Kochlin SPECIAL ALLOYS · SINCE 2009

Lanthanated Tungsten WL10

Lanthanum-strengthened, sag-resistant — longer-life heaters and electrodes

Tungsten · MolyTungsten
Units
Service limit
1700
°C · indicative max
Density
19.2
g/cm³

Chemical composition

W 99%La₂O₃ 1%Minor & residual 0.10%

Nominal: mid-range where both limits are given, the cap where only a maximum is, balance takes the remainder. Exact specified ranges below.

ElementName Content %
Main elements2 elements
W TungstenBal.
La₂O₃ Lanthanum oxide0.8 – 1.2%
ElementName Content %
Minor & residual1 element
Other Other elements, total≤ 0.1%

Where this grade is recommended

Matched in 2 service conditions; ranks and scores computed from the condition-scoring matrix.

Service conditionIndustry TemperatureRankScore
Heating elements & electrodes Furnaces & Vacuum 1000 – 1400 °C 1 / 7 95
Sapphire growth crucibles Solar & Glass ~2050 °C 2 / 4 93

Designations & equivalents

Trade name(s)WL10 / WLa10 / EWLa-1 / Lanthanated tungsten

Cross-references are common near-equivalents for search and shortlisting; substitution across standards requires clause-by-clause verification. All grades in one cross-reference table →

Applicable standards

2 specifications. Name the standard and its edition on the order.

Frequently asked questions

What is Lanthanated Tungsten WL10?

Lanthanated Tungsten WL10 — Tungsten. Lanthanum-strengthened, sag-resistant — longer-life heaters and electrodes

What is the maximum service temperature of WL10?

Typically about 1700 °C; the practical limit depends on media, stress and design life — acceptance per the governing standard.

Which standards cover WL10?

ISO 6848 (tungsten electrodes, WLa10), AWS A5.12 (tungsten electrodes, EWLa-1)

Where is WL10 typically used?

Heating elements & electrodes (Furnaces & Vacuum); Sapphire growth crucibles (Solar & Glass)

In which forms is WL10 available?

Tube, plate, strip, bar, forgings, wire and other forms — sizes and delivery condition confirmed per order, with EN 10204 3.1 / 3.2 certification.

Same series

Download PDF datasheet

This grade’s datasheet as an A4 PDF — for filing, printing or forwarding to colleagues.

Download PDF datasheet

Supply & enquiry

Tube & pipeφ1 – 219 × 0.25 – 25 mmPlate4.76 – 80 mmBarφ8 – 300 mmWire & filler metalsφ0.01 – 8 mm

For this grade we can supply, against your service conditions:

Or email us: info@kochlin.com