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International Standards

Material Selection Guide

Complete international material equivalents chart. Compare material standards across China (GB), USA (ASTM/SAE/UNS), UK (BS), Germany (DIN/W.Nr.), Europe (EN), and Australia (AS).

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🔷 Aluminum 🔮 Magnesium 🟢 Stainless Steel 🟠 Copper & Brass 🔴 Carbon & Alloy Steel 🔵 Titanium
Lightweight & Versatile

Aluminum Alloys - International Equivalents

Complete cross-reference of aluminum grades (1xxx-7xxx series) across major international standards.

🇨🇳 China (GB) 🇺🇸 USA (AA/UNS) 🇬🇧 UK (BS) 🇩🇪 Germany (DIN/W.Nr.) 🇪🇺 Europe (EN) 🇦🇺 Australia (AS) Applications
1xxx Series - Pure Aluminum (≥99% Al) - Excellent Corrosion Resistance & Conductivity
L1 / 10501050 / A910501BAl99.5 / 3.0255EN AW-1050A1050Chemical equipment, reflectors
L2 / 10601060 / A910601AAl99.6 / 3.0205EN AW-10601060Electrical conductors, lighting
L3 / 11001100 / A911001CAl99.0Cu / 3.0205EN AW-11001100Food containers, heat exchangers
L4 / 12001200 / A912001050AAl99.0 / 3.0205EN AW-12001200General sheet metal, fin stock
2xxx Series - Al-Cu Alloys - High Strength Aircraft Grade
LY16 / 20112011 / A92011FC1AlCu6BiPb / 3.1655EN AW-20112011Screw machine products, fittings
LY11 / 20172017 / A92017L78AlCu4MgSi / 3.1325EN AW-20172017Rivets, general machining
LY12 / 20242024 / A92024DTD 5070AlCu4Mg1 / 3.1355EN AW-20242024Aircraft skins, fuselage, truck wheels
2A122024 / A920242L97/2L98AlCu4Mg1 / 3.1355EN AW-20242024Aerospace structural parts
LY6 / 20142014 / A92014L86AlCu4SiMg / 3.1255EN AW-20142014Heavy duty structures, forgings
3xxx Series - Al-Mn Alloys - Good Formability & Corrosion Resistance
LF21 / 30033003 / A93003N3AlMn1Cu / 3.0517EN AW-30033003Heat exchangers, cooking utensils
30043004 / A93004N31AlMn1Mg1 / 3.0526EN AW-30043004Beverage cans, roofing sheets
31053105 / A93105N32AlMn0.5Mg0.5 / 3.0505EN AW-31053105Building products, caps, closures
3A213003 / A93003N3AlMn1Cu / 3.0517EN AW-30033003Tank trucks, pressure vessels
4xxx Series - Al-Si Alloys - Low Melting Point, Wear Resistant
40324032 / A94032-AlSi12.5MgCuNi / 3.4365EN AW-40324032Pistons, engine components
40434043 / A94043NG21AlSi5 / 3.2245EN AW-40434043Welding wire, brazing filler
40474047 / A94047NG2AlSi12 / 3.2585EN AW-40474047Laser welding, semiconductor packaging
4A014043 / A94043NG21AlSi5 / 3.2245EN AW-40434043Building panels, welding electrodes
5xxx Series - Al-Mg Alloys - Marine Grade, Excellent Corrosion Resistance
LF2 / 50525052 / A95052N4AlMg2.5 / 3.3523EN AW-50525052Marine, fuel tanks, sheet metal
LF4 / 50835083 / A95083N8AlMg4.5Mn / 3.3547EN AW-50835083Ship hulls, pressure vessels, LNG tanks
50865086 / A95086N6AlMg4 / 3.3545EN AW-50865086Marine, armor plate, unfired vessels
57545754 / A95754N51AlMg3 / 3.3535EN AW-57545754Automotive body panels, welded structures
5A065456 / A95456N61AlMg5Mn / 3.3555EN AW-54565456Welded structures, pressure vessels
5A025052 / A95052N4AlMg2.5 / 3.3523EN AW-50525052Aircraft fuel tanks, pipework
6xxx Series - Al-Mg-Si Alloys - Heat Treatable, Good Formability
LD30 / 60616061 / A96061HE20AlMg1SiCu / 3.3211EN AW-60616061General purpose, structural, fixtures
LD31 / 60636063 / A96063HE9AlMgSi0.5 / 3.3206EN AW-60636063Architectural extrusions, window frames
60826082 / A96082HE30AlMgSi1 / 3.2315EN AW-60826082Structural applications, bridges, trusses
60056005 / A96005HE15AlMgSi0.7 / 3.3210EN AW-6005A6005Ladders, scaffolding, profiles
61016101 / A9610191EAlMgSi0.5 / 3.3207EN AW-61016101Electrical conductors, bus bars
7xxx Series - Al-Zn Alloys - Highest Strength Aerospace Grade
70507050 / A97050-AlZn6CuMgZr / 3.4144EN AW-70507050Aircraft bulkheads, fuselage frames
LC4 / 70757075 / A97075DTD 5124AlZnMgCu1.5 / 3.4365EN AW-70757075Aerospace, high-stress structural parts
7A047075 / A97075DTD 5124AlZnMgCu1.5 / 3.4365EN AW-70757075Aircraft beams, landing gear, military
7A097175 / A97175-AlZnMgCu2.5 / 3.4365EN AW-71757175Forged aerospace parts, die forgings
LC9 / 7A097075-T7351-AlZnMgCu1.5 / 3.4365EN AW-70757075High strength forgings, aerospace
Ultra Lightweight

Magnesium Alloys - International Equivalents

The lightest structural metal - 33% lighter than aluminum. Excellent for weight-critical applications.

🇨🇳 China (GB) 🇺🇸 USA (ASTM) 🇬🇧 UK (BS) 🇩🇪 Germany (DIN/W.Nr.) 🇪🇺 Europe (EN) 🇦🇺 Australia (AS) Applications
Wrought Magnesium Alloys (Sheet, Plate, Extrusions)
MB2 / AZ31BAZ31B / M11311MAG-S-111MgAl3Zn1 / 3.5312EN-MB10020AZ31BAircraft parts, laptops, cameras
MB3 / AZ61AAZ61A / M11610MAG-E-121MgAl6Zn1 / 3.5612EN-MB10030AZ61AExtrusions, forgings, high strength
MB5 / AZ80AAZ80A / M11800MAG-E-131MgAl8Zn / 3.5812EN-MB10050AZ80AHigh strength forgings, aerospace
MB1AZ31BMAG-S-111MgAl3Zn1 / 3.5312EN-MB10020AZ31BGeneral purpose wrought alloy
Cast Magnesium Alloys (Die Casting, Sand Casting)
ZM5 / AZ91DAZ91D / M11916MAG-C-111MgAl9Zn1 / 3.5912EN-MC21120AZ91DDie cast housings, automotive, power tools
AZ91CAZ91C / M11914MAG-C-110MgAl9Zn1 / 3.5912EN-MC21110AZ91CSand castings, general purpose
AM60BAM60B / M10600-MgAl6Mn / 3.5662EN-MC21230AM60BAutomotive, high ductility & energy absorption
AM50AAM50A / M10500-MgAl5Mn / 3.5560EN-MC21220AM50ASteering wheels, seat frames
Special Performance Magnesium Alloys
WE43WE43 / M18430-MgY4RE3ZrEN-MC60000WE43Aerospace, biomedical implants
ZK60AZK60A / M16600-MgZn6ZrEN-MB60010ZK60AHigh strength forgings, bicycle parts
Corrosion Resistant

Stainless Steel - International Equivalents

Complete reference for austenitic (300 series), ferritic, martensitic (400 series), and precipitation hardening grades.

🇨🇳 China (GB) 🇺🇸 USA (AISI/UNS) 🇬🇧 UK (BS) 🇩🇪 Germany (DIN/W.Nr.) 🇪🇺 Europe (EN) 🇦🇺 Australia (AS) Applications
Austenitic Stainless Steel (300 Series) - Non-Magnetic, Excellent Corrosion Resistance
Y1Cr18Ni9303 / S30300303S31X8CrNiS18-9 / 1.4305EN 1.4305303Free machining, screws, fittings
0Cr18Ni9 / 06Cr19Ni10304 / S30400304S31X5CrNi18-10 / 1.4301EN 1.4301304Food grade, kitchen, medical, general
00Cr19Ni10 / 022Cr19Ni10304L / S30403304S11X2CrNi19-11 / 1.4306EN 1.4306304LWelded structures, tanks, low-carbon
0Cr17Ni12Mo2 / 06Cr17Ni12Mo2316 / S31600316S31X5CrNiMo17-12-2 / 1.4401EN 1.4401316Marine, surgical implants, chemical
00Cr17Ni14Mo2 / 022Cr17Ni12Mo2316L / S31603316S11X2CrNiMo17-12-2 / 1.4404EN 1.4404316LMedical devices, welded chemical equipment
0Cr18Ni10Ti321 / S32100321S31X6CrNiTi18-10 / 1.4541EN 1.4541321Aircraft exhaust, high temp applications
0Cr25Ni20310S / S31008310S31X12CrNi25-20 / 1.4842EN 1.4842310SHeat treatment fixtures, furnace parts
Martensitic Stainless Steel (400 Series) - Hardenable, Magnetic
1Cr13 / 12Cr13410 / S41000410S21X12Cr13 / 1.4006EN 1.4006410Cutlery, valves, fasteners
2Cr13 / 20Cr13420 / S42000420S37X20Cr13 / 1.4021EN 1.4021420Surgical instruments, cutlery, knives
3Cr13 / 30Cr13420 / S42000420S45X30Cr13 / 1.4028EN 1.4028420High hardness blades, springs
9Cr18 / 95Cr18440A / S44002-X70CrMo15 / 1.4109EN 1.4109440ABearings, high hardness applications
9Cr18MoV440C / S44004-X105CrMo17 / 1.4125EN 1.4125440CBearings, knife blades, highest hardness
Ferritic Stainless Steel (400 Series) - Magnetic, Good Formability
1Cr17 / 10Cr17430 / S43000430S17X6Cr17 / 1.4016EN 1.4016430Automotive trim, appliances, kitchen sinks
0Cr17Ti / 10CrTi430Ti / S43036-X6CrTi17 / 1.4510EN 1.4510430TiWelded construction, exhaust systems
00Cr17Mo434 / S43400434S17X6CrMo17-1 / 1.4113EN 1.4113434Automotive trim, moldings
Precipitation Hardening Stainless Steel - Ultra High Strength
0Cr17Ni4Cu4Nb / 05Cr17Ni4Cu4Nb630 (17-4 PH) / S17400-X5CrNiCuNb16-4 / 1.4542EN 1.454217-4PHAerospace, valves, turbine blades, nuclear
0Cr15Ni5Cu4Nb15-5 PH / S15500-X5CrNiCu15-5 / 1.4545EN 1.454515-5PHAerospace valves, high strength fasteners
0Cr17Ni7Al17-7 PH / S17700-X7CrNiAl17-7 / 1.4568EN 1.456817-7PHSprings, diaphragms, clips
Duplex Stainless Steel - High Strength & Corrosion Resistance
00Cr22Ni5Mo3N2205 / S32205-X2CrNiMoN22-5-3 / 1.4462EN 1.44622205Chemical processing, offshore, desalination
00Cr25Ni7Mo4N2507 / S32750-X2CrNiMoN25-7-4 / 1.4410EN 1.44102507Super duplex, oil & gas, seawater
Excellent Conductivity

Copper & Brass - International Equivalents

Complete reference for pure copper, oxygen-free copper, brass, and specialty copper alloys with superior thermal and electrical conductivity.

🇨🇳 China (GB) 🇺🇸 USA (UNS/CDA) 🇬🇧 UK (BS) 🇩🇪 Germany (DIN/W.Nr.) 🇪🇺 Europe (EN) 🇦🇺 Australia (AS) Applications
Oxygen-Free Copper (OFC) - Highest Purity, Best Conductivity
TU0C10100 (OFE)C103Cu-OFE / 2.0040CW009AC10100Electronics, superconductors, vacuum tubes
TU1C10200 (OFHC)C101Cu-OF / 2.0040CW008AC10200Waveguides, lead frames, high-purity apps
TU2C10300C102Cu-OF / 2.0040CW008AC10300Electrical conductors, semiconductor equipment
C1020 (OFC)C10200 (OFHC)C101Cu-OF / 2.0040CW008AC10200Audio equipment, precision electronics, busbars
Electrolytic Tough Pitch Copper (ETP) - Standard Electrical Grade
T1C11000 (ETP)C101E-Cu58 / 2.0065CW004AC11000Electrical wire, bus bars, general electrical
T2C11000 (ETP)C101E-Cu57 / 2.0060CW004AC11000Electrical conductors, busbars, heat exchangers
T3C12000C104Cu-DLP / 2.0076CW023AC12000Plumbing, gaskets, general purpose
C1100C11000 (ETP)C101E-Cu58 / 2.0065CW004AC11000Heat sinks, electrical connectors, busbars
Free-Machining Copper - Enhanced Machinability
Te-Cu / HTeC14500 (Te-Cu)C109CuTeP / 2.1546CW118CC14500Free machining electrical, screw machine parts
HPb59-1C36000 (Free Cutting)CZ121CuZn39Pb3 / 2.0401CW614NC36000Best machinability, precision screw machine
Brass (Copper-Zinc Alloys) - Good Strength & Machinability
H96C21000 (Gilding)CZ101CuZn5 / 2.0220CW500LC21000Jewelry, decorative, coins
H90C22000 (Commercial)CZ102CuZn10 / 2.0230CW501LC22000Costume jewelry, ornamental
H80C24000 (Low Brass)CZ103CuZn20 / 2.0250CW503LC24000Musical instruments, flexible hose
H70C26000 (Cartridge)CZ108CuZn30 / 2.0265CW505LC26000Deep drawing, ammunition, springs
H68C26800CZ107CuZn33 / 2.0280CW506LC26800Radiator cores, lamp fixtures
H65C27000 (Yellow Brass)CZ106CuZn35 / 2.0300CW507LC27000Hardware, plumbing fittings
H62C27400 / C28000CZ106CuZn37 / 2.0321CW508LC27400Cartridge cases, hardware, automotive
H59C38500 (Arch Brass)CZ131CuZn40Pb2 / 2.0402CW617NC38500Valves, fittings, forged hardware
HPb63-3C36000CZ121CuZn36Pb3 / 2.0375CW603NC36000Free cutting, screw machine products
Bronze & Specialty Copper Alloys - High Strength & Special Properties
QSn6.5-0.1C51000 (Phosphor Bronze)PB102CuSn6 / 2.1020CW451KC51000Springs, connectors, bearings
QSn4-0.3C51100PB101CuSn4 / 2.1016CW450KC51100Electrical contacts, switches
QAl9-4C63000 (Al Bronze)CA104CuAl10Ni5Fe4 / 2.0966CW307GC63000Marine hardware, high strength, wear resistant
QBe2C17200 (BeCu)CB101CuBe2 / 2.1247CW101CC17200Springs, mold inserts, non-sparking tools
QSi3-1C65500 (Si Bronze)CS101CuSi3Mn1 / 2.1525CW116CC65500Hydraulic tubing, marine hardware
High Strength

Carbon & Alloy Steel - International Equivalents

Complete reference from structural steel to high-performance alloy and tool steels including Q235, 20#, 45#, 1215, 40Cr, 20Cr.

🇨🇳 China (GB) 🇺🇸 USA (AISI/SAE) 🇬🇧 UK (BS) 🇩🇪 Germany (DIN/W.Nr.) 🇪🇺 Europe (EN) 🇦🇺 Australia (AS) Applications
Structural Steel - General Construction
Q235A/B/C/DA36 / A283-CS235JRS235JR / 1.0038EN S235JR250Structural steel, bridges, general construction
Q275A572 Gr50S275JRS275JR / 1.0044EN S275JR300Structural, higher strength
Q345 (16Mn)A572 Gr50S355JRS355J2 / 1.0570EN S355J2350High strength structural, bridges
Low Carbon Steel - Case Hardening & Forming
08 / 08F1008040A04DC04 / 1.0338EN 1.03381008Deep drawing, cold forming
101010040A10C10 / 1.0301EN 1.03011010Cold forming, carburizing base
151015040A15C15 / 1.0401EN 1.04011015Case hardening, pins
20# (20号钢)1020 / AISI 1020050A20C22 / 1.0402EN 1.04021020Case hardening, carburizing, pins, gears
Medium Carbon Steel - Shafts & Gears
351035080A35C35 / 1.0501EN 1.05011035Moderate strength parts
401040080A40C40 / 1.0511EN 1.05111040Crankshafts, connecting rods
45# (45号钢)1045 / AISI 1045080M46C45 / 1.0503EN 1.05031045Shafts, axles, bolts, gears, connecting rods
501050060A52C50 / 1.0540EN 1.05401050Springs, tools, higher strength shafts
551055070M55C55 / 1.0535EN 1.05351055Springs, hand tools
Free-Cutting Steel - High Speed Machining
Y12 / 1215 (易切钢)1215 / 12L14230M079SMn28 / 1.0715EN 1.07151215High-speed automatic screw machine parts
Y151215220M079SMnPb28 / 1.0718EN 1.07181215Free machining, precision screws
Y40Mn1144-46S20 / 1.0727EN 1.07271144Higher strength free cutting
Chromium Alloy Steel - Improved Hardenability
20Cr (20铬)5120 / AISI 5120527M2020Cr4 / 1.7027EN 1.70275120Case-hardened gears, piston pins, cam shafts
40Cr (40铬)5140 / AISI 5140530M4041Cr4 / 1.7035EN 1.70355140Gears, shafts, spindles, high-strength fasteners
35CrMo4135708A3734CrMo4 / 1.7220EN 1.72204135High strength shafts, fasteners
Chrome-Molybdenum Alloy Steel - High Performance
42CrMo44140 / AISI 4140708M4042CrMo4 / 1.7225EN 1.72254140High strength shafts, gears, tooling
40CrNiMoA4340 / AISI 4340817M4034CrNiMo6 / 1.6582EN 1.65824340Aircraft landing gear, high fatigue resistance
20CrMnTi8620 / AISI 8620805M2020MnCr5 / 1.7147EN 1.71478620Gears, carburizing, high wear resistance
18CrNiMo7-64320 / 8822815M1718CrNiMo7-6 / 1.6587EN 1.6587-Heavy duty gears, wind turbines
Tool Steel - Cutting Tools & Dies
Cr12MoVD2 / AISI D2BD2X155CrVMo12-1 / 1.2379EN 1.2379D2Dies, punches, cold work tooling
Cr12Mo1V1A2 / AISI A2BA2X100CrMoV5 / 1.2363EN 1.2363A2Blanking dies, air hardening
9CrWMnO1 / AISI O1BO1100MnCrW4 / 1.2510EN 1.2510O1General tooling, oil hardening
4Cr5MoSiV1H13 / AISI H13BH13X40CrMoV5-1 / 1.2344EN 1.2344H13Die casting dies, hot work tooling
3Cr2MoP20 / AISI P20-40CrMnMo7 / 1.2311EN 1.2311P20Plastic injection molds
W18Cr4VT1 / AISI T1BT1HS18-0-1 / 1.3355EN 1.3355T1High speed cutting tools
W6Mo5Cr4V2M2 / AISI M2BM2HS6-5-2 / 1.3343EN 1.3343M2Drills, taps, general HSS tools
Aerospace Grade

Titanium Alloys - International Equivalents

Exceptional strength-to-weight ratio for aerospace, medical, and demanding applications.

🇨🇳 China (GB) 🇺🇸 USA (ASTM/UNS) 🇬🇧 UK (BS) 🇩🇪 Germany (DIN/W.Nr.) 🇪🇺 Europe (EN) 🇦🇺 Australia (AS) Applications
Commercially Pure (CP) Titanium - Excellent Corrosion Resistance
TA1Grade 1 / R50250-Ti99.5 / 3.7025EN 3.7025Grade 1High ductility, chemical processing
TA2Grade 2 / R50400TA10Ti99.2 / 3.7035EN 3.7035Grade 2General purpose, medical implants, marine
TA3Grade 3 / R50550TA11Ti99.0 / 3.7055EN 3.7055Grade 3Moderate strength, aerospace frames
TA4Grade 4 / R50700-Ti99.0 / 3.7065EN 3.7065Grade 4Highest pure Ti strength, airframes
Alpha-Beta Titanium Alloys - High Strength Aerospace
TC4 / Ti-6Al-4VGrade 5 / R56400TA42TiAl6V4 / 3.7165EN 3.7165Grade 5Aerospace, most common Ti alloy
TC4 ELIGrade 23 / R56401-TiAl6V4 ELI / 3.7165EN 3.7165Grade 23Medical implants, surgical, biocompatible
TC11Ti-6Al-2Sn-4Zr-2Mo-TiAl6Sn2Zr4Mo2 / 3.7145--High temp aerospace, jet engines
Beta Titanium Alloys - Highest Strength
TB6Ti-10V-2Fe-3Al----Aircraft landing gear, high strength
Ti-15-3Ti-15V-3Cr-3Al-3Sn----Springs, fasteners, aerospace
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