We produce ASTM/ASME Grade 304, Grade 304L,304h, 316, 316L, 316H, 316TI, 321, 321H, 309S, 309H, 310S, 310H, 410S, 2205, 904L, 2507, 254, gh3030, 625, 253MA, S30815, 317L, Type 317, 316lN, 8020, 800, 800H, C276, S32304 and others special requirement stainless steel grade.
SCC resistance of 2RK65 in comparison to ASTM 304 and AISI 316 forms of steels in neutral aerated chloride environments. It is essential to pay attention to the fact that the residual stresses around a weld that has not been warmth handled often equal the proof strength of the material. These stresses correspond to utilized stress/tensile strength ratios of solely zero.3–0.5, which is sufficient to exceed the edge stress and thereby trigger stress corrosion cracking in ASTM 304 and ASTM 316.
The most harmful of those impurities are chlorides, Cl-, and fluorides in free kind, F-. Sandvik 2RK65 has been used with success in lots of functions in phosphoric acid crops and for the dealing with of technical acid. However, for the severest corrosion circumstances, Sanicro® 28, which was developed especially for phosphoric acid functions, provides superior corrosion resistance.
The alloy Sanicro® 28 provides higher resistance against stress corrosion cracking and in addition basic corrosion than is the case for Sandvik 2RK65™. Sandvik 2RK65™ HV is a vacuum arc-remelted excessive-alloy austenitic stainless steel with very high cleanliness leading to good polishability.
- A nickel content material of 25%, as is the case for Sandvik 2RK65™, is enough to provide superb resistance under working situations.
- At excessive temperatures, above about 100oC (212°F), chloride contents as little as in the ppm-vary (10-four %) are sufficient to trigger stress corrosion cracking in these steels.
- At excessive temperatures, above about 100oC, chloride contents as low as in the ppm-vary (10-4 %) are enough to cause stress corrosion cracking in these steels.
- Ordinary austenitic steels of the AISI 304 and AISI 316 varieties are prone to emphasize corrosion cracking in chloride-bearing solutions at temperatures above about 60°C (140oF).
- Ordinary austenitic steels of the ASTM 304 and ASTM 316 types are susceptible to emphasize corrosion cracking (SCC) in chloride-bearing options at temperatures above about 60°C (140oF).
Stock Thickness: 0.1-200.0mm
Production thickness: 0.5.0-200mm
200 series: 201,202
300 series: 301,304,304L,304H,309,309S,310S,316L,316Ti,321,321H,330
400 series: 409,409l,410,420J1,420J2,430,436,439,440A/B/C
Isocorrosion diagram for Sandvik 2RK65, Sanicro 28 and ASTM 316L in deaerated sulfuric acid at a corrosion fee of zero.1 mm/yr (four mpy) in stagnant solution. Isocorrosion diagram 0.1 mm/yr (4 mpy) for Sandvik 2RK65 and ASTM 316L in naturally aerated sulfuric acid of chemical purity. Typical purposes for Sandvik 2RK65™ are found in oil refineries and inside the chemical and petrochemical trade. Sandvik 2RK65™ is also used within the pulp and paper industry, the mineral and metallurgical business, the meals business, in seawater cooling and in lots of other fields. We have a dedicated ‘clean’ store for our chrome steel work and we concentrate on working with exotic grades of stainless-steel.
The grade can also be characterised by excellent overall corrosion resistance and good weldability. The machining of Sandvik 2RK65™, as with other stainless steels, requires an adjustment to, tooling information and machining method, in order to obtain passable results. Compared to Sanmac® 316/316L, the cutting speed must be lowered by approximately forty-forty five%, when turning Sandvik 2RK65™ with coated, cemented carbide instruments.
In order to take care of the integrity of the chrome steel and stop any cross contamination we don’t work with different materials in this shop. Because of the excessive contents of nickel, chromium and molybdenum the resistance to common corrosion is above that of AISI 316L.
The information should be considered in the knowledge that it may not be relevant for thick sections, corresponding to forgings. Sandvik 2RK65, also called 2RK65, is a excessive-alloy austenitic stainless steel of ‘904L’ kind. The grade is meant for use beneath severe corrosion situations throughout the course of trade. ISO S Cu L wire or strip electrodes are beneficial for overlay welding of tube sheets and excessive-strain vessels in cases the place corrosion resistance, equal to that of Sandvik 2RK65™, is required. Technical phosphoric acid manufactured via the ‘wet’ method accommodates various amounts of impurities from the beginning materials, the phosphate rock.
We have thousands tons stock of stainless steel sheet and coil with various size and grade,mainly include austenitic stainless steel, martens stainless steel (including precipitation hardened stainless steel sheet & coil), ferritic stainless steel, and duplex stainless steel.
Characteristics of Stainless Steel Sheet and Plate:
High corrosion resistance
High toughness and impact resistance
High workability, including machining, stamping, fabricating and welding
Smooth surface finish that can be easily clean