PRODUCT DATA SHEET
EL-CS- · REV 1 · Jul 2026
Elbows · Calcium Silicate
Calcium Silicate Elbow
BRAND: Johns ManvilleSKU FAMILY: EL-CS-4 STOCKED SIZES
Mitered fitting insulation cut from Thermo-12 Gold calcium silicate pipe sections to insulate 90° and 45° ells on high-temperature lines.
AT A GLANCE
Max service temp1200°F
FormMitered/segmented elbow
Thickness range2"–3"
FacingNone
StandardASTM C533
Flame / smoke0 / 0 (ASTM E84 / UL 723)
TECHNICAL DATAPER MANUFACTURER
| Standard / specification | ASTM C533 Type I |
| Thermal conductivity (k) | 0.41 @ 200°F |
| Density | 14 pcf (min dry avg) |
| Compressive resistance | >100 psi @ 5% (ASTM C165) |
| Combustibility | Non-combustible per ASTM E136 |
APPLICATIONS
- Steam and hot process elbows
- Refinery/power fittings
- Abuse-prone fittings
THERMAL CONDUCTIVITY — K VS. MEAN TEMPBTU·IN/HR·FT²·°F
| Mean °F | 200 | 300 | 400 | 500 |
|---|
| k value | 0.41 | 0.45 | 0.49 | 0.55 |
STOCKED SIZES & SKUS4 SIZES
| SKU | NOM. SIZE | WALL / 2ND |
|---|
| EL-CS-90-1800-300 | 18" | 3" |
| EL-CS-45-1000-300 | 10" | 3" |
| EL-CS-45L-1000-200 | 10" | 2" |
| EL-CS-90-600-200 | 6" | 2" |
FEATURES
- Rated to 1200°F
- Fabricated from ASTM C533 Type I calsil
- Non-combustible
- High compressive strength
- XOX corrosion inhibitor
PACKAGING & HANDLING
| Packaging | Segmented sets, cartoned |
| Handling & storage | Keep dry; store indoors off the ground; handle sections by supporting full length |
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Data shown is nominal and per the manufacturer's published literature; verify against the current submittal and SDS before specifying. Sun City Energy Supplies stocks to spec, fabricates to size, and returns quotes the same business day. Informational only — not a warranty of fitness for a particular purpose.