0.70 Nws ≤ 0.035 ≤ 0.035 0.90-1.20 Nws   0.15-0.25 dr hab     Nws muaj lub zog siab, zoo tenacity thiab zoo hardenability. Nws yog siv rau kev tsim khoom loj-seem zog thiab tsav shafts, lub tog raj kheej cav, roj drilling cuab yeej, thiab lwm yam.
20 CrMnTi 0.17-0.23 dr hab 0.17-0.37 Nws 0.80-1.10 Nws ≤ 0.04 ≤ 0.04 1.10-1.30 Nws       Ti 0.04-0.10 Nws muaj lub zog siab, zoo tenacity thiab zoo hardenability nrog nto hardness mus txog HRC56-62 tom qab carburizing. Nws yog siv los ua lub zog ntawm cov nkoj, tsheb thiab tsheb laij teb uas xav tau lub zog siab thiab tenacity.
35 CrMnTi 0.32-0.39 Nws 1.10-1.40 Nws 0.80-1.10 Nws ≤ 0.035 ≤ 0.035 1.10-1.40 Nws         Nws muaj lub zog siab nrog qee yam tenacity. Nws yog siv nyob rau hauv kev tsim cov high-pressure blower impellers, high-strength qhov chaw rau aircraft.
40 CrNi 0.37-0.44 Nws 0.17-0.37 Nws 0.50-0.75 Nws ≤ 0.035 ≤ 0.035 0.45-0.75 Nws 1.10-1.40 Nws       Nws muaj lub zog siab thiab zoo tenacity. Nws yog siv nyob rau hauv kev tsim cov khoom uas yuav tsum tau muaj zog thiab siab tenacity, xws li: rauj rods, shafts, zog, txuas rods, thiab lwm yam.
34CrNi3Mo 0.30-0.40 Nws 0.17-0.37 Nws 0.50-0.80 Nws ≤ 0.025 ≤ 0.025 0.70-1.10 Nws 2.75-3.25 Nws 0.25-0.40 Nws     Nws muaj lub zog siab thiab hnav-resistant thiab kub ua hauj. Nws yog siv rau hauv kev tsim khoom ntawm cov khoom tseem ceeb uas yuav tsum muaj lub zog siab, hnav tsis kam thiab kub tsis kam hauv cov tshuab.
p913 ua
32Cr3Mo1v		 0.31-0.34 dr hab 0.20-0.40 Nws 0.30-0.50 Nws ≤ 0.025 ≤ 0.025 2.80-3.20 Nws ≤ 0.08 0.90-1.10 Nws 0.18-0.23 dr hab   Nws muaj lub zog siab thiab hnav-resistant thiab kub ua hauj. Nws yog siv los ua cov yas pwm thiab formworks nrog ntau qhov ntau, siab qhov tseeb thiab qhov chaw, thiab kev ua tiav siab.
34Cr2Ni2Mo 0.30-0.38 Nws 0.17-0.37 Nws 0.40-0.70 Nws ≤ 0.025 ≤ 0.035   1.40-1.70 Nws 0.15-0.30 Nws     Raws li ib tug high-zoo tempered steel ntawm npib tsib xee thiab tooj liab, nws muaj zog toughness thiab hardenability. Nws yog siv rau rivets, tsav hlau rau tes, vortex shafts, pinions, racks, zog, thiab lwm yam.
GCr15 0.95-1.05 Nws 0.15-0.35 dr hab 0.25-0.45 Nws ≤ 0.025 ≤ 0.025 1.40-1.65 Nws ≤ 0.30     Nrog
≤ 0.25		 Nws muaj zoo hnav tsis kam thiab hardenability. Nws yog siv los ua cov bearings, pob, thiab lwm yam.
2 cr13 0.16-0.25 dr hab ≤ 1.00 ≤ 1.00 ≤ 0.030 ≤ 0.040 12.00-14.00 Nws         Nws yog corrosion-resistant, qhia ib tug ntau dua stability tshwj xeeb tshaj yog tom qab tshav kub kev kho mob thiab polishing. Nws yog siv los ua cov khoom uas muaj kev cuam tshuam rau kev thauj khoom thiab siab plasticity nyob rau hauv corrosive tej yam kev mob.
1Cr18Ni9 Ti 0.17-0.23 dr hab 0.17-0.37 Nws 0.35-0.65 Nws ≤ 0.035 ≤ 0.035 0.35-0.65 Nws 0.35-0.65 Nws 0.35-0.65 Nws ≤ 0.035 ≤ 0.035 Cov khoom siv tsis-scaling no muaj cov kua qaub qis dua 600 ° C, thiab kub tsis kam qis dua 100 ° C. Nws yog siv rau forgings ntawm cov cuab yeej siv tshuaj, nrog rau cov nozzles thiab cov khoom siv ntawm lub tshuab hluav taws xob aero, thiab lwm yam.
P20 (3Cr2Mo) 0.28-0.40 Nws 0.20-0.80 Nws 0.60-1.00 Nws ≤ 0.030 ≤ 0.030 1.40-2.00 Nws   0.30-0.55 dr hab     Nws yog ib tug raug pre-hardened yas tuag steel nrog zoo hardenability thiab uniform hardness faib nyob rau hauv seem ntawm cov khoom tom qab pre-hardening, thiab nws kuj muaj zoo EDM thiab polishing zog. Nws yog siv los ua cov pwm loj rau cov yas uas muaj ntau ntau, cov pwm nyuaj, siab precision, thiab du nto.
718 ib 0.32-0.40 Nws 0.20-0.40 Nws 0.60-0.80 Nws ≤ 0.030 ≤ 0.030 1.70-2.00 Nws 0.85-1.15 Nws 0.25-0.40 Nws     Nws yog P20 + Ni. Vim muaj qhov sib ntxiv ntawm Ni, nws yooj yim dua rau quench dua P20, nrog zoo toughness thiab zoo txhua yam khoom. Nws yog siv los ua cov pwm loj rau cov yas uas muaj ntau ntau, cov pwm nyuaj, siab precision, thiab du nto.
2738 ib 0.35-0.45 Nws 0.20-0.40 Nws 1.30-1.60 Nws ≤ 0.035 ≤ 0.035 1.80-2.10 Nws 0.90-1.20 Nws 0.15-0.25 dr hab     Nws yog P20 + Ni. Vim muaj qhov sib ntxiv ntawm Ni, nws yooj yim dua rau quench dua P20, nrog zoo toughness thiab zoo txhua yam khoom. Nws yog siv los ua cov pwm uas yuav tsum tau siab dua P20.
40 Cr 0.37-0.44 Nws 0.17-0.37 Nws 0.35-0.65 Nws ≤ 0.035 ≤ 0.035 0.80-1.10 Nws ≤ 0.30       Raws li feem ntau siv quenched thiab tempered steel, nws muab cov yas zoo, toughness thiab lub zog, tab sis tsis zoo vuam kev ua tau zoo. Nws yog siv los ua cov pwm uas yuav tsum tau siab dua P20.
S45 C 0.42-0.48 Nws 0.15-0.35 dr hab 0.60-0.90 Nws ≤ 0.035 ≤ 0.030 ≤ 0.20 ≤ 0.20       Nws yog cov pa roj carbon steel nrog zoo heev plasticity, toughness thiab lub zog, tab sis dav vuam kev ua tau zoo. Nws yog siv los ua cov khoom siv siab load xws li crankshafts, spindles, mandrels, gearshafts, thiab lwm yam.
S50 C 0.47-0.53 Nws 0.15-0.35 dr hab 0.60-0.90 Nws ≤ 0.035 ≤ 0.030 ≤ 0.20 ≤ 0.20       Piv nrog rau 45 #, nws muaj zog dua thiab hardness tab sis tsis zoo plasticity toughness. Qhov no yog dav siv nyob rau hauv tshuab qhov chaw, uas yog siv los ua chav turbine qhov chaw uas tsis tshua muaj kev cuam tshuam, xws li crankshafts, spindles, zog thiab tuag ntas.
S55 C 0.52-0.58 Nws 0.15-0.35 dr hab 0.60-0.90 Nws ≤ 0.035 ≤ 0.030 ≤ 0.20 ≤ 0.20       Nws yog ib qho nyuaj thiab muaj zog dua, thiab elasticity zoo dua 50 #, tab sis nws cov yas toughness yog phem dua 45 #. Nws yog siv los ua formworks nrog lub zog siab dua thiab hardness, thiab qhov chaw uas muaj kev txwv tsis pub muaj zog thiab muaj kev cuam tshuam me me, xws li shafts, txhuam discs, yob, iav, thiab lwm yam.
5CrNiMo
5CrNiMoV		 0.50-0.60 Nws ≤ 0.40 0.50-0.80 Nws ≤ 0.030 ≤ 0.030 0.50-0.80 Nws 1.40-1.80 Nws 0.15-0.30 Nws 0.05-0.30 Nws   Nws muaj lub zog siab, zoo toughness, nrog rau kev ua haujlwm zoo heev thiab hnav tsis kam ntawm qhov kub thiab txias. Nws yog siv los ua cov menyuam shafts, springs thiab pwm uas xav tau lub zog siab.
H13
4Cr5MoSiV 1		 0.32-0.42 Nws 0.80-1.20 Nws 0.20-0.50 Nws ≤ 0.030 ≤ 0.030 4.75-5.50 Nws   1.10-1.75 Nws 0.80-1.20 Nws   Nws muaj qhov zoo hardenability, zoo heev txhua yam khoom ntawm qhov kub thiab txias, zoo tshav kub tsis kam thiab thermal qaug zog tsis kam, thiab zoo dua tiv taus yaig los ntawm cov kua hlau.

Nws yog siv los ua forging tuag nrog loj cuam tshuam load, complex zoo thiab siab precision, raws li zoo raws li extrusion tuag, tuag-casting pwm thiab yas pwm yuav tsum tau kev pab cuam lub neej.
3 cr2w8v 0.30-0.40 Nws ≤ 0.40 ≤ 0.40 ≤ 0.030 ≤ 0.030 2.20-2.70 Nws ≤ 0.25   0.20-0.50 Nws 7.5-9.00 Nws Cov khoom hnav-tiv taus no muaj qhov tawv tawv, uas nws qhov kub tsis kam yog zoo dua li H13, tab sis qhov cuam tshuam kev ua haujlwm tsis zoo. Nws yog siv los ua presses, kab rov tav forging tshuab, forging thiab extrusion tuag, tuag-casting moulds, thiab kub yas molding molds nyob rau hauv high kub thiab tsis tshua muaj kev cuam tshuam.
38CrMoAl 0.35-0.42 Nws 0.20-0.45 dr hab 0.30-0.60 Nws ≤ 0.035 ≤ 0.035 1.35-1.65 Nws   0.15-0.25 dr hab   AI 0.70-1.10 Cov qib high-qib ammoniated steel no muaj qhov tawv tawv, lub zog ua haujlwm, lub zog qaug zog, zoo kub tsis kam thiab corrosion kuj tom qab tau ammiated, tsis muaj tempering brittleness. Nws yog siv los ua qhov muaj zog ntawm kev qaug zog, hnav tsis kam thiab kub tsis kam, xws li lub tshuab yas them cov thoob, siab siab valve stems, lub tog raj kheej liner thiab lub zog, thiab lwm yam.
T8 0.75-0.84 Nws ≤ 0.35 ≤ 0.40 ≤ 0.030 ≤ 0.035 ≤ 0.25 ≤ 0.20       Nws muaj lub siab hardness, zoo hnav tsis kam, lub zog thiab toughness. Nws yog siv los ua cov cuab yeej hnav-tiv taus uas yuav tsum tau muaj zog dua thiab muaj qee yam cuam tshuam. Xws li xuas nrig ntaus, cov ntaub ntawv thiab cov saw hniav.
T10 0.95-1.04 Nws ≤ 0.35 ≤ 0.40 ≤ 0.030 ≤ 0.035 ≤ 0.25 ≤ 0.20       Nws muaj siab hardness, zoo hnav tsis kam, tab sis tsis toughness. Nws yog siv los ua cov cuab yeej muaj zog hardness, hnav tsis kam thiab cuam tshuam me me, xws li scrapers, kais, kos duab tuag, thiab lwm yam.
3 cr13 0.26-0.35 dr hab ≤ 1.00 ≤ 1.00 ≤ 0.030 ≤ 0.040 12.00-14.00 Nws ≤ 0.60       Nws yog stainless hlau nrog siab hardness, siab hnav tsis kam thiab corrosion resistant. Nws yog siv los ua kom muaj zog hardness thiab hnav tsis kam pwm nyob rau hauv corrosion kuj tej yam kev mob, xws li nozzles, li qub, valve rooj, thiab lwm yam.
4 cr13 0.36-0.45 dr hab ≤ 0.60 ≤ 0.80 ≤ 0.030 ≤ 0.040 12.00-14.00 Nws ≤ 0.60       Nws muaj zog dua thiab hnav tsis kam tshaj 3Cr13. Nws yog siv los ua cov khoom thiab pwm nrog cov kev xav tau siab dua 3Cr13.
B20 H 0.30-0.40 Nws 0.45-0.60 Nws ≥1.00 Nws ≤ 0.015 ≤ 0.030 ≥1.00 Nws         Raws li cov khoom tshiab uas hloov S45C thiab S55C, nws muaj kev ua haujlwm zoo dua, vuam thiab polishing zog dua S45C-S55C. Qhov kev faib ua haujlwm tau zoo dua qub raws lub dav hlau loj. Nws yog siv los ua S45C-S55C qhov chaw.
B30 H 0.10-0.20 Nws 0.20-0.45 dr hab ≥1.50 ≤ 0.005 ≤ 0.020 ≥1.50 ≥0.90 ≥0.20 ≥0.05 Nrog 0.60 Raws li cov khoom siv tshiab los hloov 718 thiab 2738, nws muab cov khoom piv rau 718. Nws yog siv los ua 718 thiab 2738 qhov chaw.