0.2% Proof Stress, U.T.S, Elongation, Weight per meter Run, Surface Characteristics, Bend and Rebend Test.

C,S & P

(A) BOLTS & RIVETS

For full size Bolts: Tensile, Hardness, Wedge tensile, Head soundness, Proof Load test, Shear Strength & cantilever test. For machined specimen - Yield strength 0.2% proof Stress, UTS and elongation, Dump test of Rivets, Torque test of bolts.

N.B.: All above testing arrangements are available with a maximum load of 60 ton for the sizes.

(i).M3 to M39,
(ii).1/4”,3/8",1/2”,5/8",3/4",7/8",1: BSW and
(iii).1/2”, 5/8",3/4"",1"

Surface integrity, Decarburisation, Retempering and micro test (carbide
precipitation for S.S. bolt), Embrittlement test and surface discontinuites.

Mass of coating, Uniformity of Coating, verification of coating, coating thickness and adhesion of coating.

C, Mn, S & P – for Carbon Steel Bolts
C, Mn, Si, Ni, Cr, Mo, S & P – for Alloy Steel Bolts.

(B) NUTS:

Proof load test, Hardness, Widening Test, Drifting test, Ageing Test & Torque Test.

[Sizes of the nuts are same as mentioned in bolts with a maximum load of 60 ton.]

Surface discontinuities, Embrittlement test and carbide precepitation for S.S. Nuts.

Mass of coating, uniformity of coating, Adhesion, verification of coating
& thickness of coating.

C, S & P – for Carbon Steel Nuts

C, Mn, Si, Ni, Cr, Mo, S & P – for Alloy Steel Nuts

(C) SPRING WASHER:

Permanent set test, Permanent load test, Twist test, and Hardness test.

Mass of coating, Uniformity of coating ,Thickness of coating and verification of
coating.

C, Si, Mn, S & P (BY SPECTRO AS WELL AS BY WET ANALYSIS)

Transverse Root Bend Test, Transverse Face Bend, Transverse Side Bend Test, Transverse Tensile Test. All weld tensile test, Longitudiual Bend test, Hardness Survey & Fracture Test.

Macro test, I.G.C. Test (Practice A,B, & E as per ASTM A 262)

Parent Metal as well as weld metal.

C, Si, Mn, S, P, Ni, Cr, Mo, V, Cu, Ti and Cb. (BY SPECTRO AS WELL AS WET METHOD)

Hardness (Rockwell, Brinell, Vickers), Proof Stress, Tensile, Elongation and Reduction in Area.

Microexamination with carbide precipitation and Intergranular test as per ASTM A-262, Practice – A, B,C, D & E.

Load Compression test of Spring, Load test of U-Bolt & Shackles.
Flattening test of Tubes / Pipes.
Expansion / Drifting test of Tube.
Wrapping test of Wire.

Copper and Copper Alloys : Cu, Ni, P, Zn, Pb, Fe, Al, As, Bi, Si and Sn. (BY WET ANALYSIS) Aluminium and Aluminium Alloys : Si, Cu, Pb, Fe, Mg, Ni, Sn, Mn, Ti, Cr & Zn. (BY SPECTRO AS WELL AS BY WET ANLAYSIS) Nickel and Nickel Base Alloys : Complete analysis. Ferro Alloys : Complete analysis except ferrochrome.

Proof Stress, UTS and Elongation. Hardness – Brinell (62.5 kg, 250 kg and 500 kg load) and Vickers (1 kg, 5 kg and 10 kg load)

Heat Treatment is done when tensile test is specified after heat treatment. Heat
Treatment Schedule is provided for required Coupon Hardness.

(Polymer Products, Fiber Reinforced Plastics, Flexible and Rigid Foam, Molded Polymer Components, Plastic Films and Sheets, Plastic Materials Products and Plastic Pipe).

1. Tensile Strength with Elongation
2. Compressive Strength with Modules at compressive load
3. Shore Hardness `D’
4. Rockwell Hardness, R and M Scale
5. Cross Breaking Strength of Flexural Strength
6. Bending Strength

(Gaskets, Seals and different types of Packings, Industrial Belts, Natural and Synthetic Rubber Products, Molded and Extruded Rubber Sheets for testing of Compounding Tyres and many Misc. Products)

1. Tensile Strength with Elongation
2. Modulus at specified elongation
3. Hardness, Shore `A’
4. Compression Set at specified temperature
5. Tension Set
6. Angular Tear Strength
7. Compressibility & recovery
8. Adhesion of Rubber to Fabric
9. Adhesion of Rubber to Metal
10. Breaking strength and elongation of Industrial Belt and Conveyor Belt.

Weight per unit area, Ends & Picks, Count of yarn, shrinkage / elongation, Breaking strength, scouring loss, starch / sizing material, weaving, wool content, cotton content, nylon content, polyster content, rayon content, viscose content of blended fabric, bundesmann test, barium content / degree of mercerization and composition of blended fabric.

i.CEMENT: Fineness, setting time, soundness, compressive strength of cement and cement
cube, and chemical analysis.

ii.FINE AGGREGATE & COARSE AGGREGATE (Sand & Stone Chips): Aggregate abrasion value, crushing value, impact value, grading & fineness modulus, flaking index, elongation index, specific gravity, bulk density, water absorption, soundness, aggregate alkali, reactivity, deleterious material, bulking of sand and silt content in fine aggregate.

iii.BUILDING BRICKS: Crushing strength (compressive strength), water absorption, efflorescence & dimensions.

iv.CERAMIC UNGLAZED VITREOUS TILES: Squareness, warpage, water absorption, compressive strength, flexural strength (upto 60 Ton) & resistance to acid.

v.BITUMEN FELT: Breaking strength, pliability, heat resistance test, pressure leakage test and water absorption.

vi.*PAVING BITUMEN: Specific Gravity, Water Content, Flash Point, Softening Point, Penetration, Penetration Ration, Ductility, Matter Soluble in Trichloroethyline, Viscosity.

vii.*BLOWN BITUMEN: Specific Gravity, Flash Point, Penetration, Ductility, Matter Soluble in Trichloroethyline.

viii.BENTONITE: Moisture Content, pH, Sieve Analysis, Marsh Viscosity, Liquid Limit, Plastic Limit, Free Swell.

ix.*PLASTICISER: Physical and chemical tests.

i.COALTAR TAPE: Thickness, weight, breaking strength, adhesion as per AIWWA : C-203-97 solvent insoluble / soluble content. Test of coaltar component in the tape (softening point, penetration and filler content).

ii.PAINT PRIMER TYPE–B: Type of the paint, drying time, flash point, volatile matter, viscosity, coverage and application property.

iii.COALTAR HARD PITCH: Softening point, specific gravity, ash content, trichloroethylene soluble and petrol insoluble content.