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W-20 Web Hardness Tester

Name: W-20 Web Hardness Tester
Brand: Beijing Lanetech Square Co., Ltd.

H1: W-20 Webster Hardness Tester: The Go-To for On-Site Aluminum Alloy Verification,

Webster Hardness Testers, widely known as Webster Hardness Pliers, are the premier choice for rapid, on-site hardness assessment of aluminum alloys directly in production and sales environments. They are specifically engineered to evaluate the material strength of aluminum alloys with unmatched speed and efficiency.

H2: Precision Applications for Aluminum & Soft Metals,

The W-20 model excels at measuring the hardness of diverse aluminum forms—including pipes, plates, and fabricated components—as well as other soft metals. It is a critical tool for:

Verifying proper aging of aluminum products;
Ensuring compliance with required material standards;
Differentiating between various aluminum types and their aging states;

Its non-destructive nature makes it exceptionally suitable for high-volume production settings and quality checks in sales areas, enabling quick evaluation of matel spare parts and pieces like aluminum profiles, doors, windows, curtain walls .

H3: Simple Operation & Certified Reliability,

Operation is remarkably straightforward: simply clamp the workpiece and read the hardness value directly. Designed for high efficiency and dependable performance, the W-20 adheres to both the Chinese non-ferrous standard YS/T420-2000 and the American standard ASTM B647-84 (2000), guaranteeing internationally recognized accuracy.

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Technical Parameters of W-20 Webster Hardness Tester

Range	0-20 HW (the equivalent of 20-110 HRE)
Indicator Error	0.5 HW (5 -17 HW)
Repeatability Error	0.5 HW (5 -17 HW)
Weight	0.5 kg
Maximum specimen thickness	compare according to opening size and model
Minimum sample inner diameter	compare according to the anvil size and model

Accesorries of W-20 Webster Hardness Tester

1. Indenter

Crafted from imported specialty steel using advanced manufacturing techniques, the indenter delivers superior hardness and exceptional toughness. This results in an extended service life and excellent interchangeability. Each indenter is packaged in protective German-made packaging for comprehensive protection.

Indenter

2. Indicator Hand

The high-strength pointer is highly resistant to bending or deformation, even after prolonged use or accidental mishandling, ensuring long-term accuracy.

Indicator Hand

3. Dial Glass

Made from high-strength, high-toughness glass, the dial window is highly resistant to breakage from impacts, providing durable protection for the gauge.

Dial Glass

4. Handle

The handle is forged from aluminum alloy and undergoes anodic oxidation, resulting in a user-friendly grip that is highly wear-resistant and resistant to contamination.

Handle

5. Hardness Blocks

Supplied with standard Rockwell hardness blocks, manufactured in strict accordance with metrological verification regulations. Hardness values are laser-etched for permanence, and all data is traceable within its validity period. Surface roughness and flatness fully comply with regulatory requirements.

Hardness Blocks

6. High-quality

High-precision component processing, meticulous machine assembly, and rigorous quality inspection collectively ensure the instrument meets the highest standards of quality and performance.

High-quality

7. Stability

Excellent stability across the entire measurement scale and at all calibration points. The pointer moves smoothly without any "sticking" or "crawling," guaranteeing reliable and consistent readings.

Stability

8. Conversion

A detailed hardness conversion table is provided in the product manual and via a dedicated "Hardness Conversion" application, enabling easy conversion of Webster hardness values to Vickers (HV), Rockwell (HRC, HRB), and Brinell (HB) scales.

Conversion

9. Portability

The kit includes a high-quality portable case with custom-fit sponge cushioning. This design not only ensures excellent portability but also provides maximum protection for the instrument during transport and storage.

Portability

Comparison of W-20 Webster Hardness Tester

W-20 series include three models:

W-20 Webster hardness tester mainly use for inspect aluminum alloy, tube and plate.

W-20a can inspect industrial aluminum extrusions, plates or parts which have the thickness upper limit to 13 mm.

W-20b test small aluminum profiles or aluminum profiles pipes which have the inner diameter over 6 mm.

W-B75, W-BB75 Webster hardness tester inspects copper alloy, and W-B92 Webster hardness tester inspect stainless steel, especially suit for testing the hardness of materials such as mild steel, copper, brass.

MODELS

W-20	Very popular model, used to inspect normal aluminum profiles. Working pieces requirements: Thickness 0.4-6mm,inner diameter>10mm.
W-20a	inspect aluminum profiles with working pieces' thickness within 13 mm.
W-20b	inspect aluminum tubing with working piece inner diameter over 6mm.
WB75	Inspect brass tubing and brass sheets. Woking piece thickness 0.4-6mm, inner diameter>10mm.
W-B75b	Inspect brass tubing and brass sheets. Woking piece thickness 0.4-8mm, inner diameter>6mm.
WBB75	Inspect copper tubing and copper sheets. Woking piece thickness 0.4-6mm, inner diameter>10mm.
W-BB75b	Inspect copper tubing and copper sheets. Working piece thickness 0.4-8mm,inner diameter>6mm.
W-B92	Inspect soft stainless steel sheets, cold-rolled steel, etc. Working piece thickness 0.4-6mm,inner diameter>10mm.

Standard Delivery of W-20 Webster Hardness Tester

STANDARD ASSEMBLY：

Tester

Standard hardness block

Spare indenter

Calibration wrench

Small screwdriver

Carrying case

Dial assembly

Optional Delivery of W-20 Webster Hardness Tester

OPTIONAL ACCESSORIES：

Indenter

Standard hardness block

Dial glass

Optional Accessories

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W-B75 Web Hardness Tester

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