Inserts
Coating Solutions for Stainless Steel Turning
Introduction to Coatings for Stainless Steel Turning
Coating Grade: HMT130, HLM300
Application: HLM300 universal coating is particularly suitable for processing ordinary steel (32~48HRC), stainless steel and cast iron and other materials;
HMT130 is suitable for stainless steel such as 304, 316L;
Coating Features: HLM300 universal coating simple elements, combined with gradient cycle, achieves a certain degree of wear resistance and toughness
HMT130 has many nano-interfaces and the surface layers of two lubricating elements delay the occurrence of adhesive wear.
Metal Cutting – CNC Inserts
HLM300 Coating Principle:
Huasheng's independently developed new composite machine HA800 uses arc ion plating technology to adjust the coating structure and achieve bias voltage gradient. The prepared coating has a uniform and dense microstructure and has excellent mechanical and tribological properties.
Application:
Ordinary steel (32~48HRC), stainless steel and cast iron

Blade model: WNMG080408
Processed material: SUS316L
Test condition: Continuous
The cutting speed Vc=200m/min
Feed Fn=0.2mm/r per revolution
The cutting depth ap=1.5mm
Cooling method: Emulsion
Measurement result: VB=300μm, calibrated for 1 work time
The Huasheng HLM300 coated tool chipped after 25 minutes of processing.
The current HLM-coated tools of our competitors can achieve chipping within 21 minutes.
The tool life has been increased by 19%.
Data source: Huasheng Cutting Laboratory

21min-HuaSheng®HLM300

21min-Competitor
Coating Properties:
| Coating Composition | AlTi-base |
| Color | Black |
| Thickness(μm) | 2.5±0.5 |
| Vickers hardness at room temperature(GPa) | 34±3 |
| Residual compressive stress(GPa) | -4.0±1 |
| Coating Temperature(℃) | < 500 |
| Maximum operating temperature(℃) | 1100 |
Metal Cutting – CNC Inserts
HMT130 Coating Principle :
Huasheng's independently developed new composite machine HA800 uses arc ion plating technology to adjust the coating structure and achieve bias voltage gradient. The prepared coating has a uniform and dense microstructure and has excellent mechanical and tribological properties.
Application:
304, 316L and other stainless steel

Tool model: WNMG080408-OMM
Processed material: 316L stainless steel (150-170HB)
Test conditions
Cutting speed Vc: 200m/min
Feed per revolution fn: 0.2mm/r
Cutting depth Ap: 1.5mm
Cooling method: Emulsion
Test standard
Failure standard: VB≥300μm or chipping depends on the processing time.
The HMT130 can be processed for 24 minutes, while the process of competitors takes 15 minutes.
The cutting life of HuaShengHMT130 is 60% longer than that of its competitors
Data source: Huasheng Cutting Laboratory

HHuaSheng® HMT130 Wear diagram: 15 minutes

Competitor wear: 15 minutes
Coating Properties:
| Coating Composition | AlTiN-Based |
| Color | Purple |
| Thickness(μm) | 2.7±0.3 |
| Vickers hardness at room temperature(GPa) | 35.0±3.0 |
| Residual compressive stress(GPa) | -4.5±1.0 |
| Coating Temperature(℃) | < 600 |
| Maximum operating temperature(℃) | 1100° |
Inserts (Processing Method) Coating Solutions
Insert (Processing) Features


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1. Stainless steel has high plasticity, severe cutting deformation, and high mechanical load during cutting.
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2. Serious work hardening phenomenon.
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3. The temperature load during cutting is high.
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4. Develops sticking, welding and other tool sticking phenomena, affecting the surface roughness of the processed parts
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Red Hardness
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Wear Resistance
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High Adhesion
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Lubricity
G4-S3 Coating Parameters
Inserts (Processing) Features
Application:
Process Material:
Titanium alloy, stainless steel, HRC48-65 hardened steel
Cooling method: water cooling/air cooling
| Coating Composition | AlTiXN |
| Color | Bronze |
| Thickness(μm) | 1.5±0.5 |
| Vickers hardness at room temperature(GPa) | 40±2 |
| Residual compressive stress(GPa) | -5±1 |
| Coating Temperature(℃) | < 550 |
| Maximum operating temperature(℃) | 1200 |
| Technical Features | Coating Performance |
| New integrated cathode coating technology | While having a high ionization rate, the coating is dense and droplet-free. High hardness, low stress, and impact resistance |
| Brand new AlTiN/TiXN composite structure design | While maintaining high hardness, further enhancing impact resistance and crack growth resistance |
| Refined X element grains | Low friction coefficient, good anti-adhesion performance |
Coating Solution – CNC Turning
Application of G4-S in 304 Stainless Steel Turning

Tool Specification: DCGT11T302FR-U
Process Material: 304(~30HRC)
Test conditions: Turning finishing
Cutting Speed Vc = 100m/min
Feed Speed Fz = 0.05mm/z
Cutting Depth ap = 1.0mm
Cooling Method: Oil cooling
Test Results:
Off-machine standard: product roughness is not higher than 1um
Result Analysis: G4-S1 coating has a 47% longer tool life than the competitor's PR930. Less wear on insert’s flank
Source: Huasheng Machining Laboratory

G4-S1:1827m(Ra=0.681μm)

PR9:1827m(Ra=1.281μm)
HuangSheng®HMT130(316L/304 Stainless Steel Processing)
Application
Stainless Steel Turning
Suitable for semi-finishing and rough machining
Mainly applicable to 316L stainless steel
| Coating Composition | AlTiN-Based |
| Color | Purple |
| Thickness(μm) | 2.7±0.3 |
| Vickers hardness at room temperature(GPa) | 35.0±3.0 |
| Residual compressive stress(GPa) | -4.5±1.0 |
| Coating Temperature(℃) | < 600 |
| Maximum operating temperature(℃) | 1100° |
| Coating Structure | Coating Performance |
| Brand new AlTiXN nanocomposite multilayer structure design | Effectively relieve stress concentration on the coating surface and resist crack propagation |
| Maintaining high ionization rate of AlTiN-base coating deposited by AIP technology | Excellent high temperature stability and excellent antioxidant properties |
| Introduction of unique proportion elements and special element X | Improve the overall performance of the coating and reduce the friction coefficient |
HuangSheng®HMT130 Turning Performance
Case Study 1:Turning Process on 316L Stainless Steel

HuaSheng®HMT130 Wear:15min

Competitor Wear:15min
Tool Specification:
WNMG080408-OMM
Process Material:
316L Stainless Steel(150-170HB)
Test Conditions:
Cutting Speed Vc:200m/min
Feed Speed fn:0.2mm/r
Cutting Depth Ap:1.5mm
Cooling Method:Emulsion
Test Results:
Failure standard: VB ≥ 300μm or chipping depends on processing time
HMT130 lasted 24 minutes, while competitors only lasted 15 minutes.
HuaSheng®HMT130 has 60% increment in lifespan against competitors。
Source:
Huasheng Machining Laboratory

HuaSheng® HLM300
Inserts, Hardened Solid Milling Tool
General Machining
| Coating Composition | AlTI-base |
| Color | Black/Red |
| Thickness(μm) | 2.5±0.3 |
| Vickers hardness at room temperature(GPa) | 32±3 |
| Residual compressive stress(GPa) | -3.5±1 |
| Coating Temperature(℃) | < 500 |
| Maximum operating temperature(℃) | 1000 |
| Coating Structure | Coating Performance |
| The ultimate combination of AlTiN | Improve the bonding strength between substrate and layers |
| Ingredient Control | Excellent comprehensive performance |
| Simple Architecture Design | Wide range of applications |
HuaSheng® HLM300
Case Study 1: Turning Process on 316L Stainless Steel

21min-HuaSheng® HLM300

21min-Competitor
Tool Specification:
WNMG080408
Process Material:
SUS316L
Test Conditions:Continuous
Cutting Speed Vc =200m/min
Feed Speed Fn =0.2mm/r
Cutting Depth ap = 1.5mm
Cooling Method:Emulsion
Test Results:VB=300μm,Machining Time Comparison
Huasheng’s HLM300 coated tool lasted 25 minutes before breaking
Competitor’s coated tool only lasted 21 minutes before breaking
Tool life increase of 19% on Huasheng’s Coating
Source:Huasheng Machining Laboratory

Coating Solutions for Milling Tools (Machining Methods)
Milling Tool (Machining) Characteristics:

Flank Wear
>> Intermittent processing, large impact during machining
>> Low carbon steel, difficult chip breaking and easy to produce built-up edge
>> Alloy steel, mainly abrasive wear, flank wear
>> High hardness material requirements, red hardness, heat resistance
>> Heavy-duty milling, large cutting depth and width, high feed
| Hardness and toughness balance | Coating Performance |
| Smooth surface | |
| High wear resistance | |
| High thermal stability |
Coating Solutions for Milling Tools (Machining Methods)
Coating Applications for Milling Tools
Coating Grades: U2、HPM120、 HE250
Applications:U2 universal coating is particularly suitable for processing ordinary steel (32~48HRC), stainless steel and cast iron and other materials
HPM120 is suitable for low hardness ordinary steel (20HRC-45HRC)
HE250 is suitable for HRC45-62 hardened steel
Coating Features:U2 universal coating has a smooth surface without droplets, excellent thermal stability and extremely high wear resistance
HPM120 coating has fewer droplets on the surface, dense coating structure, moderate thickness and hardness
HE250 has good impact resistance and crack propagation resistance, high density and good oxidation resistance
Metal Machining – CNC Insert
U2 Coating Principle:
Huasheng's independently developed new integrated cathode equipment G4 adopts Super HiPiMS technology, with a smooth surface without droplets, a low friction coefficient, and a coating with excellent thermal stability and extremely high wear resistance.
Application:
Carbon Steel, Alloy Steel, High Hardness Steel <55HRC, 201/316/304, Cast Iron General Inserts, Cast Iron Milling Inserts, Roughing Inserts
Coating Properties:
| Coating Composition | AlTiN Based |
| Color | Black |
| Thickness(μm) | 6.0±1 |
| Vickers hardness at room temperature(GPa) | 38±3 |
| Residual compressive stress(GPa) | -3.0±1 |
| Coating Temperature(℃) | < 500 |
| Maximum operating temperature(℃) | 1100 |
Metal Machining – CNC Insert
HPM120 Coating Principle:
Huasheng's independently developed new composite machine HA800 uses arc ion plating technology to adjust the multi-layer structure of the coating, which is beneficial to stress reduction and resistance to crack propagation. It has excellent antioxidant properties, wear resistance and excellent coating adhesion.
Application:
Carbon Steel, Alloy Steel (<45HRC), Stainless Steel and Cast Iron
Coating Properties:
| Coating Composition | AlCrN Base |
| Color | Purple |
| Thickness(μm) | 2.5±0.3 |
| Vickers hardness at room temperature(GPa) | 35±3 |
| Residual compressive stress(GPa) | -3.5±1 |
| Coating Temperature(℃) | < 500 |
| Maximum operating temperature(℃) | 1100 |
Metal Machining – CNC Insert
HE250 Coating Principle:
Huasheng's independently developed new composite machine HA800 uses arc ion plating technology to adjust the multi-layer structure of the coating, which has excellent crack resistance; the use of a bonding transition layer improves the bonding strength of the substrate; the high hardness layer on the surface and the interlayer bonding strength have excellent high wear resistance.
Application:
Alloy Steel, Hardened Steel (45-62HRC)
Coating Properties:
| Coating Composition | TiAlSiN Base |
| Color | Bronze |
| Thickness(μm) | 2.5±0.3 |
| Vickers hardness at room temperature(GPa) | 37±3 |
| Residual compressive stress(GPa) | -4.5±1 |
| Coating Temperature(℃) | < 500 |
| Maximum operating temperature(℃) | 1100 |
G4-U2 Coating Parameters
Process Material:
Carbon Steel, Alloy Steel, High Hardness Steel <55HRC
201/316/304, Cast Iron
General Purpose Inserts, Cast Iron Milling Inserts, Roughing Inserts
| Coating Composition | AlTiN-Based |
| Color | Black |
| Thicnkess(μm) | 6.0±1 |
| Vickers hardness at room temperature(GPa) | 38±3 |
| Residual compressive stress(GPa) | -3.0±1 |
| Coating Temperature(℃) | < 500 |
| Maximum operating temperature(℃) | 1100 |
| Coating Structure | Coating Performance |
| High aluminum content coating | The coating has excellent oxidation resistance |
| Using Super HiPiMS | Smooth surface without droplets, low friction coefficient |
| Optimized coating thickness | The coating has excellent thermal stability and extremely high wear resistance |
| Balance of coating hardness, toughness and low stress | Covers more comprehensive performance |
HuangSheng®G4-U2
Case Study 1:General Machining
Tool Specification: APMT1604
Process Material:
P20/H、718/H/HH、738/H/HH、H13、2316/H、2083/H、S136/H/HH、NAk80、420H、8407、2311
Test Conditions:
Processing Method: Rough Milling
Test Results:
Test passed, 50% higher than LM
Source: Customer’s Test
| Inspection Points | Inspection Standard |
| Product Color | Black |
| Tool Passivation Walue (μm) | 20-30 |
| Coating Thickness (μm) | 5-6 |
| Coating Hardness (GPa) | 33-36 |
| Binding Force (N) | >90 |
| Internal Stress (GPa) | -3 to -5 |



HuaSheng® HPM120
Application
Steel Milling
General Machining
| Coating Composition | AlCrN-base |
| Colour | Purple |
| Thickness(μm) | 2.5±0.3 |
| Vickers hardness at room temperature(GPa) | 35±3 |
| Residual compressive stress(GPa) | -3.5±1 |
| Coating Temperature(℃) | 0.4±0.1 |
| Maximum operating temperature(℃) | 1100 |
| Coating structure | Coating performance |
| The latest AIP technology AlCrN-base coating | Provides excellent coating adhesion and ensures coating reliability |
| Excellent anti-oxidation and wear resistance | Suitable for medium and high cutting speed processing |
| Optimized multi-layer structure | Good for stress reduction and crack growth resistance |
| Balance between coating hardness and residual compressive stress | Provides high thermal shock stability for continuous machining of hard materials |
| Incorporating the latest HiPIMS and AIP technologies | Combining the advantages of two advanced coating technologies |
HuaSheng® HPM120
Case Study 1: Medium Carbon Steel 45# Machining (22~34HRC)

3h Wear-HPM120

3h Wear-Competitor
Tool Specification:
APMT1135PDER,Bar D17
Process Material:
45#(22~34HRC)
(JIS S45C、AISI 1045、DIN 1.0503)
Test Conditions:End/Face Milling
Cutting Speed Vc = 117m/min
Feed Speed Fz = 0.57mm/z
Cutting Depth ap = 0.3mm
Cutting Width ae = 12.75mm
Cooling Method:Air Cool
Test Results:
Huasheng’s HPM120 coated tool lasted 5 hours
While competitors coated tool only lasted 3 hours
Improvement of 67%
Source:Huasheng Machining Laboratory

HuaSheng® HE250
Application
Turning Inserts, Milling Inserts
General Machining, High Hardness Machining
Single Sided Milling, Double Sided Milling, Hole Machining
| Coating Composition | AlTi-base |
| Color | Bronze |
| Thickness(μm) | 2.5±0.3 |
| Vickers hardness at room temperature(GPa) | 37±3 |
| Residual compressive stress(GPa) | -4.5±1 |
| Coating Temperature(℃) | < 500 |
| Maximum Operating Temperature(℃) | 1100 |
| Coating Structure | Coating Performance |
| The use of conformable transition layers | Improve the bonding strength between substrate and layers |
| Multi-layer architecture | Excellent crack resistance |
| High hardness layer appearance | High wear resistance |
HuaSheng® HE250
Case Study 1: 316L Stainless Steel Machining

21min-HE250

21min-Competitor
Tool Specification:
WNMG080408
Process Material:
SUS316L
Test Conditions:Continuous
Cutting Speed Vc =200m/min
Feed Speed Fn =0.2mm/r
Cutting Depth ap = 1.5mm
Cooling Method:Emulsion
Test Results:VB=300μm,Machining Time Comparision
Huasheng’s HPM120 coated tool lasted 25 minutes
While competitors coated tool only lasted 21 minutes
Improvement of 19%
Source:Huasheng Machining Laboratory



HD500