KLINGER® GRAPHITE LAMINATE XSM

KLINGER® GRAPHITE LAMINATE XSM

KLINGER® GRAPHITE LAMINATE XSM is a high-temperature sealing designed to work in extreme conditions, reaching temperatures up to 550°C, particularly dedicated to applications in the automotive industry.

Construction
The sealing material is based on specially oxidation-protected expanded graphite, manufactured without the addition of glue, resin, or impregnating agents, eliminating the toxic risks associated with the presence of organic components. An integral part of the construction is a 0.1 mm perforated stainless steel insert, which provides a durable mechanical connection of graphite with metal and ensures the unchanged physical properties throughout the temperature range.

Applications
KLINGER® GRAPHITE LAMINATE XSM is mainly used in the automotive industry where exceptional resistance to oxidation and high sealing stability at extreme temperatures is required.

Key Features

• Special oxidation-protected graphite foil
• Excellent chemical resistance
• Exceptional resistance to high temperatures
• Mechanical connection of perforated stainless steel insert with graphite

Benefits

• Consistent physical properties throughout the temperature range
• Very good sealing, compliant with TA-Luft requirements
• Reliability and operational safety at temperatures up to 550°C

Standard Dimensions
Plates are available in dimensions of 1000 x 1000 mm, offered in thicknesses of 1.0 mm, 1.5 mm, and 2.0 mm. Dimensional tolerances are ±5% for thickness and ±4 mm for length and width, with the possibility of adjusting other dimensions and tolerances upon request.

Certifications and Approvals

• DIN-DVGW

Technical Specification - KLINGER® GRAPHITE LAMINATE XSM

Thickness
Available variants: 1.0 mm, 1.5 mm, 2.0 mm

Graphite Layer Density
According to DIN 28090-2 standard, the density is 1.0 g/cm³ for all variants.

Graphite Purity
According to DIN 51903 standard, graphite purity is ≥ 99.0%. For nuclear-grade applications, a version with purity ≥ 99.8% is available upon request.

Metal Reinforcement
The product uses a 0.10 mm thick perforated stainless steel insert (type 1.4401 or 1.4404), with one insert used in all variants.

Mechanical Properties
Compressibility (ASTM F 36 A):

• 1.0 mm: 25–35%
• 1.5 mm: 30–40%
• 2.0 mm: 35–45%

Recovery (ASTM F 36 A):

• 1.0 mm and 1.5 mm: 15–20%
• 2.0 mm: 12–18%

Residual Stress (DIN 52913, 16 h / 50 MPa / 300°C):

• All variants: ≥ 46 MPa

Crush Strength per Klingera method:

• 50 MPa

Sealing Properties
Thickness Loss:

• At 23°C:
  • 1.0 mm: 30–40%
  • 1.5 mm: 35–45%
  • 2.0 mm: 35–45%
• At 300°C: 1–3% (for all variants)

Gas Permeability λ (DIN 28090-2):

• 1.0 mm: < 0.06 mg/s·m
• 1.5 mm and 2.0 mm: < 0.10 mg/s·m

Chloride Content in Graphite Layer (DIN 28090-2):

• ≤ 40 ppm

Notes
Detailed specification of the graphite used is available in the Graphite Vademecum and can be provided upon request.