630 (1.4542) PH 17-4 grade stainless steel is being used more and more every day around the world. In general terms, 630 (1.4542) PH 17-4 grade stainless steel is among the stainless steels hardened by aging technique, also known as precipitation hardening, and can be considered as a synthesis of austenitic and martensitic stainless steels groups as a chromium / nickel alloy. Grade 630 stainless steel group has a number of features that stand out compared to other stainless steel grades. The most well-known of these is that stainless steels of this grade have both a high resistance to corrosion, as in austenitic stainless steels, and a good surface hardening when exposed to heat treatment, similar to martensitic stainless steels. The most preferred stainless steel in the 630 grade group is 630 (1.4542) PH 17-4 grade stainless steel, named after its 17% chromium and 4% nickel content.
Corrosion Resistance (* * * *)
630 (1.4542) PH 17-4 grade stainless steel is highly successful in terms of corrosion resistance and shows almost completely equivalent corrosion resistance compared to 304 grade stainless steel. Although it is a magnetizable stainless steel, its corrosion resistance is quite high.
Mechanical Properties (* * * * * *)
630 (1.4542) PH 17-4 grade stainless steel, which is in the group of stainless steels hardened by aging technique, is one of the stainless steels with the highest strength, which has a performance higher than 1000 MPA in tensile strength without heat treatment. 630 (1.4542) PH 17-4 grade stainless steel can also be subjected to heat treatment and the tensile strength of the steel can also exceed 1400 MPA after heat treatment.
Malleability (* * *)
Thanks to its copper content, 630 (1.4542) PH 17-4 grade stainless steel is susceptible to forging, but it is a very hard material and is not widely preferred and not recommended for forgeability.
Weldability Feature (* * *)
Grade 630 (1.4542) PH 17-4 stainless steel is not often preferred in welding environments and it will be difficult to find electrodes and welding wire for this type of stainless steel grade. Where welding is essential, grade 630 (1.4542) PH 17-4 stainless steel can be welded.
Machinability Feature (* * *)
630 (1.4542) PH 17-4 grade stainless steel has a very hard structure both internally and externally. Therefore, when processing is applied, difficulties are encountered due to hardness. Due to the fact that it is a material that undergoes many processes after production and these processes increase the processability, our company has never experienced any problems and stands out with the ease of processing the steel supplied. If 630 (1.4542) PH 17-4 quality stainless steel is to be heat treated, heat treatment must be applied after the machining process is completed.
630 (1.4542) PH 17-4 grade stainless steel continues to gain a worldwide reputation for its high mechanical strength, high hardness and good performance for its price. This type of stainless steel is widely preferred in pump and valve shafts, kitchen appliance production, petrochemical industry and chemical plants. On the other hand, 630 (1.4542) PH 17-4 grade stainless steel is a very frequently preferred steel type for the defense industry. It has high mechanical values and is suitable for long-lasting use.
630 - PH 17.4 Quality Stainless Steel Material List (1.4542) (Immediate Delivery from Stock)
Stainless Steel Rod: Min Diameter: 6mm -Max Diameter: 300mm
Stainless Steel Lama: Min Thickness: 25mm -Max Thickness: 200mm Min Width: 50mm -Max Width: 200mm
Stainless Steel Square: Min Dimension: 25x25mm -Max Size: 100x100mm
C: 0.07% Max
Mn: 1.0
Si: 0.7
P: %0.4
S: 0.03% Max
Cr: 15-17% Interval
Ni: 3-5%
Quality: 630 (1.4542) X5CrNiCuNb16-4
Tensile strength ~1090 MPa
Yield strength, (0.2%): ~950 MPa
Hardness, Rockwell (HB): 360 max
