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| C-16
| LOAD TESTING REFRACTORY BRICK AT HIGH TEMPERATURES-T9300 |
A 25 psi load is applied to 9" x 4 1/2" x 2 1/2" or 3" bricks during a specified heating schedule. A minimum of two specimens per type/brand is suggested by ASTM. the percent deformation is measured on each brick after testing simultaneously in a gas-fired kiln up to 3100°F. |
| C-20
| APPARENT POROSITY, WATER ABSORPTION, APPARENT SPECIFIC GRAVITY, AND BULK DENSITY of BURNED REFRACTORY BRICK AND SHAPES BY BOILING WATER-T9310 |
the apparent porosity, bulk density, apparent specific gravity, and water absorption are determined by the boiling method. Testing of five specimens (1/4 brick or a 25 to 30 in3 piece) per type/brand is suggested by ASTM |
| C-24
| PYROMETRIC CONE EQUIVALENT of FIRECLAY AND HIGH ALUMINA REFRACTORY MATERIALS-T9320 |
Compares the deformation of prepared cone samples with Orton PCE test cones. Indicate approximate cone value anticipated or describe material. A representative sample of 150 gm or more of granular material to pass a No. 70 ASTM Sieve (No. 65 Tyler) should be submitted. |
| C-92
| SIEVE ANALYSIS AND WATER CONTENT of REFRACTORY MATERIALS-T9350 |
Water Content: A 2 to 5 lb. representative sample of material should be submitted. Sieve Analysis: Tyler Standard series sieves are used. A 2 to 5 lb. representative sample of material should be submitted. |
| C-93
| COLD CRUSHING STRENGTH AND MODULUS of RUPTURE of INSULATING FIREBRICK-T9360 |
Crushing Strength: the crushing load is applied to the 4 1/2" x 4 1/2" face of half bricks. Testing of 10 specimens per type/brand is suggested by ASTM. MOR: Flexural strength is determined in three-point bending on 9" x 4 1/2" x 2 1/2" or 3" bricks. Testing of ten specimens per type/brand is suggested by ASTM. |
| C-113
| REHEAT CHANGE of REFRACTORY BRICK-T9370 |
Three 9" x 4 1/2" x 2 1/2" or 3" bricks are heated on a specified heating schedule and the percent linear change is reported. At least three 9" bricks per brand/type are suggested by ASTM. |
| C-133
| COLD CRUSHING STRENGTH AND MODULUS of RUPTURE of REFRACTORIES-T9380 |
Crushing Strength: the crushing load is applied to the 2" x 2" face of a 2" cube or the 2" diameter face of a 2" diameter x 2" high cylinder. Testing of five specimens per type/brand is recommended by ASTM. MOR: Flexural strength is determined in three-point bending on 9" x 4 1/2" x 2 1/2" or 3" bricks. OTher sizes can be used depending on the material. Testing of five specimens per type/brand is recommended by ASTM. |
| C-134
| SIZE AND BULK DENSITY of REFRACTORY BRICK AND INSULATING FIREBRICK-T9390 |
the weight per volume is determined using the specimen weight and dimensions. Warpage is measured with the use of warpage wedges. Testing of ten specimens of each type/brand is suggested by ASTM. |
| C-135
| TRUE SPECIFIC GRAVITY of REFRACTORY MATERIALS BY WATER IMMERSION-T9400 |
A water immersion technique is used to determine the true specific gravity of a ground sample. A completely representative sample is required for the analysis. |
| C-179
| DRYING AND LINEAR CHANGE of REFRACTORY PLASTIC AND RAMMING MIX SPECIMENS-T9410 |
Three 9" bricks are molded in a press at 1000 psi and the linear drying and firing shrinkage is determined. A 50 lb. representative sample should be submitted, including a specification of the type/class of the materials. |
| C-181
| WORKABILITY INDEX of FIRECLAY AND HIGH-ALUMINA PLASTIC REFRACTORIES-T9420 |
the workability/consistency of as-received material is determined. Cylindrical specimens are impacted under a 14-lb. load and the percent deformation is reported. the testing of five specimens is recommended by ASTM. A 10 lb. representative sample should be submitted, including the production date for the material. |
| C-182
| TheRMAL CONDUCTIVITY of INSULATING FIREBRICK-T9430 |
the heat flow through a refractory is determined with a water-cooled copper calorimeter. the temperature limit of refractory must be specified, as well as the hot face or mean test temperatures desired. the maximum hot face temperature for testing is 2700°F. the specimens required are six 9" bricks or an 18" x 13.5" x 2.5" slab. |
| C-198
| COLD BONDING STRENGTH of REFRACTORY MORTAR-T9440 |
Fireclay brick halves are bonded with a 1/16" thick joint. After air and oven drying, the MOR is determined for the brick/joint assembly. Testing of 5 specimens is suggested by ASTM. At least 10 lbs. of mortar should be submitted for analysis. |
| C-199
| PIER TEST of REFRACTORY MORTARS-T9450 |
A multiple brick pier is made with 1/8" thick vertical and horizontal joints. the assembly is air and oven dried, and Then fired for 5 hours at the specified temperature. If the mortar flows from the joints during firing, it fails the test. At least 10 lbs. of mortar should be submitted of analysis. |
| C-201
| TheRMAL CONDUCTIVITY of REFRACTORIES-T9460 |
The heat flow through a refractory is determined with a water-cooled copper calorimeter. the temperature limit of refractory must be specified, as well as the hot face or mean test temperatures desired. the maximum hot face temperature for testing is 2700¡F. the specimens required are six 9" bricks or an 18" x 13.5" x 2.5" slab. |
| C-202
| TheRMAL CONDUCTIVITY of REFRACTORY BRICK-T9470 |
The heat flow through a refractory is determined with a water-cooled copper calorimeter. the temperature limit of refractory must be specified, as well as the hot face or mean test temperatures desired. the maximum hot face temperature for testing is 2700¡F. the specimens required are six 9" bricks or an 18" x 13.5" x 2.5" slab. |
| C-210
| REHEAT CHANGE of INSULATING FIREBRICK-T9480 |
Three 9" x 4 1/2" x 2 1/2" or 3" bricks are fired for 24 hours after which the percent linear and volume changes are measured. |
| D-257 |
D-C RESISTANCE OR CONDUCTANCE of INSULATING MATERIALS-T9485 |
Surface and volume electrical resistivity of insulating materials are determined by DC, as well as by AC methods. Specimen dimensions and electrode configuration are determined on an individual basis. |
| C-288
| DISINTEGRATION of REFRACTORIES IN AN ATMOSPHERE of CARBON MONOXIDE-T9500 |
Shows the comparative behavior of refractory products with accelerated exposure to nearly pure CO at 940°F. the sample performance is rated based on the ASTM visual criteria. Specimens shall be 9" x 2 1/2" or 3" square in cross section. |
| C-357
| BULK DENSITY of GRANULAR REFRACTORY MATERIALS-T9510 |
A 3 mesh by 8 mesh sample of about 70 gm is weighed, boiled in water, and its volume measured using a buret. A sample of at least 5.5 lbs. should be submitted as recommended by ASTM. |
| C-417
| TheRMAL CONDUCTIVITY of UNFIRED MONOLITHIC REFRACTORIES-T9520 |
The heat flow through a refractory is determined with a water-cooled copper calorimeter. the temperature limit of refractory must be specified, as well as the hot face or mean test temperatures desired. the maximum hot face temperature for testing is 2700¡F. the specimens required are six 9" bricks or an 18" x 13.5" x 2.5" slab.
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| C-491
| MODULUS of RUPTURE of AIR-SETTING PLASTIC REFRACTORIES-T9550 |
Five 9" x 4 1/2" x 2 1/2" or 3" bricks are prepared in a hydraulic press at 1000 psi. MOR is determined after drying and firing the specimens. |
| C-577
| PERMEABILITY of REFRACTORIES-T9560 |
Air or nitrogen is used to determine permeability. the direction of flow should be indicated by arrows on the specimens. Testing of four 2" cube specimens of each type/brand is recommended by ASTM |
| C-583
| MODULUS of RUPTURE of REFRACTORY MATERIALS AT ELEVATED TEMPERATURES-T9570 |
Flexural strength is determined for 1" x 1" x 7" bars at temperature in three-point bending. Price includes a 12 hour hold at the test temperature. Testing of five specimens per type/brand is recommended by ASTM. |
| C-605
| REHEAT CHANGE of FIRECLAY NOZZLES AND SLEEVES-T9580 |
Specimens (25 to 26 in3) are taken from four different sleeves or nozzles and fired per Schedule D of ASTM C-113 (2461°F reheat). the percent linear and volume changes are measured. |
| C-704
| ABRASION RESISTANCE of REFRACTORY MATERIALS AT ROOM TEMPERATURE-T9590 |
the volume of materials abraded by a specified exposure to SiC grit blast is measured. Specimens are typically 4 1/2" square and 3" thick. |
| C-830
| APPARENT POROSITY, LIQUID ABSORPTION, APPARENT SPECIFIC GRAVITY, AND BULK DENSITY of REFRACTORY SHAPES BY VACUUM PRESSURE-T9630 |
A vacuum is used to determine the apparent porosity, bulk density, liquid absorption, and apparent specific gravity. Testing of five specimens (1/4 brick or 25 to 30 in3 piece) per type/brand is suggested by ASTM. |
| C-831
| RESIDUAL CARBON, APPARENT RESIDUAL CARBON, AND APPARENT CARBON YIELD IN COKED CARBON CONTAINING BRICKS AND SHAPES-T9640 |
Used for characterization and comparison of carbon containing brick and shapes. A 1" x 3" x 6" specimen is suggested by ASTM. |
| C-832
| MEASURING the TheRMAL EXPANSION AND CREEP of REFRACTORIES UNDER LOAD-T9650 |
Two specimens, as suggested by ASTM, are tested simultaneously under a 25 psi compressive stress for 50 hours. OTher compressive stresses, up to 100 psi can be specified. the percent linear change is recorded continuously during the heat up and creep period under load. Specimen size is 1 1/2" square by 4 1/2" long. |
| C-860
| DETERMINING AND MEASURING CONSISTENCY of REFRACTORY CONCRETE-T9670 |
This method determines the optimum water content and consistency of castable products. Consistency is judged with the Ball-in-Hand method or measured with the Flow Table method. |
| C-862
| PREPARING REFRACTORY CONCRETE SPECIMENS BY CASTING-T9680 |
Five brick specimens are prepared using the water content determined in ASTM C-860. This procedure assures the preparation of uniform samples for testing purposes. At least 50 lbs. of each material for testing should be submitted. Mixing is performed in a Hobart mixer and casting is performed eiTher by spading or by vibration. |
| C-863
| EVALUATING OXIDATION RESISTANCE of SILICON CARBIDE REFRACTORIES AT ELEVATED TEMPERATURES-T9690 |
Steam is used to accelerate the oxidation of SiC refractories at elevated temperatures. ASTM specifies a 500 hour test duration at a temperature between 800°C and 1200°C. the average volume and bulk density changes are measured on three specimens per material. |
| C-865
| FIRING REFRACTORY CONCRETE SPECIMEN-T9700 |
Firing schedules are for five refractory concrete specimens made in accordance with ASTM C-862 and classified by ASTM C-401. Price includes linear change measurement. NOTE: Many of the tests listed for castables are also used for gunning refractories. Gunned specimens prepared by the supplier according to ASTM. C-903 can be tested upon request. |
| C-885
| YOUNG'S MODULUS of REFRACTORY SHAPES BY SONIC RESONANCE-T9710 |
Resonant Frequency is determined by a non-destructive sonic method in the flexural mode on prism or rod specimens. Young's Modulus is calculated from the resonant frequency, mass, and dimensions. |
| C-914
| BULK DENSITY AND VOLUME of SOLID REFRACTORIES BY WAX IMMERSION-T9720 |
This method is used to determine volume and bulk density of a refractory of any shape providing it has sufficient structural integrity to permit handling. At least five representative specimens, as suggested by ASTM, should be supplied. |
| C-973
| PREPARING TEST SPECIMENS FROM BASIC REFRACTORY GUNNING PRODUCTS BY PRESSING-T9730 |
Five brick specimens are prepared using the water content specified by the manufacturer. This procedure assures the preparation of uniform specimens for testing purposes. At least 50 lbs. of each material for testing should be submitted. Mixing is performed in a Hobart mixer and specimens are formed at 1800 psi. |
| C-974
| PREPARING TEST SPECIMENS FROM BASIC REFRACTORY CASTABLE PRODUCTS BY CASTING-T9740 |
Five brick specimens are prepared using the water content specified by the manufacturer. This procedure assures the preparation of uniform specimens for testing purposes. At least 50 lbs. of each material for testing should be submitted. Mixing is performed in a Hobart mixer and casting is eiTher performed by spading or by vibration. |
| C-975
| PREPARING TEST SPECIMENS FROM BASIC REFRACTORY RAMMING PRODUCTS BY PRESSING-T9745 |
Five brick specimens are prepared using the water content specified by the manufacturer. This procedure assures the preparation of uniform specimens for testing purposes. At least 50 lbs. of each material for testing should be submitted. Mixing is performed in a Hobart mixer and specimens are pressed at 10,000 psi. |
| C-1054
| PRESSING AND DRYING REFRACTORY PLASTIC AND RAMMING MIX SPECIMENS-T9750 |
Five brick specimens are prepared at 1000 psi. This procedure assures the preparation of uniform specimens for testing purposes. At least 50 lbs. of each material for testing should be submitted. |
| C-1099
| MODULUS of RUPTURE of CARBON-CONTAINING REFRACTORY MATERIALS AT ELEVATED TEMPERATURES-T9758 |
Flexural strength is determined for 1" x 1" x 6" bars at 2550°F in three-point bending. Testing of five specimens per type/brand is recommended by ASTM. |
| C-1100
| RIBBON TheRMAL SHOCK TESTING of REFRACTORY MATERIALS-T9760 |
Specimens receive alternating 15 minute heating at 1800°F and cooling in air cycles. the before and after shock strength and sonic properties are measured and both the actual and percent change in properties are reported. Five 9" bricks per type/brand are suggested by ASTM. |
| C-1113
| TheRMAL CONDUCTIVITY of REFRACTORIES BY HOT WIRE-T9855 |
the hot wire technique is a transient, intermittent isoThermal method for measuring Thermal conductivity. A thin platinum wire is placed between two appropriately prepared 9" bricks of same density. Heat generated by current applied to the wire is conducted away from the wire at a rate dependent on the Thermal conductivity of the sample. Minimum of two bricks required. |
| C-1171
| QUANTITATIVELY MEASURING the EFFECT of TheRMAL CYCLING ON REFRACTORIES-T9765 |
Determination of the relative Thermal shock resistance of refractories using 5 alternating 10 minute heating at 2190°F and cooling in air cycles. Ten specimens 1" x 1" x 6" per type/brand are required by ASTM, and both the actual and percent change in strength and ultrasonic properties are reported. |
| DIN 51053
| DETERMINATION of CREEP OR REFRACTORINESS UNDER LOAD-T9900 DIN 51064 |
One cylindrical specimen (50 mm diameter x 50 mm high) is tested per firing. the percent linear change is recorded continuously during the heat-up and creep period under load. the minimum size required is a half brick. Standard conditions are 0.2 N/mm2 (29 psi) load and 50 hour hold. |
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ALCOA MODIFIED ALUMINUM CUP PENETRATION-T9810 |
the comparative resistance of refractory brick, mortars, or monolithics can be determined using this cup test, with 7075 aluminum alloy at 1500°F for 72 hours. Two 9" bricks are required. Before and after metal analysis is available at additional cost. |
| |
ALCOA MODIFIED DISINTEGRATION of REFRACTORIES BY ALKALI-T9540 |
Nine 2" cube specimens are required. A 1" hole is drilled into the face of each specimen and filled with eiTher 8 gm of Potassium Carbonate, 8 gm of Sodium Carbonate, or a mixture of 4 gm of Potassium Carbonate and 4 gm of Sodium Carbonate. the effects of firing three cubes each at 900°C, 1000°C, or 1100°C for 5 hours are determined visually. |
| |
ALKALI RESISTANCE-T9800 |
Test specimens are fired to 1700°F in two cycles in the presence of Potassium Carbonate. MOR, MOE, and visual observations are taken before and after exposure to alkali. Ten 1" x 1" x 6" bars are required. |
| |
BONDING STRENGTH AFTER FIRING-T9820 |
Fireclay brick halves are bonded with a 1/16" thick joint. After air and oven drying and a 5 hour hold at the specified firing temperature, the MOR is determined for the brick/joint assembly. Five 9" bricks are required. At least 10 lbs. of mortar should be submitted for analysis. Specimen Preparation and MOR Same as ASTM C-198 Specimen Firing Same as Periodic Kiln Firing. |
| |
CHEMICAL ANALYSIS-T9830 |
Full service analytical capabilities are offered. All analyses are performed by a subcontractor. MTRC prefers to prepare the needed representative powder from the bulk sample(s) submitted. the analyses listed below show the main services provided by MTRC. OTher species can be analyzed if requested. |
| |
CURING OR DRYING CHANGE-T9840 |
For refractory concretes the percent linear or volume change can be calculated after curing based on mold dimensions and after drying based on cured dimensions. At least 50 lbs. of each material for testing should be submitted. |
| |
MICROSCOPIC ANALYSIS-T9775 |
Optical Microscope: Reflected light techniques are used to characterize the microstructure of materials submitted. Photomicrographs can be provided, if requested. Quote. Scanning Electron Microscope: Electron beam techniques are used to characterize the microstructure of materials submitted. Photomicrographs can be provided, if requested. |
| |
PERIODIC KILN FIRINGS-T9200 |
Periodic kiln firing can be performed within all commercial ranges of temperatures and atmospheres, using almost any schedule used by commercial equipment. the prices apply to one firing with 1 cubic foot setting space up to a 5 hour cycle. |
| |
ULTRASONIC VELOCITY -T9780 |
the speed of sound is measured non-destructively for brick through 3 dimensions. Testing of 5 specimens per type/brand is recommended. |
| |
WORKABILITY- T9785 |
A practical test used in industry to determine the approximate working time for placement of a castable in the field. |
| |
X-RAY DIFFRACTION ANALYSIS-T9790 |
the major and minor crystalline phases present in a sample are determined on a qualitative basis. All analyses are performed by subcontractor. MTRC prefers to prepare the needed representative powder from the bulk sample(s) submitted. |
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