Our goods are utilized in numerous fields. Hangzhou EPG Co.,Ltd. , was founded in November, 1997. With its 5 wholly owned subsidiaries. In 2000, EPG took the guide in attaining ISO14001 atmosphere administration certification and thereafter passed the inspection of clean creation and recycling economic climate, winning the title of “Zhejiang Environmentally friendly Business”. aisi 4140 one.7225 SCM440 alloy metal spherical bar
AISI4140 ALLOY EPT BAR
1.EPTT CEPTRACTERISTICS OF 4140 ALLOY EPT
AISI or SAE 4130 quality is a minimal-alloy metal conXiHu (West EPT) Dis.Hu (West EPT) Dis. chromium and molybdenum as strengthening brokers. Its chemical composition is as follows
AISI/SAE 4140 quality is a versatile alloy with good atmospheric corrosion resistance and reasonable energy. It exhibits great overall combos of toughness, toughness, dress in resistance and tiredness energy.
2.Apps of 4140 alloy metal bar
This alloy finds a lot of applications as forgings for the aerospace and oil and gasoline EPTT, aEPTT with myriad uses in the automotive, agricultural and protection EPTT, Common utilizes are solid EPTs and shafts, spindles, fixtures, jigs and collars.
three.EPTT composition of 4140 metal bar
| EPTT Examination | |
| C% | EPTT .38 – .43 |
| Mn% | Manganese .seventy five – one.00 max |
| P% | Phosphorus .035 max |
| S% | Sulfur .040 max |
| Si% | Silicon .20 – .35 |
| Cr% | Chromium .80 – one.ten |
| Mo% | Molybdenum .15 – .twenty five |
4.Equipped dimensions of alloy metal bar:16-310mm with scorching rolled offer condition
Prepared stock:1000tons
5.Producition method of hot rolled alloy metal bar 4140 4130
6.4140 1430 4150 Alloy steel bar EPT situation
Surface Therapy: Peeling, Turning, EPT, Milling, Drilling, Boring
Warmth Remedy: Normalizing, Annealing, Quenching Tempering
7.Warmth Treatment
Warmth remedy is carried out right after very hot doing work to renEPTTthe steel appropriate for machining, and to meet up with the mechanical house ranges specified for the steel’s distinct programs.
8.ANNEALING
EPTs of 4140 quality may possibly be annealed by transferring the parts straigEPTT from the forging operation to a furnace held at a suitable temperature, among 1450 and 1550 ordm F (790 and 840 ordm C), EPTT for a suitable time then furnace cooling, forming a construction suitable for machining. This kind of treatment method is best used for parts with straightforward shapes. If some regions of a forging will finish considerably colEPTTthan other folks then a uniform composition will not be attained, in which situation a spheroidizing anneal at close to 1380 ordm F (750 ordm C) may possibly be employed. It is safe to say that knowledge on your own will decide the best sort of annealing treatment method to be used prior to machining.
nine.NORMALIZING
This process is defined as heating a metal to a temperature earlier mentioned the ferrite to austenite transformation variety and then cooling in air to a temperature nicely under this transformation variety. This treatment might be carried out on solid products as a conditioning treatment prior to ultimate warmth treatment. Normalizing also serves to refine the construction of forgings that migEPTT have cooled non-uniformly from their forging operation. The nominal normalizing temperature for 4140 grade is 1600 ordm F (870 ordm C), but production expertise might necessitate a temperature either 50 ordm F (10 ordm C) earlier mentioned or below this determine. In reality when forgings are normalized before, say, carburizing or hardening and tempering, the higher range of normalizing temperatures is used. When normalizing is the last warmth remedy, the reduce temperature assortment is utilised.
