Труба бесшовная astm a312 Tp304/304L Seamless steel Pipes
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ASTM A312 TP 304 / 304L stainless steel pipe is the most versatile and most commonly used stainless steel on the market. And these grades are austenitic chromium alloy, also known as “18/8” stainless steel, because the composition of the steel is 18% chromium and 8% nickel.
ASTM A312 is the Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes.
This specification covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service
ASTM A312 TP304L Pipes Materials and Manufacture
The pipe shall be manufactured by one of the following processes:
Seamless (SML) pipe shall be made by a process that does not involve welding at any stage of production.
Welded (WLD) pipe shall be made using an automatic welding process with no addition of filler metal during the welding process.
ASTM A312 TP304 / 304L Stainless Steel Seamless Pipe Chemical Composition
| C(max) | Si(max) | Mn(max) | P(max) | S(max) | Cr | Ni | Mo | Ti | |
| TP304/1.4301 | 0.080 | 1.00 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-10.5 |
ASTM A312 TP304 / 304L Pipe Tensile Requirements
| Grade | UNS Designation |
Tensile Strength, Min. ksi [MPa] | Yield strength, min ksi [MPa] | other |
| TP304 | S30400 | 75 [515] | 30 [205] | |
| TP304L | S30403 | 70 [485] | 25 [170] |
ASTM A312 TP304 / 304L Pipes Permitted Variations in Wall Thickness
In addition to the implicit limitation of wall thickness for seamless pipe imposed by the limitation on weight in Specification A999/A999M, the wall thickness for seamless and welded pipe at any point shall be within the tolerances specified in Table 3, except that for welded pipe the weld area shall not be limited by the “Over” tolerance.
ASTM A312 Stainless Steel Seamless Pipe Specification
How to order our Труба бесшовная astm a312 Tp304/304L Seamless steel Pipes?
76х2,0 труба нержавеющая бесшовная (TP 304L, ASTM A312, длина 6000)
