0
Grain Size of the steel get changed. Steel Become more hard and it become brittle.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What happens to metal when exposed to hot and cold?
Steel gets stronger
What happens to the steel wool when the power supply is switched on?
Sending a small electrical charge through a pad of steel wool, will cause the metal to glow and burst into flames.
What happens when a steel spoon is rubbed with a polythene?
pieces of paper do not get attract therefore it not charged
What happens if nuclear fuel rods touch?
The cannot as they are inserted in holes in steel support frames that hold several dozen fuel rods. When changing fuel, complete steel support frames are switched and individual rods are not handled.
What happens to steel when it gets cold?
(After it has been heated.) It will harden. (At room temperature.) It will become brittle. (After it has been cooled .) It will become very brittle.
What is tempering of steel?
molding
Why do you heat treat?
You heat treat to improve the molecular structure of the steel. In the untreated state steel is very soft and is relatively easy to bend but when hardened the steel become very hard and brittle. The steel is so brittle after hardening that if say dropped on a concrete floor it may shatter. Tempering relieves some of this stress and makes the steel hard but not too hard.
What has the author Fridolin Reiser written?
Fridolin Reiser has written: 'The hardening and tempering of steel' -- subject(s): Steel
Why is steel better than bronze?
Because of carburization, quenching(heat treatment of steel) and tempering of quenched steel.
What is the purpose of tempering a quench hardened plain carbon steel?
Tempering is applied to quench hardened plain carbon steel to: 1. reduce brittleness. 2. increase ductility. 3. increase toughness. 4. relieve stresses in the martensite structure. Increase in tempering temperature lowers the hardness. The reduction in hardness of the quenched steel depends upon the composition of the alloy and the exact value of the temperature applied.
How can steel cutting tools be used to shape steel objects?
Steel cutting tools that are hardened by tempering them can cut softer, untempered steel. Steel that is high in carbon content can be made tougher than low-carbon steel.
What is the chemical composition of metal en-45?
en 45 is a silicon mangenese spring steel, supplied in the as rolled contition. This steel is suitable for oil hardening and tempering.
What is the tensile strength of 4140 steel?
It will be at least 117,000 psi and as high as 290,000 psi - the range depends on the tempering temperature and heat treat
Can spring steel be heat treated?
Definately spring steel can be heat treated and it has to be heat treated before it can be functioned as a spring. The common way to heat treat spring steel is by quenching and tempering.
Is high carbon steel stronger than tempered steel?
Tempered steel is not a classification of steel. It is a term used to indicate that the steel has undergone proper heat treatment in which case..yes, the steel that has been properly hardened and tempered would be stronger. This answer assumes that the high carbon steel is in its annealed state and has not received heat treatment and tempering of its own.
Why quenching steel must be tempered?
Quenching steel involves rapidly cooling it to increase hardness, but this can make it too brittle. Tempering is a process where the hardened steel is heated to a specific temperature and then cooled slowly. This helps relieve internal stresses and makes the steel tougher and more ductile, balancing hardness with flexibility.
What is the molecular structure of fiberglass?
it is made up from lots of steel and glue
