furnaces for heat treating of cold rolled steel strip • Skin pass mills.CR Slitting lines and Cut to length lines. • Every process is closely monitored and end products are subjected to a battery of tests to determine Hardness‚ Tensile strength‚ Yield strength‚% of Elongation‚ cupping test and Bend test in order to meet stringent customer specification. • Finished products are carefully packed‚ using polythene and gunny for coils and poly craft and wooden/steel pallets for sheets to
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fatigue life and tensile strength for magnesium alloy were investigated in this study. At least 20 specimens were tested to obtain the scatter data of fatigue limit‚ fatigue life and tensile strength‚ respectively. The probability distributions of fatigue limit‚ fatigue life and tensile strength were evaluated by using Normal distribution and Weibull distribution function. The values of the Weibull modulus‚ m were 159‚ 10‚ 175 for fatigue limit‚ fatigue life and tensile strength‚ respectively. Therefore
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Materials 2013a)‚ Yield Strength = 250MPa (AZO Materials 2013a)‚ Tensile Strength= 400-550MPa (AZO Materials 2013a)‚ Ductility based on elongation=23%( AZO Materials 2013a)‚ and ductility based on area of reduction = 15% (AZO Materials 2013a). A published value on the modulus of resilience could not be located. The published values for the aluminium specimen are‚ Modulus of elasticity= 68.9GPa (ASM Incorporated n.d.)‚ Yield Strength= 276MPA (ASM Incorporated n.d.)‚ Tensile Strength= 310MPa (ASM Incorporated
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Design of Waste Heat Boiler 1.00 Introduction: It is a High Pressure & High Temperature exchanger to transfer heat from synthesis gas of Ammonia and generate high pressure steam from boiler feed water. Such exchangers are being designed as per International Codes viz. ASME Section VIII‚ Div-2 an American code or AD Markbleter a German code. Since it is generating steam on shell side‚ the shell is also to be designed as per IBR (Indian Boiler Regulation) code. In India and other foreign
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thinned down in the middle‚ thus making the material lighter. It has an excellent strength to weight ratio obtained from heat-treatment used in its formation. The heat treatment used for this steel does not use quenching rather uses air cooling or air hardening. This results in the steel having a finer grain and raises the yield strength in the material. Subsequently due to air hardening the material’s strength increases as the materials temperature cools. This unique air hardening property of
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under the constraint of different process parameters like mould firing temperature‚ pouring temperature‚ firing time and mixing of silica sand of different grain fineness numbers to investigate their effects on the surface hardness‚ impact strength and tensile strength of the final castings. The variations in the trend of the aforesaid mechanical properties were observed and it was deduced out that high mould firing temperature‚ higher pouring temperature‚ maximum firing time and high grain fineness number
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Newly-Developed Ultra-High Tensile Strength Steels with Excellent Formability and Weldability† MATSUOKA Saiji*1 HASEGAWA Kohei*2 TANAKA Yasushi*3 Abstract: JFE Steel has developed and commercialized ultrahigh tensile strength steel series from TS780 MPa to 1 470 MPa with excellent formability and weldability which reduces weight and increases safety in collision when they are applied to the reinforcement parts around a cabin. Those ultra-high tensile strength steels are developed by
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pressure: where σ is stress (in Newtons per square metre or‚ equivalently‚ Pascals). F is force (in Newtons‚ commonly abbreviated N)‚ and A is the cross sectional area of the sample. Tensile Strength; The (ultimate) tensile strength is the level of stress at which a material will fracture. Tensile strength is also known as fracture stress. If a material fractures by ’crack propagation’ (i.e.‚ it shatters)‚ the material is brittle. Yield Stress; On a stress strain graph
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Testing ME-3701-02 3rd March 2009 Ke Chen Abstract This experiment‚ as may be derived from the title‚ involves testing multiple metallic specimens to determine their toughness‚ strength and hardness. The three tests used to determine these characteristics are called the Charpy Impact test‚ tensile strength test and Rockwell Hardness test. As stated by www.key-to-steel.com {1}‚ “Charpy impact test method for metallic materials is specified by European EN 10045 standard. This specification
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the strengthening of metal alloys. It influences some properties of the alloys such as strength‚ hardness and ductility. The purpose of this experiment was to test the effect of temperature and aging time on strength and hardness of 6060 aluminium alloy samples that have roughly similar compositions by subjecting them to different temperatures for different periods of time. The experiment showed that the strength and hardness of the samples increased when they were allowed to age for longer time under
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