We also can layout and make non-standard merchandise to meet customers’ specific demands. The product nicely displays environmental safety and vitality saving. our merchandise are selling properly in the American, European, South American and Asian marketplaces. 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 low-alloy steel 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 very good atmospheric corrosion resistance and reasonable power. It displays great general mixtures of toughness, toughness, use resistance and tiredness energy.
two.Applications of 4140 alloy steel bar
This alloy finds numerous applications as forgings for the aerospace and oil and gasoline EPTT, aEPTT with myriad employs in the automotive, agricultural and defense EPTT, Typical makes use of 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 – 1.00 max |
| P% | Phosphorus .035 max |
| S% | Sulfur .040 max |
| Si% | Silicon .twenty – .35 |
| Cr% | Chromium .eighty – one.10 |
| Mo% | Molybdenum .fifteen – .25 |
4.Equipped dimension of alloy steel bar:sixteen-310mm with sizzling rolled supply situation
Prepared stock:1000tons
five.Producition approach of scorching rolled alloy steel bar 4140 4130
6.4140 1430 4150 Alloy steel bar EPT problem
Area Treatment method: Peeling, Turning, EPT, Milling, Drilling, Uninteresting
Warmth Remedy: Normalizing, Annealing, Quenching Tempering
7.Warmth Therapy
Warmth therapy is carried out after sizzling functioning to renEPTTthe steel ideal for machining, and to meet up with the mechanical home ranges specified for the steel’s distinct apps.
8.ANNEALING
EPTs of 4140 quality could be annealed by transferring the parts straigEPTT from the forging procedure to a furnace held at a ideal temperature, in between 1450 and 1550 ordm F (790 and 840 ordm C), EPTT for a ideal time then furnace cooling, forming a structure appropriate for machining. This sort of treatment is greatest employed for parts with simple styles. If some locations of a forging will complete much colEPTTthan other folks then a uniform structure will not be acquired, in which case a spheroidizing anneal at around 1380 ordm F (750 ordm C) may possibly be used. It is secure to say that knowledge on your own will decide the best sort of annealing treatment method to be employed prior to machining.
9.NORMALIZING
This approach is outlined as heating a metal to a temperature earlier mentioned the ferrite to austenite transformation assortment and then cooling in air to a temperature nicely beneath this transformation range. This therapy may be carried out on solid goods as a conditioning therapy prior to last heat therapy. Normalizing also serves to refine the composition of forgings that migEPTT have cooled non-uniformly from their forging operation. The nominal normalizing temperature for 4140 quality is 1600 ordm F (870 ordm C), but manufacturing encounter may possibly necessitate a temperature both fifty ordm F (ten ordm C) earlier mentioned or underneath this determine. In fact when forgings are normalized prior to, say, carburizing or hardening and tempering, the upper variety of normalizing temperatures is used. When normalizing is the final warmth therapy, the reduced temperature variety is utilized.
