Show Supplier Material materials with Density of 7.9 g/cm³
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Show Supplier Material materials with Elastic modulus of 172 GPa
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Reduction of area
Show Supplier Material materials with Reduction of area of 65.0 %
650.0 - 830.0 MPa
Show Supplier Material materials with Tensile strength of 650.0 - 830.0 MPa
Coefficient of thermal expansion
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20 to 100°C
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20 to 200°C
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20 to 300°C
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20 to 400°C, 20 to 500°C
Specific heat capacity
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Show Supplier Material materials with Carbon of 0.03
18.0 - 19.0 %
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0.5 - 1.5 %
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8.0 - 9.5 %
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0.02 - 0.03 %
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UGIMA®-X 4307 has the same corrosion resistance as UGIMA® 4307. As such, it has a corrosion resistance similar to that of a standard 4307 / 304L in every respect, and therefore an excellent ability to withstand corrosion in many environments. However, UGIMA®-X 4307 is not recommended for use in marine environments and highly oxidizing chemical environments.
Special care must be taken when using UGIMA®-X 4307 in acid or chloride environments that are liable to pitting and crevice corrosion. It should not be used where components are shaped in such a way as to have areas where corrosive products might collect and corrode.
The use of UGIMA®-X 4307 is compatible with all fluids, lubricants, oils and greases applied in industry and machining. Optimum corrosion resistance is achieved on a surface free from residual machining oils or foreign particles (of iron for example).
UGIMA®-X 4307 is pickled in the same way as 1.4307/304L grades. This also applies to decontamination.
The corrosion resistance of a stainless steel depends on many factors related to the composition of the corrosive atmosphere (chloride concentration, presence or absence of oxidizing agents, temperature, pH, agitation or no agitation, and so on), as well as on the preparation of the material (surfaces free from metal particles, surface finish such as hardening, polishing, and so on). Precautionary measures should be taken for certain tests such as the saline mist test (ISO 9227): for example marking labels that might cause corrosion run-outs and reduce the test resistance time should not be used on the sample.
Due to the specific optimization of the entire oxide population in the grade, UGIMA®-X 4307 guarantees exceptional machinability performances for a 1.4307. Such performances are provided especially in very high or severe cutting conditions. Its performance is based on very good chip breaking, increased tool service lives and very good surface finish after machining.
To obtain the maximum benefit from the potential of this grade, in terms of parts and working environment, contact our Technical Support Department.
Chip Breaking Zones (CBZ):
In terms of chip breakability (CBZ tests, representative of the ability of the metal to limit machine downtime due to chips becoming entangled around the tools), the number of short chip cutting conditions for UGIMA®-X 4307 is slightly increased compared to those obtained with the already improved.
UGIMA® 4307. This is shown in the charts on the right side of the material page, which indicate the number of machining conditions producing short, medium and long chips (among those tested*) for two reference turning inserts and for each stainless steel grade tested.
* the conditions tested are as follows: at a constant cutting speed (200 m/min), the feed rate "f" is varied from 0.1 mm to 0.4 mm/rev, in increments of 0.05 mm/rev, and the cutting depth "ap" is varied from 0.5 mm to 4 mm, in increments of 0.5 mm; fifty-six conditions were tested using this method.
The heat treatment of UGIMA®-X 4307 consists of quenching the metal in water or air after keeping it for a holding time of approximately half an hour at a high temperature of between 1000 and 1100°C. This solution annealing heat treatment enables all traces of cold drawing to be removed whilst providing the steel with its lowest level of mechanical properties.
The forging of UGIMA®-X 4307 poses no particular problems:
UGIMA®-X 4307 can be welded without undue difficulty, with or without welding filler wire. If a welding filler wire is required, use grades E304L (coated electrodes), ER304L (GTAW), ER304LSi (GMAW).
In GMAW or GTAW welding, to avoid any risks of hot cracking, welding heat input should be limited (to avoid sulfur segregation responsible for the hot cracking phenomena occurring during the weld pool cooling). However, for laser welding, welding heat input must be maximized (to avoid too rapid cooling rates which bring about hot cracking of the welds by austenitic solidification). No heat treatment is required after welding.