XQ114/6YB & XYQ Series Parts Classification

1

Parts for XQ114/6YB (XYQ3C Series Compatible)

Inconel 625 High-Temperature Resistant Alloy

1. High-temperature oxidative wear in continuous high-heat environments; 2. Creep deformation under long-term thermal stress

1. Maintain operating temperature within the material's rated range (≤1093℃) and ensure effective heat dissipation; 2. Conduct regular non-destructive testing to detect creep deformation in advance

2

XYQ3C.DT.2

Stainless Steel 316L + Engineering Plastic PEEK

1. Corrosion of stainless steel components by chloride-containing media; 2. Thermal aging of PEEK parts in high-temperature control cabinets

1. Regularly clean surface contaminants to avoid chloride ion accumulation; 2. Control cabinet temperature below 260℃ to prevent PEEK thermal degradation

3

XYQ3C.DT.1

Aluminum Alloy 6061-T6 + Nitrile Rubber (NBR)

1. Stress corrosion cracking of aluminum alloy in high-humidity environments; 2. Ozone aging of NBR components in industrial atmospheres

1. Apply anti-corrosion coating to aluminum surfaces and maintain operating environment humidity ≤75%; 2. Avoid exposure to ozone-rich areas and use ozone-resistant protective agents

4

XYQ3C.DT-3

Alloy Steel 42CrMo (Quenched & Tempered)

1. Abrasive wear from particulate matter in hydraulic/pneumatic systems; 2. Fatigue damage due to cyclic pressure loading

1. Install high-precision filters in fluid pipelines to remove abrasive particles; 2. Monitor system pressure to avoid exceeding the part's cyclic load limit

5

XYQ3C.HD-5

Stainless Steel 321 + Ceramic Inserts

1. High-temperature oxidation of stainless steel in thermal processing environments; 2. Ceramic insert chipping due to improper assembly torque

1. Apply high-temperature anti-oxidation coating and ensure adequate ventilation; 2. Use torque wrenches to apply specified assembly torque (avoid over-tightening)

6

XYQ3C.Z.5-1

Engineering Plastic POM + Carbon Steel 45#

1. Abrasive wear between POM and carbon steel due to insufficient lubrication; 2. Corrosion of carbon steel in wet operating conditions

1. Apply molybdenum disulfide lubricant to contact surfaces; 2. Apply anti-rust oil to carbon steel components and conduct regular inspections

7

XYQ3C.Z.5.1

Titanium Alloy TC4

1. Hydrogen embrittlement in hydrogen-rich environments; 2. Wear from contact with hard impurities

1. Avoid using in hydrogen-containing atmospheres; 2. Install impurity filters in the working medium and clean regularly

8

XYQ3C.Z.5-7

Glass Fiber Reinforced PA66

1. Hydrolytic aging in high-humidity and high-temperature environments; 2. Fracture due to excessive bending stress

1. Operate in environments with humidity ≤80% and temperature ≤120℃; 2. Avoid exceeding the material's bending stress limit during installation and operation

9

XYQ3C.Z.5-8

Stainless Steel 317L

1. Pitting corrosion caused by strong acidic media; 2. Wear from continuous linear movement

1. Use in non-acidic environments or apply acid-resistant coatings; 2. Lubricate linear movement components regularly with acid-resistant grease

10

XYQ3C.Z.5-9

Alloy Steel 20CrMnTi (Carburized)

1. Carburized layer wear due to frequent meshing; 2. Impact damage during emergency shutdowns

1. Inspect carburized layer thickness every 1500 operating hours; 2. Implement soft-stop procedures to reduce impact loads

11

XYQ3C.Z.5-10

Polyimide (PI) Composite

1. Oxidative aging in high-temperature oxygen-rich environments; 2. Brittle fracture due to sudden temperature changes

1. Operate below 300℃ and avoid oxygen-enriched atmospheres; 2. Implement gradual heating/cooling procedures to prevent thermal shock

12

XYQ3C.Z.5-12

Brass H62

1. Dezincification corrosion in alkaline environments; 2. Wear from rotational friction

1. Avoid using in environments with pH > 10; 2. Maintain proper lubrication and assembly clearance for rotating parts

13

XYQ3C.Z.5-2

Cast Steel ZG270-500

1. Sand hole expansion due to internal pressure; 2. Erosion wear from high-velocity fluid

1. Conduct pressure testing before installation to detect internal defects; 2. Optimize fluid flow rate to avoid exceeding erosion thresholds

14

XYQ3C.Z.5-6

Aluminum Alloy 5052

1. Wear from contact with abrasive dust; 2. Corrosion from industrial chemical vapors

1. Install dust covers and clean surfaces regularly; 2. Use in well-ventilated areas to reduce chemical vapor concentration

15

XYQ3C.Z.5-5

Engineering Plastic ABS

1. Thermal deformation in high-temperature environments; 2. Impact damage during handling and installation

1. Operate within the temperature range of -20℃ to 80℃; 2. Use shock-absorbing packaging during transportation and dedicated tools for installation

16

XYQ3C.Z.5-4

Stainless Steel 304

1. Intergranular corrosion due to improper welding; 2. Wear from particulate matter in the air

1. Use low-carbon welding materials and post-weld annealing if welding is required; 2. Install air filters in dusty environments

17

XYQ3C.Z.5-3

Alloy Steel 35CrMo

1. Creep deformation under high-temperature and long-term load; 2. Corrosion from humid air

1. Monitor operating temperature and load to avoid creep conditions; 2. Store and use in a dry environment and apply anti-rust coating

1

XYQ6B.DT-1

Stainless Steel 316Ti + PTFE

1. Corrosion of stainless steel by high-temperature chloride media; 2. Cold flow deformation of PTFE under long-term static load

1. Avoid using in high-temperature chloride environments; 2. Periodically release static load to allow PTFE recovery

2

XYQ1.8Z-24

Alloy Steel 40Cr

1. Abrasive wear from contaminated lubricants; 2. Fatigue cracking due to cyclic bending

1. Replace lubricants regularly and use high-precision oil filters; 2. Avoid operating beyond the material's fatigue limit for bending

3

XYQ6B.B-1

Brass H65

1. Wear from valve core movement; 2. Corrosion from ammonia-containing environments

1. Maintain clean hydraulic fluid to reduce valve core wear; 2. Avoid using in ammonia-rich atmospheres

4

XYQ6B.B-5

High-Carbon Chromium Bearing Steel GCr15

1. Fatigue spalling due to long-term high-speed rotation; 2. Corrosion caused by water ingress into the bearing chamber

1. Do not exceed the maximum rated rotational speed; 2. Check seal integrity regularly and replace damaged seals promptly

5

XYQ6B.Z-44

Alloy Steel 20Mn2

1. Wear caused by impact loading; 2. Corrosion in high-humidity workshops

1. Add buffer components to reduce impact; 2. Maintain workshop humidity ≤60% and apply anti-rust oil

6

XYQ6B.B-13

Engineering Plastic PA66 (Glass Fiber Reinforced)

1. Wear from contact with metal components; 2. Thermal aging in high-temperature environments

1. Apply wear-resistant coating to metal contact surfaces; 2. Operate below 120℃ to prevent thermal aging

7

XYQ6B.B-12

Aluminum Alloy 6063

1. Scratches and wear during installation; 2. Corrosion from rainwater (outdoor use)

1. Use protective tools during installation; 2. Apply anti-corrosion coating for outdoor applications

8

XYQ6B.B-6

Stainless Steel 304L

1. Intergranular corrosion in corrosive environments; 2. Wear from continuous movement

1. Use in neutral or alkaline environments; 2. Lubricate moving parts regularly with compatible grease

9

XYQ6B.B-25

Alloy Steel 35CrMnSiA

1. Wear caused by cyclic loading; 2. Corrosion from humid and dusty environments

1. Monitor load cycles and replace near fatigue life; 2. Clean surfaces regularly to remove dust and moisture

10

XYQ6B.B-26

Cast Iron HT250

1. Sliding friction wear; 2. Crack expansion due to internal stress

1. Apply wear-resistant lining to sliding surfaces; 2. Conduct stress relief annealing before installation

11

XYQ6B.B-3

Polyurethane (PU) Elastomer

1. UV aging (outdoor use); 2. Compression set from long-term static compression

1. Use UV protective covers for outdoor applications; 2. Periodically release compression load for material recovery

12

XYQ6B.B-4

Alloy Steel 15CrMo

1. High-temperature oxidation wear; 2. Deformation due to thermal expansion and contraction

1. Apply high-temperature anti-oxidation coating; 2. Ensure adequate thermal expansion space in the equipment

13

XYQ6B.Z-37

Aluminum Alloy 6061

1. Wear from assembly errors; 2. Corrosion from chemical vapors

1. Follow assembly manual strictly to avoid errors; 2. Use in well-ventilated areas

14

XYQ6B.Z-40

High-Carbon Steel T8

1. Wear due to insufficient lubrication; 2. Quenching crack propagation

1. Lubricate regularly with high-quality oil; 2. Inspect for quenching cracks using magnetic particle testing before installation

15

XYQ6B.Z-38

Brass H68

1. Wear from rotational motion; 2. Corrosion from acidic cleaning agents

1. Maintain proper rotational clearance; 2. Use neutral cleaning agents for maintenance

16

XYQ6B.Z-41

Alloy Steel 42CrMoA

1. Wear caused by gear meshing with improper backlash; 2. Fatigue damage from high-speed rotation

1. Adjust gear backlash to 0.15-0.25mm; 2. Monitor rotational speed and avoid overspeeding

17

XYQ6B.B-14(1)-(5)

Stainless Steel 316 + Engineering Plastic POM

1. Corrosion of stainless steel by saltwater; 2. Wear of POM parts from rough surfaces

1. Rinse with fresh water regularly for marine applications; 2. Ensure mating surfaces have roughness Ra ≤1.6μm

18

XYQ6B.B-9

Engineering Plastic PP

1. Thermal aging in high-temperature environments; 2. Impact damage during handling

1. Operate below 100℃; 2. Use shock-absorbing packaging during transportation

19

XYQ6B.Z-20

Stainless Steel 316L

1. Pitting corrosion from chloride ions; 2. Wear from mechanical vibration

1. Remove chloride-containing contaminants regularly; 2. Tighten fasteners to reduce vibration

20

XYQ6B.B-7

Alloy Steel 20Cr

1. Carburized layer wear from frequent engagement; 2. Corrosion in wet environments

1. Avoid excessive loads that damage the carburized layer; 2. Keep surfaces dry and apply anti-rust oil

21

XYQ6B.B-8

Aluminum Alloy 7075

1. Stress corrosion cracking; 2. Wear from contact with hard materials

1. Control operating stress below the stress corrosion threshold; 2. Use soft pads between hard contact surfaces

22

XYQ6B.B-10

Cast Steel ZG310-570

1. Fluid scouring wear; 2. Thermal stress cracking

1. Optimize fluid flow direction to reduce scouring; 2. Conduct thermal stress relief after high-temperature operation

23

XYQ6B.B-15C

Stainless Steel 347

1. High-temperature corrosion; 2. Wear from particulate matter

1. Use in high-temperature environments with proper protection; 2. Install particle filters in air supply systems

24

XYQ6B.B-22A

Polyether Ether Ketone (PEEK)

1. Thermal degradation above 260℃; 2. Wear from abrasive particles

1. Strictly control operating temperature below 260℃; 2. Install fine filters in working media

25

XYQ6B.B-27

Alloy Steel 35CrMnSi

1. Impact wear; 2. Corrosion from humid and dusty environments

1. Add buffer components to reduce impact; 2. Clean surfaces regularly

26

XYQ6B.B-16B

Titanium Alloy TC4

1. Wear from contact with abrasive impurities; 2. Corrosion in acidic environments

1. Install impurity filters; 2. Avoid using in environments with pH < 5

27

XYQ6B.B-18

Engineering Plastic ABS

1. Thermal deformation in high-temperature control cabinets; 2. Impact damage during maintenance

1. Control cabinet temperature below 80℃; 2. Use proper tools during maintenance to avoid impact

28

XYQ6B.B-11

Brass H59

1. Wear from galvanic corrosion with dissimilar metals; 2. Deformation from excessive temperature

1. Use insulating gaskets with dissimilar metals; 2. Operate below 100℃

29

XYQ6B.B-24（1）

Stainless Steel 317L

1. Corrosion from strong acids; 2. Wear from continuous movement

1. Use in non-acidic environments or apply acid-resistant coatings; 2. Lubricate moving parts regularly

30

XYQ6B.B-17C

Aluminum Alloy 6082

1. Wear from assembly and disassembly; 2. Corrosion from industrial gases

1. Use proper tools for assembly/disassembly; 2. Apply anti-corrosion coating and inspect regularly

31

XYQ6B.QD.1

Alloy Steel 40CrNiMoV

1. Wear from high-load operation; 2. Fatigue damage from cyclic loading

1. Do not exceed rated load; 2. Conduct regular non-destructive testing to detect fatigue cracks

32

XYQ6B.QD-2

Stainless Steel 304

1. Corrosion from humid air; 2. Wear from bearing rotation

1. Keep operating environment dry; 2. Lubricate bearings with high-quality grease every 400 operating hours

33

XYQ6B.QD-1

Engineering Plastic PA66

1. Hydrolytic aging in high-humidity environments; 2. Wear from contact with metal shafts

1. Operate in environments with humidity ≤75%; 2. Apply molybdenum disulfide coating to shaft contact surfaces

34

XYQ6B.QD-4

Alloy Steel 20CrMnTiH

1. Carburized layer wear from frequent engagement; 2. Impact damage during emergency stops

1. Inspect carburized layer thickness every 1200 operating hours; 2. Implement soft-stop procedures

35

XYQ6B.HD.1

Stainless Steel 321 + Ceramic Inserts

1. High-temperature oxidation of stainless steel; 2. Ceramic insert chipping from improper installation

1. Apply high-temperature anti-oxidation coating; 2. Use proper installation tools to avoid chipping

36

XYQ6B.HD-3

Alloy Steel 35CrMo

1. Wear from cyclic bending stress; 2. Corrosion from industrial corrosive gases

1. Avoid over-bending during installation; 2. Install gas filters in corrosive environments

37

XYQ6B.HD-1

Brass H62

1. Dezincification corrosion in alkaline media; 2. Wear from valve core movement

1. Avoid using in environments with pH > 10; 2. Maintain clean hydraulic fluid

38

XYQ6B.HD-4

Engineering Plastic POM

1. Abrasion from rough metal surfaces; 2. Thermal aging in high-temperature environments

1. Ensure mating metal surfaces have roughness Ra ≤1.6μm; 2. Operate within -40℃ to 100℃

1

XYQ3B.B-2

Stainless Steel 316L

1. Corrosion from chemical media in control systems; 2. Wear from piston rod movement

1. Use compatible hydraulic/pneumatic fluids; 2. Ensure piston rod surfaces are smooth and scratch-free

2

XYQ3B.B-20

Brass H62

1. Wear from valve core movement; 2. Corrosion from alkaline media

1. Maintain clean hydraulic fluid; 2. Avoid using in environments with pH > 9

3

XYQ3B.Z.1-18

Alloy Steel 20Mn2

1. Wear from impact loading; 2. Corrosion in high-humidity environments

1. Add buffer pads to reduce impact; 2. Keep operating environment dry (humidity ≤60%)

4

XYQ3B.B-9

Engineering Plastic PA66 (Glass Fiber Reinforced)

1. Wear from contact with metal components; 2. Thermal aging in high-temperature control cabinets

1. Apply wear-resistant coating to metal contact surfaces; 2. Control cabinet temperature below 120℃

5

XYQ3B.B-12

Aluminum Alloy 6061-T6

1. Stress corrosion cracking in high-humidity environments; 2. Wear from assembly errors

1. Apply anti-corrosion coating and maintain humidity ≤75%; 2. Follow assembly manual strictly

6

XYQ3B.Z-12

Stainless Steel 304

1. Pitting corrosion from chloride ions; 2. Wear from continuous linear movement

1. Clean surfaces regularly to remove chloride contaminants; 2. Lubricate linear movement components regularly