Surface Treatment Process Price Reference
- Anodizing Series
- Electroplating Series
- Blackening / Oxidation Series
- Coating Series
- Surface Hardening Series
- PVD/CVD Coating Series
- Pre-treatment & Auxiliary
- Special Surface Treatments
- Heat Treatment Process
| Process Type | Characteristics | Applications | Reference Price |
| Clear Anodizing (Silver) | Natural silver, 5-25μm thickness, corrosion resistant | Gen. Al parts, electronics | 15-30 RMB/㎡ or 3-6 RMB/KG |
| Black Anodizing | Matte/gloss black, beautiful & wear-resistant | Consumer electronics, housings | 20-40 RMB/㎡ or 4-8 RMB/KG |
| Color Anodizing | Red, blue, gold, and other colors | Decorative parts, signage | 25-50 RMB/㎡ or 5-10 RMB/KG |
| Hard Anodizing (Type III) | 25-100μm thickness, 400-500HV hardness | Pistons, cylinders, wear parts | 50-120 RMB/㎡ or 10-25 RMB/KG |
| Sandblasting + Anodizing | Blasted before anodizing, matte finish | High-end exterior parts | 30-60 RMB/㎡ |
| Brushing + Anodizing | Mechanical brushing before anodizing, metallic texture | Appliance panels, trims | 35-70 RMB/㎡ |
| Mirror Polish + Anodizing | High gloss surface, high reflectivity | Optics, high-end decoration | 80-150 RMB/㎡ |
Price Factors:
- Film thickness: 15-25% surcharge for every additional 5μm.
- Color complexity: Special colors (gold, red) are 20-40% more expensive than black.
- Part complexity: Irregular/deep-hole parts surcharge 30-50%.
Zinc Plating (Galvanizing)
| Process Type | Characteristics | Salt Spray Test | Reference Price |
| White Zinc (Blue-White) | Silver-white, trivalent chromium passivation | 24-48 hours | 2-4 RMB/KG |
| Color Zinc (Iridescent) | Colored passivation, better corrosion resistance | 48-72 hours | 2.5-5 RMB/KG |
| Black Zinc | Black appearance, good decorative property | 48-96 hours | 3-6 RMB/KG |
| Zinc-Nickel Alloy | High corrosion resistance, 8-15% Nickel | 500-1000 hours | 8-15 RMB/KG |
| Zinc-Iron Alloy | Eco-friendly, excellent corrosion resistance | 240-500 hours | 5-10 RMB/KG |
| Hot-Dip Galvanizing | Thick coating (50-100μm) | >20 years outdoors | 800-1500 RMB/Ton |
Nickel Plating
| Process Type | Characteristics | Applications | Reference Price |
| Bright Nickel | Mirror gloss, highly decorative | Hardware, sanitary ware | 8-15 RMB/KG |
| Matte/Sand Nickel | Matte finish, delicate touch | Phone cases, electronic shells | 10-18 RMB/KG |
| Electroless Nickel | No electricity used, uniform, high hardness | Precision/complex parts | 15-30 RMB/KG |
| Nickel + Chrome Plating | Nickel base + Chrome top, classic combo | Auto parts | 12-25 RMB/KG |
Chrome Plating
| Process Type | Characteristics | Coating Thickness | Reference Price |
| Decorative Chrome | Mirror bright, aesthetically pleasing | 0.2-0.3μm | 10-20 RMB/KG |
| Hard Chrome | 800-1000HV hardness, highly wear-resistant | 5-50μm | 30-80 RMB/KG |
| Black Chrome | Black decor, good light-absorbing properties | 0.3-0.5μm | 15-30 RMB/KG |
| Micro-Cracked Chrome | Special structure, superior corrosion resistance | 0.4-0.8μm | 20-40 RMB/KG |
Other Electroplating
| Process | Characteristics | Reference Price |
| Copper Plating | Good conductivity, used as undercoat | 5-10 RMB/KG |
| Tin Plating | Good solderability, food grade | 6-12 RMB/KG |
| Gold Plating | Conductivity, anti-oxidation, decorative | Gold price + processing fee 100-300 RMB/㎡ |
| Silver Plating | Best conductivity, antibacterial | Silver price + processing fee 80-200 RMB/㎡ |
| Process Type | Applicable Materials | Characteristics | Reference Price |
| Room Temp Blackening | Carbon steel, Cast iron | Room temp operation, thin film | 1.5-3 RMB/KG |
| High Temp Blackening | Carbon steel, Alloy steel | Firm film, better corrosion resistance | 2-4 RMB/KG |
| Stainless Steel Blackening | Stainless steel series | Black decor, does not peel | 3-6 RMB/KG |
| QPQ Treatment | Carbon steel, Alloy steel | Nitriding+oxidation, high wear/corrosion resistance | 8-20 RMB/KG |
| Phosphating Blackening | Carbon steel | Pre-coating treatment, rust prevention | 2-4 RMB/KG |
Powder Coating
| Type | Characteristics | Thickness | Reference Price |
| Standard Powder | Epoxy/Polyester, rich colors | 60-80μm | 15-30 RMB/㎡ |
| Outdoor Weather-Resistant | Fluorocarbon modified, gloss/color retention | 60-100μm | 25-50 RMB/㎡ |
| Metallic Powder | Metallic sparkling texture | 60-80μm | 30-60 RMB/㎡ |
| Texture/Sand Powder | Special touch, conceals flaws | 80-120μm | 25-45 RMB/㎡ |
Painting / Liquid Coating
| Type | Characteristics | Reference Price |
| Standard Painting | Nitrocellulose/Alkyd paints | 20-40 RMB/㎡ |
| Polyurethane Paint | High gloss, wear-resistant | 30-60 RMB/㎡ |
| Epoxy Paint | Excellent anti-corrosion | 25-50 RMB/㎡ |
| Fluorocarbon Paint | Ultra-weather resistant (>20 years) | 60-120 RMB/㎡ |
| High-Temp Paint | Resists 200-800℃ | 40-80 RMB/㎡ |
E-Coating (Electrophoresis)
| Type | Characteristics | Reference Price |
| Cathodic E-Coating (Black) | Auto standard, high corrosion resistance | 20-40 RMB/㎡ |
| Anodic E-Coating | Dedicated for Aluminum, clear/colored | 15-35 RMB/㎡ |
| Process | Principle | Depth | Surface Hardness | Reference Price |
| Carburizing & Quenching | Carbon diffusion + quenching | 0.5-2.0mm | 58-62HRC | 3-8 RMB/KG |
| Nitriding | Nitrogen diffuses to form nitrides | 0.1-0.6mm | 600-1200HV | 5-15 RMB/KG |
| Carbonitriding | Simultaneous C & N diffusion | 0.2-0.8mm | 58-64HRC | 6-18 RMB/KG |
| Induction Quenching | Rapid local heating and quenching | 1-5mm | 55-62HRC | 50-200 RMB/pc |
| Laser Quenching | Laser beam surface hardening | 0.2-1.0mm | 60-65HRC | 100-300 RMB/㎡ |
| Plasma Nitriding | Ion bombardment accelerates nitriding | 0.1-0.5mm | 700-1200HV | 10-30 RMB/KG |
| Coating Type | Color/Characteristics | Thickness | Applications | Reference Price |
| TiN | Gold, high hardness | 1-4μm | Cutting tools, decorative | 50-150 RMB/pc |
| TiAlN | Purplish-black, high-temp resistant | 2-5μm | High-speed cutting tools | 80-200 RMB/pc |
| CrN | Silver-gray, wear-resistant | 2-6μm | Piston rings, molds | 60-180 RMB/pc |
| DLC | Black, ultra-hard, low friction | 1-3μm | Precision parts, auto | 100-300 RMB/pc |
| ZrN | Bright gold, decorative | 1-3μm | Sanitary ware, jewelry | 80-200 RMB/pc |
| Process | Purpose | Reference Price |
| Sandblasting (Glass Bead) | Cleaning, matte finish, improves adhesion | 10-30 RMB/㎡ |
| Sandblasting (Quartz/Steel) | Rust removal, roughening | 15-40 RMB/㎡ |
| Shot Blasting | Hardening, scale removal | 20-50 RMB/㎡ |
| Vibratory / Barrel Finishing | Deburring, chamfering, polishing | 2-8 RMB/KG |
| Chemical Polishing | Bright finish (Aluminum/Stainless steel) | 15-40 RMB/㎡ |
| Electropolishing | Mirror finish (Stainless steel only) | 30-80 RMB/㎡ |
| Passivation | Improves corrosion resistance (Stainless steel) | 5-15 RMB/KG |
| Phosphating | Pre-coating treatment, rust prevention | 3-8 RMB/KG |
| Dacromet / Zinc-Al Flake | High corrosion resistance, no hydrogen embrittlement | 15-40 RMB/KG |
| Process | Characteristics | Applications | Reference Price |
| Thermal Spraying | Ceramic/metal coatings, wear/heat resistant | Wear & heat resistance | 100-500 RMB/㎡ |
| Chem. Conversion Coating | Al surface protection, conductive (Alodine) | Aerospace, electronics | 20-50 RMB/㎡ |
| Micro-Arc Oxidation (MAO) | Ceramic layer, ultra-hard | Al, Mg, Ti alloys | 50-150 RMB/㎡ |
| Laser Cladding | Surface alloying, repair | Molds, shafts | 200-800 RMB/㎡ |
| Ion Implantation | Surface modification, ultra-precise | Semiconductors, medical | Negotiated |
Pricing Explanations & Notes:
- By Weight (RMB/KG):Suitable for small parts, batch parts, and electroplating categories.
- By Area (RMB/㎡):Suitable for large parts, plates, and coating categories.
- By Piece (RMB/pc):Suitable for irregularly shaped parts and specialized process parts.
Conventional Heat Treatment
| Process Name | Description | Applicable Materials | Reference Price |
| Annealing | Heated above critical temp, held, then cooled slowly to relieve stress and soften. | Carbon steel, alloy steel, copper alloy | 2-5 RMB/KG |
| Normalizing | Heated above critical temp, air-cooled to refine grains and improve toughness. | Carbon steel, low-alloy steel | 2-4 RMB/KG |
| Quenching | Heated above critical temp, rapidly cooled (water/oil/polymer) for martensite. | Carbon steel, alloy steel, tool steel | 3-8 RMB/KG |
| Tempering | Heated below critical temp post-quenching, then cooled to reduce brittleness/adjust hardness. | Quenched steels | 2-5 RMB/KG |
| Quenching & Tempering (Q&T) | Quenching + high-temperature tempering for comprehensive mechanical properties. | Medium carbon steel, alloy structural steel | 5-12 RMB/KG |
| Aging | Heated to a lower temp and held for a long time to stabilize structure/relieve stress. | Al alloy, stainless steel, Be-Cu | 3-8 RMB/KG |
| Solution Treatment | Heated to high temp to dissolve alloy elements, rapidly cooled for supersaturated solid solution. | Stainless steel, Al alloy, superalloy | 5-15 RMB/KG |
| Cryogenic Treatment | Cooled to -70℃~-196℃ to eliminate retained austenite, improve hardness/stability. | Tool steel, bearing steel, gauge steel | 8-20 RMB/KG |
Chemical Heat Treatment
| Process Name | Description | Applicable Materials | Reference Price |
| Carburizing | Heated in carbon-rich media; carbon diffuses into surface for hardness/wear resistance. | Low carbon steel, low carbon alloy steel | 8-20 RMB/KG |
| Nitriding (Gas) | Heated in ammonia gas; nitrogen forms a nitride layer for high hardness/wear/corrosion resistance. | Alloy steel, stainless steel, Ti alloy | 10-30 RMB/KG |
| Plasma/Ion Nitriding | Nitriding in plasma; fast speed, low temp, minimal distortion. | Alloy steel, stainless steel, Ti alloy | 15-40 RMB/KG |
| Carbonitriding | Simultaneous diffusion of carbon and nitrogen; improves surface hardness and fatigue strength. | Carbon steel, alloy steel | 10-25 RMB/KG |
| Nitrocarburizing (Soft Nitriding) | Nitrogen as primary, carbon secondary; improves wear resistance and anti-galling. | Carbon steel, alloy steel, cast iron | 8-20 RMB/KG |
| QPQ Treatment | Nitrocarburizing + oxidation in salt bath; high wear/corrosion resistance, micro-deformation. | Carbon steel, alloy steel, stainless steel | 15-35 RMB/KG |
| Boronizing | Heated in boron-containing media to form a boride layer; ultra-high hardness, wear-resistant. | Carbon steel, alloy steel, cast iron | 20-50 RMB/KG |
| Metallizing (Cr/V/Al) | Diffusing metals like Cr, V, or Al into the surface for corrosion, wear, or high-temp performance. | Parts with special requirements | 30-80 RMB/KG |
Surface Heat Treatment
| Process Name | Description | Applicable Materials | Reference Price |
| Induction Quenching | Rapid surface heating via induction, water quenched for local hardening. | Medium carbon steel, alloy steel | 50-300 RMB/pc |
| Flame Quenching | Heated via oxy-acetylene flame, water quenched for local hardening. | Large parts, local hardening | 100-400 RMB/㎡ |
| Laser Quenching | Laser beam scanning for localized heating, self-cooled or water cooled; high precision. | Precision parts, complex shapes | 200-600 RMB/㎡ |
| Electron Beam Quenching | Surface heating via electron beam; high energy density, precise control. | Precision parts, special materials | 300-800 RMB/㎡ |
| Contact Resistance Quenching | Heating via contact resistance, suitable for long parts like guide rails. | Guide rails, cams, etc. | 50-150 RMB/meter |
Vacuum & Special Heat Treatment
| Process Name | Description | Applicable Materials | Reference Price |
| Vacuum Quenching | Heated and quenched in a vacuum furnace; no oxidation, no decarburization, good surface. | Tool steel, mold steel, stainless steel | 15-40 RMB/KG |
| Vacuum Tempering | Tempering in a vacuum furnace to maintain surface quality. | Vacuum-quenched parts | 8-20 RMB/KG |
| Vacuum Annealing | Annealing in a vacuum furnace; no oxidation, bright surface. | Stainless steel, Ti alloy, Cu alloy | 10-25 RMB/KG |
| Vacuum Carburizing | Low-pressure carburizing in a vacuum environment; fast, high quality, eco-friendly. | Gears, shafts, etc. | 20-50 RMB/KG |
| Vacuum Nitriding | Nitriding in a vacuum furnace; precise control, stable quality. | Precision parts | 25-60 RMB/KG |
| Controlled Atmosphere Heat Treatment | Heat treatment in a controlled atmosphere to prevent oxidation and decarburization. | Various steels | 8-20 RMB/KG |
| Fluidized Bed Heat Treatment | Heating/cooling in a fluidized bed; uniform temp, high efficiency. | Small parts, batch production | 10-25 RMB/KG |
Aluminum Alloy Heat Treatment
| Process Name | Description | Applicable Materials | Reference Price |
| T4 Treatment | Solution treatment + natural aging; medium strength, good plasticity. | 2XXX, 6XXX series Al alloys | 5-12 RMB/KG |
| T6 Treatment | Solution treatment + artificial aging; high strength. | 6XXX, 7XXX series Al alloys | 6-15 RMB/KG |
| T651 Treatment | Solution treatment + stretching + artificial aging; high strength, low residual stress. | Thick plates, precision parts | 8-20 RMB/KG |
| T7 Treatment | Solution treatment + over-aging; excellent stress corrosion resistance. | 7XXX series Al alloys | 6-15 RMB/KG |
| Annealing (O Temper) | Full annealing; soft state, easy to machine. | Various aluminum alloys | 4-10 RMB/KG |
Stainless Steel Heat Treatment
| Process Name | Description | Applicable Materials | Reference Price |
| Solution Treatment | Water cooled at 1050℃; eliminates carbide precipitation, restores corrosion resistance. | Austenitic stainless steel | 8-20 RMB/KG |
| Stabilization Treatment | Heated to 850-900℃; carbon binds with Ti/Nb to prevent intergranular corrosion. | 321, 347 etc. | 6-15 RMB/KG |
| Sensitization | Deliberate carbide precipitation; used for intergranular corrosion tests. | Austenitic stainless steel | 5-12 RMB/KG |
| Precipitation Hardening | Aging to precipitate intermetallic compounds for strengthening (H900/H1025/H1150). | 17-4PH, 15-5PH, etc. | 15-40 RMB/KG |
| Stress Relief Annealing | Low-temperature annealing to relieve machining stress. | Various stainless steels | 4-10 RMB/KG |
Factors Affecting Heat Treatment Prices
| Factor | Impact Level | Description |
| Batch Size | Large batches can reduce cost by 30-50% | High ratio of setup fees for small batches |
| Part Size & Weight | Surcharges for extra-large or extra-small parts | Affected by furnace loading and fixture requirements |
| Precision Requirements | Surcharges of 20-50% for high precision | Distortion control, protective atmosphere needs |
| Testing Requirements | Increases testing fees | Hardness, metallography, NDT, etc. |
| Delivery Time | Expedited orders surcharge of 20-100% | Requires queue-jumping or continuous operation |
| Material Specificity | Surcharge for special materials | Titanium alloys, superalloys, etc. |
