Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
Table 1 Chemical Requirments
0.12
Grade TP405 TP410 TP429 TP430 TP443 TP446-1 TP446-2A ... TP409 TP439
UNS Designation S40500 S41000 S42900 S43000 S44300 S44600 S44600 S40800 S40900 S43035 Element Composition, %
C, Max 0.08 0.15 0.12 0.12 0.20 0.20 0.08 0.08 0.07 Mn, Max 1.00 1.00 1.00 1.00 1.00 1.50 1.50 1.00 1.00 1.00 P, Max 0.040 0.040 0.040 0.040 0.040 0.040 0.040 0.045 0.045 0.040 S, Max 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.045 0.030 0.030 Si, Max 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Ni 0.50 max ... ... ... 0.75 max 0.75 max 0.50 max 0.80 max 0.50 max 0.50 max Cr 11.5-14.5 11.5-13.5 14.0-16.0 16.0-18.0 18.0-23.0 23.0-27.0 23.0-27.0 11.5-13.0 10.5-11.7 17.0-19.0 Mo ... ... ... ... ... ... ... ... ... ... Al 0.10-0.30 ... ... ... ... ... ... ... ... 0.15 Cu ... ... ... ... 0.90-1.25 ... ... ... ... ... N ...
0.25 0.25
0.04 Ti ...
12XC Min;1.10 max 6XC min; 0.75 max 0.20+4(C+N)min;1.10 max
A For small diameter or thin walls, or both, tubing, where many drawing passes are required, a carbon maximum of 0.015 % is necessary. Small outside diameter tubes are defined as those less than 0.500 in. [12.7 mm] in outside diameter and light wall tubes as those less than 0.049 in. [1.2 mm] in average wall thickness (0.040 in. [1 mm] in minimum wall thickness).
1, General Requirements
Material furnished under this specification shall conform to the applicable requirements of Specification A1016/A1016M unless otherwise provided herein.
2, Manufacture
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3, Surface Condition
considered as scale. Any special finish requirements shall be subject to agreement between the manufacturer and the purchaser.
4, Mechanical Tests Required
1) Tension Tests
2) Flange Test (for Welded Tubes) (For tubes over 8 in. [203.2 mm] in outside diameter, or tubes with wall thickness 3⁄8 in. [9.52 mm] and over, the flattening test may be performed instead of the flange test unless the flange test is specified in the purchase order.)
3) Hardness Test
4) Reverse Flattening Test
MW Metal offers both Eddy current test and air underwater test for 100% tubes.