Standards Manage Your Business
We Manage Your Standards
Standards Manage Your Business
We Manage Your Standards
Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
1.1 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.
TABLE 1 Continued | |||||||||||||||||
Grade | TP439 | . . . | . . . | TP430 Ti | TP | TP | 18Cr-2Mo | 29-4 | 29-4-2 | 26-3-3 | 25-4-4 | ... | . . . | . . . | . . . | . . . | TP468 |
UNS | S43035 | S43932 | S41500B | S43036 | S44627 | S44626 | S44400 | S44700 | S44800 | S44660 | S44635 | S44735 | S32803 | S40977 | S43940 | S42035 | S46800 |
Element | Composition, % | ||||||||||||||||
C, max | 0.07 | 0.030 | 0.05 | 0.10 | 0.01A | 0.06 | 0.025 | 0.010 | 0.010 | 0.030 | 0.025 | 0.030 | 0.015C | 0.03 | 0.03 | 0.08 | 0.030 |
Mn, max | 1.00 | 1.00 | 0.5–1.0 | 1.00 | 0.40 | 0.75 | 1.00 | 0.30 | 0.30 | 1.00 | 1.00 | 1.00 | 0.5 | 1.50 | 1.00 | 1.00 | 1.00 |
P, max | 0.040 | 0.040 | 0.03 | 0.040 | 0.02 | 0.040 | 0.040 | 0.025 | 0.025 | 0.040 | 0.040 | 0.040 | 0.020 | 0.040 | 0.040 | 0.045 | 0.040 |
S, max | 0.030 | 0.030 | 0.03 | 0.030 | 0.02 | 0.020 | 0.030 | 0.020 | 0.020 | 0.030 | 0.030 | 0.030 | 0.005 | 0.015 | 0.015 | 0.030 | 0.030 |
Si, max | 1.00 | 1.00 | 0.60 | 1.00 | 0.40 | 0.75 | 1.00 | 0.20 | 0.20 | 1.00 | 0.75 | 1.00 | 0.50 | 1.00 | 1.00 | 1.00 | 1.00 |
Status : Historical Standard Type: Main Document No: ASTM A268/A268M : 22 Document Year: 2022 Pages: 7
Life CycleACTIVE Currently Viewing Historical ASTM A268/A268M : 22 Historical Historical Historical Historical Historical Historical Historical Historical Historical Historical Historical Knowledge Corner Expand Your Knowledge and Unlock Your Learning Potential - Your One-Stop Source for Information! © Copyright 2024 BSB Edge Private Limited. | |||||||||||||||||
