TJC STEEL.
  • Home
  • Product
  • Contact
  • About
  • News

3Cr17Ni7Mo2N (318) Sulphur Resistant Stainless Steel- TJC STEEL.

3/7/2021

 
3Cr17Ni7Mo2N, austenitic stainless steel, codename 318, was developed in 1968 by Shanghai Research Institute of Materials, Shanghai No. 5 Iron and Steel Works, Chongqing Steel Works, Sichuan Petroleum Management and Design Institute [TJC STEEL]jointly for the Sichuan gas field natural gas contains more hydrogen sulfide, which causes serious corrosion to the equipment.

Component Specification
C 0.22~0.30 Cr 16.00~18.00 Ni 6.00~8.00
Si 0.80~1.60 P ≤0.035 Mo 2.00~2.50
Mn ≤1.00 S ≤0.30[TJC STEEL] N 0.15~0.22

 Mechanical Property
solution heat treatment 1130℃±10℃, holding for 2h, water quenching
strength of extension MPa ≥785
yield MPa ≥420
percentage elongation after fracture % ≥35
reduction of area% ≥40
hardness HRC ≤24

Material performance:
318 is a low cost material developed for hydrogen sulfide corrosion resistance. It can resist hydrogen sulfide uniform corrosion, sulfide stress cracking resistance, hydrogen embrittlement resistance, pitting resistance, reducing [TJC STEEL]medium corrosion resistance.

Applications:
The 318 is typically used to manufacture sulfur [TJC STEEL]resistant wellheads, valves, stems, and fasteners for applications where H2S partial pressures exceed 1MPa.

Comments are closed.

      TJC Steel News Center

    Company News, Market News and Order Cases About TJC Steel.

    Archives

    April 2025
    December 2024
    October 2024
    September 2024
    July 2024
    June 2024
    May 2024
    April 2024
    March 2024
    February 2024
    January 2024
    December 2023
    November 2023
    September 2023
    August 2023
    July 2023
    June 2023
    April 2023
    March 2023
    February 2023
    January 2023
    December 2022
    November 2022
    September 2022
    July 2022
    May 2022
    March 2022
    February 2022
    January 2022
    December 2021
    November 2021
    October 2021
    September 2021
    August 2021
    July 2021
    June 2021
    April 2021
    March 2021
    February 2021
    January 2021
    December 2020
    November 2020
    July 2020
    June 2020
    May 2020
    April 2020
    March 2020
    February 2020
    January 2020
    December 2019
    November 2019
    October 2019
    September 2019
    May 2019
    April 2019
    January 2019
    December 2018
    October 2018
    September 2018
    August 2018

    Categories

    All
    Stainless Coils/ Sheets
    Steel PIpe
    Steel Plates

    RSS Feed

HOME

ABOUT

PRODUCT

NEWS

CONTACT

TJC IRON& STEEL CO.,LTD
Tel:+86-371-86107816; +8613674998777 Email: [email protected]
HENAN SCALE IMP&EXP CO.,LTD
ZHENGZHOU ZHIYUAN IMP&EXP CO.,LTD
Copyright © 2015
  • Home
  • Product
  • Contact
  • About
  • News