Hlau alloy
Thaum cov pa roj carbon hlau yooj yim alloyed nrog lwm cov ntsiab lus nrog lub hom phiaj los txhim kho cov khoom siv hluav taws xob ntawm cov hlau, qhov tshwm sim yog Alloy hlau.
Alloy steel yog ib pawg ntawm cov hlau uas muaj ib los yog ntau yam alloying ntsiab xws li Chromium (Cr), Nickel (Ni), Molybdenum (Mo), Vanadium (V), Silicon (Si) artificially ntxiv los ntawm carbon steel. Txhua lub ntsiab lus ntxiv qee yam khoom siv rau cov hlau, cov khoom xws li kev tiv thaiv corrosion, nce hardness, hnav tsis kam thiab lwm yam, yog li txhim kho kev ua haujlwm ntawm cov hlau. Raws li kev npaj siv cov hlau nws tuaj yeem muab faib ua cov qauv hlau alloy, cov cuab yeej hlau hlau, cov hlau tsis muaj cua sov thiab cov hom phiaj tshwj xeeb alloy steel.
Muaj ntau ntau hom hlau alloy, nrog rau lub hauv paus yog cov pa roj carbon steel uas tsuas yog Hlau (Fe) thiab Carbon (C), ntxiv ib qho ntxiv yuav ua rau nws cov kev ua tau zoo ntxiv, Carbon (C) txiav txim siab qhov hardness ntawm cov hlau, qhov siab dua cov ntsiab lus carbon ntxiv rau cov hlau nyuaj, tab sis qhov ntawd tseem yuav txo nws cov plasticity. Chromium (Cr) tsub kom cov hlau hnav tsis kam, corrosion kuj thiab kub tsis kam, ua rau lub ntsiab tseem ceeb ntawm cov hlau tsis muaj steel thiab tuag hlau. Nickel (Ni) txhim kho cov hlau toughness thiab corrosion kuj. Molybdenum (Mo) ua rau cov hlau ua kom muaj zog tiv thaiv kub thiab tiv thaiv thermal tawg, nrog rau kev txhim kho toughness thiab alleviates temper embrittlement. Manganese (Mn) Txhim kho steel zog thiab hardness, nws kuj txhim kho casting fluidity. Vanadium (V) Refines steel nplej, txhim kho hardness, hnav tsis kam thiab temper stability. Silicon (Si) yog ib qho muaj zog deoxidizer thiab txo qhov tsis xws luag hauv cov hlau, nws tseem yuav ua rau kom tawv thiab lub zog thaum siv cov nqi tsim nyog.
Cov qib tshwj xeeb thiab cov qib sib npaug thoob ntiaj teb sib npaug peb siv tau teev tseg hauv qab no, thov nco ntsoov tias cov tshuaj lom neeg tseem ceeb tau teev tseg raws li GB / T steel designations. Rau cov txheej txheem hlau alloy, peb tsuas yog muab ze rau -net- cov duab peev castings thiab MIM rau cov geometries nyuaj, ua raws li kev kho cua sov thiab CNC machining kom ua tau raws li qhov yuav tsum tau ua.
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Qib Suav |
AISI/UNS |
JIS |
Mechanical Properties |
Core Chemical Composition (Mass Fraction, %) |
Khoom yam ntxwv |
Daim ntawv thov kev lag luam |
Tej kev siv |
|
15 CrMo |
AISI 4115 / UNS G41150 |
STPA22/SCMV2 |
Tensile Strength (Rm): Ntau dua lossis sib npaug li 440 MPa Yield Strength (ReL): Ntau dua lossis sib npaug rau 295 MPa Elongation (A): Ntau dua lossis sib npaug li 17% Hardness (HB): Tsawg dua lossis sib npaug rau 179 (Annealed) / 140-190 (Normalized) |
C0.12~0.18 Sib 0.17 ~ 0.37 0.40-0.70 Nws P Tsawg dua lossis sib npaug rau 0.035 S Tsawg dua lossis sib npaug rau 0.035 Cr0.80 ~ 1.10 0.40 ~ 0.55 hli Ni Tsawg dua lossis sib npaug li 0.30 |
Tsawg carbon alloy qauv steel, zoo tshav kub tsis kam thiab zoo weldability, siab toughness |
Zog, Petrochemical & Tshuaj |
Boiler pipelines, heat exchangers, low -pressure steam turbine pipelines. |
|
20 CrMo |
AISI 4120 / UNS G41200 |
SCM420 |
Tensile Strength (Rm): Ntau dua lossis sib npaug li 885 MPa Yield Strength (ReL): Ntau dua lossis sib npaug rau 685 MPa Elongation (A): Ntau dua lossis sib npaug li 10% Hardness (HB): Tsawg dua lossis sib npaug rau 197 (Annealed) / 241-286 (Quenched & Tempered) / HRC 58-62 (Carburized & Hardened) |
C0.17~0.23 Sib 0.17 ~ 0.37 0.40-0.70 Nws P Tsawg dua lossis sib npaug rau 0.035 S Tsawg dua lossis sib npaug rau 0.035 Cr0.80 ~ 1.10 Nqe: 0.15 ~ 0.25 Ni Tsawg dua lossis sib npaug li 0.30 |
Tsawg carbon alloy qauv steel, sib npaug lub zog thiab toughness, zoo hardenability, zoo heev weldability |
Automotive & Tsheb thauj mus los General & Heavy Machinery |
Iav, shafts, piston pins, lub teeb -load kis tau tus mob ntawm engineering machinery |
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42CrMo |
AISI 4140 / UNS G41400 |
SCM440 |
Tensile Strength (Rm): Ntau dua lossis sib npaug rau 1080 MPa Yield Strength (ReL): Ntau dua lossis sib npaug rau 930 MPa Elongation (A): Ntau dua lossis sib npaug li 12% Hardness (HB): Tsawg dua lossis sib npaug rau 217 (Annealed) / 286-341 (Quenched & Tempered, kwv yees HRC 28-34) |
C0.38~0.45 Sib 0.17 ~ 0.37 0.60-0.90 Nws P Tsawg dua lossis sib npaug rau 0.035 S Tsawg dua lossis sib npaug rau 0.035 0.90 ~ 1.20 hli Nqe: 0.15 ~ 0.25 Ni Tsawg dua lossis sib npaug li 0.30 |
Nruab nrab carbon alloy structural steel, siab zog thiab hardness tom qab quenching thiab tempering, siab toughness, zoo heev hardenability |
Aerospace & Kws muaj txuj ci General & Heavy Machinery Zog, Petrochemical & Tshuaj |
Txuas pas nrig, tshuab cuab yeej spindles, hnyav-load ncej ntawm engineering machinery, bolts |
|
40 Cr |
AISI 5140 / UNS G51400 |
SCr440 |
Tensile Strength (Rm): Ntau dua lossis sib npaug li 980 MPa Yield Strength (ReL): Ntau dua lossis sib npaug rau 785 MPa Elongation (A): Ntau dua lossis sib npaug li 9% Hardness (HB): Tsawg dua lossis sib npaug rau 207 (Annealed) / 241-286 (Quenched & Tempered, kwv yees li HRC 24-28) |
C0.37~0.44 Sib 0.17 ~ 0.37 0.60-0.90 Nws P Tsawg dua lossis sib npaug rau 0.035 S Tsawg dua lossis sib npaug rau 0.035 Cr0.80 ~ 1.10 Ni Tsawg dua lossis sib npaug li 0.30 Mo Less tshaj los yog sib npaug rau 0.10 |
Nruab nrab carbon alloy structural steel, siab zog tom qab quenching thiab tempering, zoo hnav tsis kam, zoo heev processability thiab siab nqi kev ua tau zoo |
General & Heavy Machinery Kev tsim kho & Kho kom zoo nkauj |
Gears, shafts, tes tsho, fasteners, structural qhov chaw ntawm engineering machinery |
|
20 Cr |
AISI 5120 / UNS G51200 |
SCr420 |
Tensile Strength (Rm): Ntau dua lossis sib npaug rau 835 MPa Yield Strength (ReL): Ntau dua lossis sib npaug li 540 MPa Elongation (A): Ntau dua lossis sib npaug li 10% Hardness (HB): Tsawg dua lossis sib npaug rau 179 (Annealed) / HRC 56-60 (Carburized & Hardened) |
C0.17~0.23 Sib 0.17 ~ 0.37 0.60-0.90 Nws P Tsawg dua lossis sib npaug rau 0.035 S Tsawg dua lossis sib npaug rau 0.035 0.70-1.00 Nws Ni Tsawg dua lossis sib npaug li 0.30 Mo Less tshaj los yog sib npaug rau 0.10 |
Tsawg carbon alloy cov qauv hlau, siab hardness tom qab carburizing, zoo core toughness, zoo hardenability |
Automotive & Tsheb thauj mus los General & Heavy Machinery Kev tsim kho & Kho kom zoo nkauj |
Tsheb gearbox gears, shafts, precision kis tau tus mob qhov chaw |
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35CrMnSi |
AISI 4135H / UNS G41350 |
SCM435 |
Tensile Strength (Rm): Ntau dua lossis sib npaug rau 1620 MPa Yield Strength (ReL): Ntau dua lossis sib npaug rau 1275 MPa Elongation (A): Ntau dua lossis sib npaug li 10% Hardness (HB): Tsawg dua lossis sib npaug rau 241 (Annealed) / 388-444 (Quenched & Low-temp Tempered, approx HRC 40-45) |
C0.32~0.39 Si 0.90 ~ 1.20 Mn0.80 ~ 1.10 P Tsawg dua lossis sib npaug rau 0.035 S Tsawg dua lossis sib npaug rau 0.035 Cr1.10 ~ 1.40 Nws Ni Tsawg dua lossis sib npaug li 0.30 Mo Less tshaj los yog sib npaug rau 0.10 Cu Less dua los yog sib npaug rau 0.30 |
Nruab nrab carbon alloy structural steel, siab zog thiab hardness, zoo hnav tsis kam thiab qaug zog kuj |
Aerospace & Kws muaj txuj ci General & Heavy Machinery |
Machinery qhov chaw, siab -lub zog qhov chaw, hnyav load gears |
|
5CrNiMo |
AISI L6 / UNS T61206 |
SKD 4 |
Tensile Strength (Rm): Ntau dua lossis sib npaug li 1100 MPa Yield Strength (ReL): Ntau dua lossis sib npaug rau 850 MPa Elongation (A): Ntau dua lossis sib npaug li 10% Hardness (HB): Tsawg dua lossis sib npaug rau 241 (Annealed) / 341-388 (Quenched & Medium-temp Tempered, kwv yees HRC 34-40) |
C0.45~0.55 Sib 0.17 ~ 0.37 0.50-0.80 Nws P Tsawg dua lossis sib npaug rau 0.035 S Tsawg dua lossis sib npaug rau 0.035 Cr1.50 ~ 2.00 Nws 1.40 ~ 1.80 Nws 0.20-0.50 Nws Cu Less dua los yog sib npaug rau 0.30 |
Kub ua hauj lwm tuag steel, zoo zog nyob rau hauv high kub, zoo liab hardness |
Pwm & Hlau txoj kev |
Tuag-casting pwm, forging pwm |