Stainless steel grade EN56C is inexpensive and highly corrosion resistant steel. It has good corrosion resistance in mild atmosphere as well as domestic and industrial environments. It is also resistant to dilute nitric acid, carbonic acid, ammonia, crude oil, detergent solutions, vinegar, food acids, several petroleum products, and steam.

Stainless steel grade EN56C is known to possess good strength and reasonable impact resistant properties in hardened and tempered conditions when compared with 440 grades.

The following sections will discuss in detail about stainless steel grade EN56C.

Chemical Composition

The chemical composition of stainless steel grade EN56C is outlined in the following table.

Machinability

Stainless steel grade EN56C is machinable both in hardened and tempered conditions such as turning, drilling, and bending; however it is recommended that machining in hardened condition should be avoided as far as possible.

Welding

Welding of stainless steel grade EN56C is easy. It is recommended that welding in annealed or hardened and tempered conditions should be avoided as it causes formation of brittleness, resulting in cold cracking due to contraction stresses.

Pre-heating and inter-pass temperature control during welding, followed by very slow cooling and post-weld annealing are good measures to take to prevent cracking.

Annealing

Annealing of this material can be performed by heating uniformly to 840-900°C (1544-1652°F) and held until the temperature is uniform throughout the section. Soaking and cooling is required.

Heat Treatment

Stainless steel grade EN56C has to be heated uniformly to 730-790°C (1346-1454°F) and held until temperature is uniform throughout the section.

Hardening

Stainless steel grade EN56C can be hardened by heating 950-1020°C (1742-1868°F) and held until temperature is uniform throughout the section. This should be followed by quenching in oil or air cooling. Tempering should be done when it is slightly warm.

Applications

Stainless steel grade EN56C is used in the following application areas:

• Surgical instruments
• Daggers and swords
• Budget knives and diving knives
• Haircutting scissors and domestic scissors
  

17/4PH Duplex 31803 F51 310 316 304 321 303 410 416 420 431 Stainless Steel Martensitic Austenitic Feritic 17/4PH 17-4PH ASTM A564 Grade 630 Condition A H1150+H1150 H1150M H900 UNS S17400 15/5PH 420S29 420S37 254SMO FV520B X42CR13 420S45 1.4021 1.4024 1.4028 1.4034 416S21 410S21 43S29 304 304L 303 304 316 316S31 321S31 440C 440B Stainless 310 Stainless  Duplex F51 1.4462 S31803 F55 1.4501 S32760 AISI 440B 440C A276 A182 1.4057 1.40051.4112 1.4006 3Cr12 1.4003 1.4845 1.4305 1.4306 1.4301 1.4404 EN58AN EN58 EN58E EN58J EN58AM EN56 EN56A EN56AM EN56B EN56C EN56D EN57 KE40A Custom 455 AMS 5643 254SMO Titanium 6AL 4V Plasma Cut Aluminium Bronze CA104 Nickel Alloys Monel 400 K500 Incoloy Alloy 825 925 800HT Inconel 625 725 718 601 660 A286 Non Ferrous Brass Aluminium Copper 904L

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