Development of Grade 110SS thick-wall Seamless Pipe which Ｒesistant to Cracking in H2  S-Containing Environments

Li Yongdeng; Peng Jun; Tang Ke; Xiang Xin

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Development of Grade 110SS thick-wall Seamless Pipe which Ｒesistant to Cracking in H2 S-Containing Environments

更新时间：2025-10-28

- Development of Grade 110SS thick-wall Seamless Pipe which Ｒesistant to Cracking in H2 S-Containing Environments
- Special Steel Vol. 43, Issue 1, Pages: 78-81(2022)
- 作者机构：
  
  大冶特殊钢有限公司，
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：11 November 2021，
  
  Online First：18 March 2022，
  
  Published：18 March 2022
- 稿件说明：
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Li Yongdeng, Peng Jun, Tang Ke, et al. Development of Grade 110SS thick-wall Seamless Pipe which Ｒesistant to Cracking in H2 S-Containing Environments[J]. Special Steel, 2022, 43(1): 78-81.
DOI：

Li Yongdeng, Peng Jun, Tang Ke, et al. Development of Grade 110SS thick-wall Seamless Pipe which Ｒesistant to Cracking in H2 S-Containing Environments[J]. Special Steel, 2022, 43(1): 78-81. DOI：

摘要

开发的110SS钢(/%:0.28～0.33C

0.20～0.30Si

0.60～1.00Mn

≤0.015P

≤0.005S

1.20～1.45Cr

0.65～0.85Mo

0.01～0.05Al

0.01～0.05Ti

0.01～0.05Nb

0.01～0.10V)Φ325 mm×55 mm厚壁管的生产流程为BOF-LF-RH-CC-ASSEl rolling。通过控制BOF出钢C≥0.03%

LF渣碱度3.0～4.0

RH真空时间≥30min

连铸钢的过热度≤15℃

拉速0.30～0.50 m/min

钢管淬火温度880℃

回火温度650℃时

得到产品夹杂物尺寸≤20μm、屈服强度760～820 MPa

厚壁无缝钢管的抗硫化氢应力耐腐蚀性能满足标准要求。

Abstract

Developmental 110SS steel Φ325 mm × 55 mm thick-wall seamless pipe ( /% ：0. 28 ~0.33C

0. 20 ~ 0.30Si

0.60~1.00Mn

≤0.015P

≤0. 005S

1. 20 ~ 1.45Cr

0. 65 ~0.85Mo

0.01 ~ 0.05Al

0.01 ~0.05Ti

0. 01 ~ 0. 05Nb

0. 01 ~0. 10V ) is produced by process of BOF-LF-RH-CC-ASSE1 rolling. By controlling BOF end point [C] ≥ 0. 03%

LF refining slag basicity 3. 0 ~4. 0

HR vacuum treating for ≥30 min

CC steel overheating ≤15 ℃

continuous casting speed 0

30 ~ 0. 50 m/min

steel pipe quenching temperature at 880 ℃ and tempering at 650 ℃

the product inclusion size is less than 20 μm，yield strength is 760 ~820 MPa

at that time

the thick wall seamless steel pipe meets the requirements of hydrogen sulfide-proof.

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