ASTM A312 253MA Seamless Pipe
ASTM A312 253MA Seamless Pipe specifies the ASTM A312 253MA Seamless Pipe standard for welded Austenitic stainless Steel Seamless pipe. ASTM A213 TP304 is an austenitic stainless steel, a type of AISI 304 steel, with good corrosion resistance and welding properties. AISI 2330 is an alloy steel with high strength and toughness, whose structure and properties can be adjusted by different heat treatment processes.
This steel is commonly used in aerospace, automotive, oil and gas extraction and is used to make pipes, cylinders, aircraft components, engine parts and more. In the deep processing process, it is necessary to pay attention to the selection of appropriate tools and cutting parameters, as well as the appropriate heat treatment process to ensure an efficient processing process and good surface quality.
ASTM A312 Austenitic Stainless Steel Seamless Steel Pipe Welded steel pipe coefficients are as follows:
| Project standard | ASTM A312/A312M | ||
| Grade | TP304 | TP304L | |
| TP316 | TP316L | ||
| TP317 | TP317L | ||
| TP347 | TP310H* | ||
| -- | TP321H | ||
| Yield strength a0.2(Mpa) | 170;≥205 | ||
| Tensile Strength o 0.2(Mpa) | 485;≥515 | ||
| Elongation o5(%) | ≥35 | ||
| Flattening test (mm) | H=1.09t/(0.09+t/D) and test for integrity | ||
| Flaring test | -- | ||
| Grain size | ASTM E112 6#or6#上 | ||
| Hydraulic test (Mpa) | D | Pmax | ASTM A530 D≤270mm P=2Rt/D Equation R=50% σ0.2 |
| ≥88.9 | 17 | ||
| ＞88.9 | 19 | ||
| Crystal rot test | ASTM A262 E (Additional Requirements) | ||
| Nondestructive testing | ASTM E13 E309 E426 | ||
| Heat treatment | demand | ||
| Outside diameter deviation (mm) | Outside diameter | Allowable deviation | |
| >10.3-48.3 | +0.40/-0.80 | ||
| >48.3-114.3 | +0.80/-0.08 | ||
| >114.3-219.1 | +1.60/-0.80 | ||
| >219.1-457.2 | +2.40-0.80 | ||
| >457.2-660.4 | +3.20/-0.80 | ||
| > 660.4-864 | +4.00/-0.08 | ||
| > 864-1219.2 | +4.80/-0.08 | ||
| Wall thickness deviation (mm) | + Not required /-12.5%t | ||
| Bending degree (mm/m) | Reasonable straightness | ||
| Other requirements | HRB<90 | ||
Equivalent Grades of ASTM A312 253MA SS Pipe
| Grade | UNS | WERKSTOFF NR. | EN | SS |
| 253MA(UNS S30815) | S30815 | 1.4835 | X9CrNiSiNCe21-11-2 | 2368 |
Composition ranges for ASTM A213 253MA S30815 grade stainless steel
| Grade | – | C | Mn | Si | P | S | Cr | Ni | N | Ce |
| 253MA / S30815 | min. max. | 0.05 0.10 | – 0.80 | 1.40 2.00 | – 0.040 | – 0.030 | 20.0 22.0 | 10.0 12.0 | 0.14 0.20 | 0.03 0.08 |
Products Description
| pecifications | ASTM / ASME A312 / SA312 |
| Seamless Pipes & Tubes Sizes | 1 / 2" NB - 8" NB |
| Welded Pipes & Tubes Sizes | 6" NB - 24" NB |
| Outer Diameter | 6.0-630mm |
| Schedule | SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS |
| Thickness | 0.3mm – 50 mm |
| Type | Seamless / ERW / Welded/ Fabricated |
| Form | Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes |
| Length | Single Random, Double Random & Cut Length |
| End | Plain End, Beveled End, Treaded |
More grades we can supply :
904 stainless steel tube pipes
304 stainless steel bar
Hot Tags: astm a312 253ma seamless pipe, China, manufacturers, suppliers, factory, 410 Stainless Steel Wire, 444 ferritic sainless steel, 316Ti stainless steel, 1215 Free Cutting Steel Bar, 316 Stainless Steel Tube, 4J29 Precision Alloy Steel bar