SAE Chart

SAE Specification Chart

Commercial Standard Grade16R116R1X16R216R316R3X12R112R212R312R3X9R19R29R39R49R58R5
SAE NumberF-1F-50F-2F-3F-51F-5F-6F-7F-55F-10F-11F-12F-13F-15F-26
NTA Number34R134R134R234R334R326R126R226R326R318R118R2---18R3---17R2
General Properties
Wool Content (fiber basis) min. %959590859295878075958785755545
Density (1"), Lbs./Sq Yd1615.61615.615.612.2412.2412.24128.488.488.488.488.487.2
Standard Thickness Range, in.1/8 to 13/64 to 3/321/8 to 11/8 to 13/64 to 3/321/8 to 11/8 to 11/8 to 11/16 to 3/321/8 to 11/8 to 11/8 to 11/8 to 11/8 to 11/8 to 1
Standard Width, in.6060 or 72606060 or 726060 or 727260 or 72727272727272
Colorwhitewhiteany but gray or blackgraygraywhitegraygraygray/blackwhitegraygraygraygraygray
Physical Properties
Specific Gravity (%)343434343426262626181818181817
Therm. Cond. (70F) btu/hr/sq ft/F/in.0.360.320.360.350.320.30.30.30.30.30.240.240.240.240.25
Thermal Expansion000000000000000
Air Perm (1/16"), cfm/sq ft/0.5" H2)30-Oct15 - 2530-Oct15 - 3515 - 4020 - 5020 - 5020 - 5020 - 5075 - 15075 - 15075 - 15075 - 15075 - 150100 - 200
Liquid Absorption, % by weight (1.0 sp gr)>175>180>175>190>170>250>225>225>225>400>375>350>350>350>400
by volume747574767580808081888888888892
Capillarity (wicking height, 575 SSU, 70F) in.4444433332.52.52.52.52.5---
Coef of Friction Vibration Absorption0.370.370.370.370.370.370.370.370.370.370.370.370.370.370.37
Static load bearing cap/unit areahigh---highhigh---mediummediummedium---lowlowlowlowlowvery low
dynamic stress endurancehigh---highhigh-med.---highhighmedium---highhigh-medmediumlowlowvery low
Noise Reduction Coef (1")0.50.550.50.520.550.580.580.580.580.580.640.640.640.640.65
Mechanical Properties
Tensile Strength (min), psi5005005004003004002752502002252001007575---
Elongation (100 psi), 100%13814169161821253335353739---
Mullen Bursting Strength (1/8"), psi250225225200225175150125200756055504025
Split Resistance (min), lb/2" width33---2822---181612---86322---
Hardness Range, Shore A30 - 40---30 - 4030 - 40---20 - 3020 - 3020 - 30---15 - 2515 - 2515 - 2515 - 2515 - 2515-May
Compressibility 10% defl), psi21---2113---666---443331
Recovery (within 1 min after 10% defl) %999999999999999999999999999999
Abrasion Resistanceexcellentexcellentexcellentexcellentexcellentgoodgoodgoodgoodfairfairfairfairfairpoor
Chemical and Environmental Properties
Effect of Sunlight and Oxidationnonenonenonenonenonenonenonenonenonenonenonenonenonenonenone
Solvent Resistance and Stability in Oilexcellentexcellentexcellentexcellentexcellentexcellentexcellentexcellentexcellentexcellentexcellentexcellentexcellentexcellentexcellent
Acid Resistance, diluteexcellentexcellentexcellentexcellentexcellentexcellentexcellentgoodgoodexcellentexcellentgoodfairfairfair
concentratedgood-fairfair-goodgood-fairgood-fairfair-goodgood-fairgood-fairfairfairfair-goodfair-goodfair-goodfairfairpoor
Alkali Resistance, dilutefairfairfairfairfairfairfairfairfairfairfairfairfairfairfair
concentratedlowlowlowlowlowlowlowlowlowlowlowlowlowlowlow
Temperature Range, F-80 to 200-80 to 200-80 to 200-80 to 200-80 to 200-80 to 200-80 to 200-80 to 200-80 to 200-80 to 200-80 to 200-80 to 200-80 to 200-80 to 200-80 to 200
Please Note: The above information has been carefully reviewed to be as reliable as possible. However, due to the diversity of felt applications we cannot guarantee its accuracy, and urge you to make your own tests to determine the suitability of a given felt material.
Special Orders normally require a 3-4 week lead time and a manufacturing minimum. Items designated as in-stock are normally inventoried, but may occasionally be in the process of being produced, thus requiring a 3-4 week lead time.