Stainless Steel

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 strength
High toughness and impact resistance
Temperature resistance
High workability, including machining, stamping, fabricating and welding
Smooth surface finish that can be easily clean

Once the steel has become embrittled with sigma it’s potential to reclaim it by heating the steel to a temperature above the sigma formation temperature range, nonetheless, this is not at all times sensible. The drawback of grain boundary carbide precipitation was mentioned under intergranular corrosion.

In basic Grade 304 chrome steel is practically immune to sigma phase formation, however not so those grades with larger chromium contents with molybdenum or with higher silicon contents . These grades are all susceptible to sigma part formation if uncovered for long durations to a temperature of about 590 to 870°C.

duplex pipe fittings

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.

Their work hardening charges, nonetheless, are very low and, therefore, this can be very troublesome to achieve excessive power. All Ferritic and martensitic stainless steels could be process annealed by heating in the ferrite temperature range, or fully annealed by heating above the critical temperature within the austenite vary. Sub-crucial annealing can be carried out, usually in temperatures from 760 to 830°C.

• All metals could be work hardened upon chilly working, based mostly on the type of chrome steel grade.
• The relationship between the extent of cold working and the ensuing mechanical properties are represented in the chart of Figure 1.
• The fast chilly working fee of austenitic steels makes them appropriate for functions that contain excessive corrosion resistance and energy, such as spring manufacture in corrosive environments.
• Austenitic stainless steels are likely to work harden at a speedy price, however the cold working price of 400 series chrome steel is slightly greater than that of the plain carbon steels.

Standard��ASTM,AISI,SUS,JIS,EN,DIN,GB,ASME,ETC

Our stainless production range

However, they retain the mechanical properties, corresponding to corrosion resistance, formability and weldability, of their commonplace grades. These materials are commercially out there in commerce names of “Ugima”.

The low carbon variations of the standard austenitic grades have decreased strength at excessive temperature so aren’t usually used for structural purposes at elevated temperatures. “H” versions of each grade have higher carbon contents for these functions, which ends up in considerably greater creep strengths. “H” grades are specified for some elevated temperature purposes. A variety of producers have produced “improved machinability” variations of austenitic stainless-steel grades. These methods appear to have sufficient chip-breaking effect for considerably enhancing the machinability.

The relationship between the extent of cold working and the resulting mechanical properties are represented within the chart of Figure 1. The excessive-temperature strength of supplies is mostly expressed when it comes to their “creep strength” – the ability of the fabric to resist distortion over long term exposure to a excessive temperature. In this regard, the austenitic stainless steels are notably good. Design codes corresponding to Australian Standard AS1210 “Pressure Vessels” and AS4041 “Pressure Piping” also stipulate allowable working stresses of every grade at a range of temperatures.

The machining speed of “Ugima” is nearly 20% larger than that of other standard equivalent grades. four hundred sequence alloys are magnetic at room temperatures, and they will work harden at charges similar to that of low carbon steels.