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Hot rolling H-shape steel with Z-direction property for building and production method thereof

A production method and construction technology, applied in the direction of metal rolling, etc., to achieve the effect of improving the cleanliness of molten steel, stable and excellent product quality, and uniform grain size

Active Publication Date: 2013-10-02
LAIWU IRON & STEEL GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current H-shaped steel can not meet such requirements

Method used

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  • Hot rolling H-shape steel with Z-direction property for building and production method thereof
  • Hot rolling H-shape steel with Z-direction property for building and production method thereof
  • Hot rolling H-shape steel with Z-direction property for building and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1 and example 2

[0044] According to the method described above, produce the H-shaped steel according to the example 1 of the present invention and the example 2, wherein, list the composition and the production process of the H-shaped steel according to the example 1 of the present invention and the example 2 in detail in the table below various parameters in .

[0045] The chemical composition of the H-shaped steel of Table 1 Example 1 and Example 2 (unit: wt%)

[0046] Numbering

C

Si

mn

P

S

V

carbon equivalent

Example 1

0.16

0.25

1.40

0.019

0.007

0.013

0.41

Example 2

0.08

0.15

0.94

0.012

0.006

0.020

0.24

[0047] The converter smelting parameters of the H-shaped steel of table 2 example 1 and example 2

[0048]

[0049] The refining parameters of the H-shaped steel of table 3 example 1 and example 2

[0050]

[0051] The continuous casting parameters of the H-shaped ste...

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Abstract

The invention discloses a hot rolling H-shape steel with Z-direction property for building and a production method thereof. The method provided by the invention optimizes a smelting process and a rolling process, and performs strict product quality control means and production process control to obtain a steel type with excellent Z-direction property and mechanical properties. The H-shape steel comprises the following chemical components, by weight: 0.06%-0.18% of C, 0.10%-0.25% of Si, 0.90% -1.60% of Mn, 0.008% -0.020% of P, no more than 0.010% of S, no more than 0.10% of V, no more than 0.060% of Nb, no more than 0.030% of Ti, and the balance of iron and unavoidable impurities.

Description

technical field [0001] The invention belongs to the field of metallurgical engineering, and in particular relates to a hot-rolled H-shaped steel for construction with Z-direction performance and a production method thereof. Background technique [0002] H-shaped steel is a new type of economical construction steel. Its cross-sectional shape is economical and reasonable, and its mechanical properties are good. When rolling, the extension of each point on the cross-section is relatively uniform and the internal stress is small. Compared with ordinary I-beams, H-beams have the advantages of large section modulus, light weight, and metal saving, which can reduce the building structure by 30%-40%. Compared with concrete structures, H-shaped steel has the advantages of light weight and fast construction speed. At present, H-shaped steel can be divided into hot-rolled H-shaped steel and welded H-shaped steel according to different production processes. Welded H-beam refers to a t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/04C22C33/04B21B1/088
Inventor 张思勋韩文习王慧玉杨志杰王建军
Owner LAIWU IRON & STEEL GRP
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