Tungaloy WGE40 / WGE40R GH730 Grooving Inserts | 4mm PVD Carbide for Stainless & Steel - BEYOND

Tungaloy WGE40 / WGE40R GH730 Grooving Inserts | 4mm PVD Carbide for Stainless & Steel

$134.85 USD

Price shown is a starting point. Contact us for a precise quote based on your requirements.

SIZE: WGE40 GH730

WGE40 GH730
WGE40R GH730

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Description

Tungaloy WGE40 / WGE40R GH730 Grooving Inserts

High-Load 4mm Grooving | Superior Toughness GH730 PVD Grade

"Which 4mm insert is most reliable for high-stability grooving in tough alloy steels?"

The Tungaloy WGE40 and WGE40R in GH730 grade represent the industrial standard for medium-width external grooving and parting-off. Designed for heavy-duty applications, the 4.0mm width geometry combined with the GH730 PVD coated carbide provides a robust solution for machining Stainless Steel, Carbon Steel, and Heat-Resistant Superalloys. The GH730 grade utilizes a high-toughness micro-grain substrate that absorbs mechanical shock during interrupted cuts, while the specialized PVD coating resists thermal cracking and chemical wear. Whether you choose the neutral WGE40 or the right-handed WGE40R, you are guaranteed superior chip control and dimensional accuracy in every cycle.

Model Code Decoder

W
Double-Edge
G
Grooving
E
External
40
4.0mm Width
R
Right Hand*
GH730
PVD Grade

*R indicates Right-Handed; Neutral models (WGE40) have no direction suffix.

GH730 Extreme Durability

An advanced PVD coating optimized for toughness. It effectively stops crack propagation and provides an ultra-smooth surface to prevent chip welding.

Heavy-Duty Chipbreaker

The geometry is reinforced for the 4mm width, enabling efficient chip curling and breaking even at high feed rates in ductile materials like 304/316 Stainless.

Rigid Indexing

The double-ended "W" design ensures highly repeatable center-line heights and rigid clamping, reducing vibration in deep grooves.

Dimensional Standards

ISO Model Metric Width Imperial Width Corner Radius
WGE40 / WGE40R 4.0 mm 0.1575" 0.20 - 0.30 mm

Standard Machining Parameters

Workpiece Material Speed (Vc m/min) Feed (f mm/rev)
Carbon & Alloy Steel 100 - 180 0.08 - 0.20
Stainless Steel 60 - 140 0.05 - 0.15

Matching Tooling

Compatible with Tungaloy CTEL/R or JS-Series 4mm Holders

Browse Professional Grooving Holders

Common Applications

  • Heavy-duty external grooving in oil and gas components.
  • Parting-off larger diameter steel tubes and solid bars.
  • Machining wide grooves for automotive transmission shafts.
  • Efficient stock removal in grooving-turning hybrid cycles.

Equipment Compatibility

Seamlessly integrates with all major CNC turning centers (Okuma, Mori Seiki, Mazak, Doosan). Excellent rigidity for high-torque machines.

Tungaloy Grade Optimization

Grade Substrate Primary Focus
GH730 PVD Carbide Ultimate Toughness / Stainless Alloys.
T9225 CVD Carbide High-Speed General Steel.
UX30 Uncoated Carbide Aluminum & Non-Ferrous.

Industrial Partner: BEYOND

Certified Authentic
100% Genuine Tungaloy Stock
Industrial Expertise
Technical Director Level Support
Rapid Export
Strategic HK Logistics Hub

Verified Industry Feedback

⭐⭐⭐⭐⭐ "Excellent in 4140 Steel" - Mike R., USA
"The WGE40 R in GH730 grade is my go-to for parting 4140 pre-hardened steel. The tool life is double what we got from previous European brands."

⭐⭐⭐⭐⭐ "Rock Solid 4mm Grooves" - Lars E., Germany
"Very rigid design. We get perfect flat bottoms on our grooves and zero chatter issues even at higher feeds."

⭐⭐⭐⭐ "Great Support" - Matteo V., Italy
"Beyond helped us choose the GH730 for our stainless project. It solved our chip control problems instantly. Highly recommended."

Technical FAQ

Q: Should I use WGE40 (Neutral) or WGE40R (Right Hand)?

A: This depends on your holder and lathe setup. If you are using a standard right-hand external holder, choose WGE40R for optimized clearance.

Q: Can I use this for longitudinal turning?

A: While primarily a grooving insert, the "W" series can handle light turning, but for heavy lateral loads, we recommend a dedicated turning-grooving insert.

Pro Machining Tip: Depth of Cut (ap)

When grooving with 4mm inserts like the **WGE40**, always ensure your feed rate is high enough to snap the chip. If the chip bird-nests, increase the feed by 10%—the **GH730** grade has the toughness to handle it. **BEYOND CNC** - Industrial Strength Precision.

© Authored by Beyond Li - CNC Technical Director

Technical FAQ & Buying Guide

Are your carbide inserts interchangeable with major brands like Sandvik, Iscar, or Kennametal?

Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.

How do I choose the correct insert grade and chipbreaker for machining Stainless Steel (M) vs. Carbon Steel (P)?

We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:

  • For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
  • For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
What are the recommended cutting speed (Vc) and feed rate (f) parameters to maximize tool life?

The optimal cutting parameters vary depending on the workpiece hardness and operation type:

  • For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
  • For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.

What is your international shipping policy and typical lead time for orders?

We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.

How do you guarantee the quality and tolerance precision of your CNC tools?

All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.