รายละเอียดเอกสาร

ผลิตภัณฑ์โลหะ

เอกสารมาตรฐาน

สหรัฐอเมริกา

ASTM

A268/A268M-22

Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

2022

7

ASTM Vol.01.01 (2023)

This specification2 covers a number of grades of nominal-wall-thickness, stainless steel tubing for general corrosion-resisting and high-temperature service. Most of these grades are commonly known as the “straight-chromium” types and are characterized by being ferromagnetic. Two of these grades, TP410 and UNS S 41500 (Table 1), are amenable to hardening by heat treatment, and the high-chromium, ferritic alloys are sensitive to notch-brittleness on slow cooling to ordinary temperatures. These features should be recognized in the use of these materials.

...