Unlock instant, AI-driven research and patent intelligence for your innovation.

Corrosion-resistant steel for storage rack stand columns and production process of corrosion-resistant steel

A technology of corrosion-resistant steel and shelf columns, which is applied in the field of corrosion-resistant steel for shelf columns and its production process, and can solve the problems of less research on grain size control, low strength, and inability to effectively improve tensile strength and high yield strength. question

Inactive Publication Date: 2015-07-22
SUZHOU KESHENG STORAGE & LOGISTICS EQUIP
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, there were many domestic studies on the microstructure control of stainless steel forging forming, but there were few studies on the microstructure and grain size control of forging billet rolling forming, that is, the forging and rolling forming process.
Austenitic stainless steel has high corrosion resistance, good cold workability and good toughness, plasticity, weldability and non-magnetism, but the general strength is low, and the tensile strength and high yield strength cannot be effectively improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This example is a kind of corrosion-resistant steel for shelf columns, the mass percentage of its chemical composition is: C: 0.18%, Si: 0.6%, Mn: 0.508%, Cr: 8.6%, Ni: 4.4%, Mo: 0.11% , Nb: 0.068%, V: 0.07%, Ti: 0.015%, W: 0.25%, B: 0.015%, Al: 0.007%, Y: 0.01%, lanthanide rare earth: 0.021%, the balance is Fe and cannot be eliminated impurities; the total content of impurities is ≤0.1%, among which, P≤0.015%, S≤0.008%, H≤0.003%, O≤0.001%.

[0045] The mass percentages of the lanthanide rare earth components are: cerium: 4%, europium: 5%, terbium: 10%, gadolinium: 15%, praseodymium: 12%, holmium: 4%, erbium: 2%, and the balance is Lanthanum, the sum of the above components is 100%.

[0046] The production process of the corrosion-resistant steel for the shelf column of the present embodiment, the production method includes the following operations:

[0047] Smelting process: Converter smelting, fully decarburized by top blowing; RH or VD vacuum degassing treatment an...

Embodiment 2

[0051] In this embodiment, a kind of corrosion-resistant steel for shelf columns, the mass percentage of its chemical composition is: C: 0.23%, Si: 0.7%, Mn: 0.55%, Cr: 8.8%, Ni: 4.6%, Mo: 0.22%, Nb: 0.07%, V: 0.08%, Ti: 0.016%, W: 0.35%, B: 0.019%, Al: 0.008%, Y: 0.04%, lanthanide rare earth: 0.026%, the balance is Fe and non-eliminable Impurities Impurities; the total content of ≤0.1%, of which, P≤0.015%, S≤0.008%, H≤0.003%, O≤0.001%.

[0052] The mass percentages of the lanthanide rare earth components are: cerium: 8%, europium: 8%, terbium: 11%, gadolinium: 18%, praseodymium: 14%, holmium: 6%, erbium: 7%, and the balance is Lanthanum, the sum of the above components is 100%.

[0053] The production process of the corrosion-resistant steel for the shelf column of the present embodiment, the production method includes the following operations:

[0054] Smelting process: Converter smelting, fully decarburized by top blowing; RH or VD vacuum degassing treatment and LF treatm...

Embodiment 3

[0058] This example is a kind of corrosion-resistant steel for shelf columns, the mass percentage of its chemical composition is: C: 0.3%, Si: 0.8%, Mn: 0.58%, Cr: 9.2%, Ni: 5.6%, Mo: 0.32% , Nb: 0.08%, V: 0.09%, Ti: 0.017%, W: 0.45%, B: 0.023%, Al: 0.009%, Y: 0.05%, lanthanide rare earth: 0.033%, the balance is Fe and cannot be eliminated impurities; the total content of impurities is ≤0.1%, among which, P≤0.015%, S≤0.008%, H≤0.003%, O≤0.001%.

[0059] The mass percentages of the lanthanide rare earth components are: cerium: 11%, europium: 10%, terbium: 13%, gadolinium: 22%, praseodymium: 15%, holmium: 9%, erbium: 10%, and the balance is Lanthanum, the sum of the above components is 100%.

[0060] The production process of the corrosion-resistant steel for the shelf column of the present embodiment, the production method includes the following operations:

[0061] Smelting process: Converter smelting, fully decarburized by top blowing; RH or VD vacuum degassing treatment an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses corrosion-resistant steel for storage tack stand columns. The corrosion-resistant steel comprises the following chemical components in percentage by weight: 0.18-0.3% of C, 0.6-0.8% of Si, 0.50-0.58% of Mn, 8.6-9.2% of Cr, 4.4-5.6% of Ni, 0.11-0.32% of Mo, 0.06-0.08% of Nb, 0.07-0.09% of V, 0.015-0.017% of Ti, 0.25-0.45% of W, 0.005-0.023% of B, 0.007-0.009% of Al, 0.01-0.05% of Y, 0.021-0.033% of lanthanide rare earth and the balance of Fe and inevitable impurities. By virtue of the corrosion-resistant steel, stainless steel forgings obtain small, complete and high-dislocation-density austenite structures, so that the high corrosion resistance, cold workability and flexibility can be achieved; meanwhile, the tensile strength is relatively high and the yield strength is high.

Description

technical field [0001] The invention relates to a corrosion-resistant steel and a production process thereof, in particular to a corrosion-resistant steel for shelf columns and a production process thereof. Background technique [0002] The development of stainless steel has a history of nearly 100 years. With the expansion of the use of stainless steel and the continuous increase of varieties, its performance is also expanding, and the requirements for quality of use are constantly improving. The current problem to be solved for stainless steel is how to solve the thermal stability of the material and the deterioration of post-welding and thermal processing, thermoforming plasticity, toughness and corrosion resistance caused by the increase of chromium and molybdenum content. In the past, there were many domestic studies on the microstructure control of stainless steel forging forming, but there were few studies on the microstructure and grain size control of forging billet...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22C38/54C21D8/02
Inventor 王正勇邢婷
Owner SUZHOU KESHENG STORAGE & LOGISTICS EQUIP