ASME SA 479 304 Stainless Round Bar
If you are looking for a high-quality stainless steel round bar, then ASME SA 479 Gr 304 stainless round bar is a great choice. ASTM A479 is a specification established by the American Society for Testing and Materials (ASTM) that covers the requirements for stainless steel bars and shapes for use in boilers and pressure vessels, as well as other general applications. This round bar is made from AISI 304 stainless steel, which is known for its excellent resistance to corrosion and high temperature. In addition, this round bar is made to precise tolerances, ensuring that it will meet even the most demanding requirements for use in a range of applications.
ASME SA 479 Type 304 Stainless Steel Round Bar Tolerances
| ISO Tolerance Designation |
Nominal Diameter of Tool (mm) | ||||||||
| <=3 | >3-6 | >6-10 | >10-18 | >18-30 | >30-50 | >50-80 | >80-120 | >120-180 | |
| Tolerance ( Unit = 0.001 mm ) | |||||||||
| d9 | -65 | -90 | -116 | -143 | -182 | -222 | -274 | -327 | -390 |
| d11 | -100 | -135 | -170 | -210 | -260 | -320 | -390 | -460 | -540 |
| e8 | -42 | -58 | -72 | -91 | -113 | -139 | -166 | -198 | -233 |
| e9 | -53 | -70 | -86 | -107 | -132 | -162 | -194 | -231 | -270 |
| f8 | -26 | -38 | -48 | -59 | -73 | -89 | -106 | -126 | -149 |
| f9 | -37 | -50 | -62 | -75 | -92 | -112 | -134 | -159 | -186 |
| h6 | 0 -6 | 0 -8 | 0 -9 | 0 -11 | 0 -13 | 0 -16 | 0 -19 | 0 -22 | 0 -25 |
| h7 | 0 -10 | 0 -12 | 0 -15 | 0 -18 | 0 -21 | 0 -25 | 0 -30 | 0 -35 | 0 -40 |
| h8 | 0 -14 | 0 -18 | 0 -22 | 0 -27 | 0 -33 | 0 -39 | 0 -46 | 0 -54 | 0 -63 |
| h9 | 0 -25 | 0 -30 | 0 -36 | 0 -43 | 0 -52 | 0 -62 | 0 -74 | 0 -87 | 0 -100 |
| h10 | 0 -40 | 0 -48 | 0 -58 | 0 -70 | 0 -84 | 0 -100 | 0 -120 | 0 -140 | 0 -160 |
| h11 | 0 -60 | 0 -75 | 0 -90 | 0 -110 | 0 -130 | 0 -160 | 0 -190 | 0 -220 | 0 -250 |
| h12 | 0 -100 | 0 -120 | 0 -150 | 0 -180 | 0 -210 | 0 -250 | 0 -300 | 0 -350 | 0 -400 |
| h13 | 0 -140 | 0 -180 | 0 -220 | 0 -270 | 0 -330 | 0 -390 | 0 -460 | 0 -540 | 0 -630 |
| js11 | +/- 30 | +/- 37 | +/- 45 | +/- 55 | +/- 65 | +/- 80 | +/- 95 | +/- 110 | +/- 125 |
| js12 | +/- 50 | +/- 60 | +/- 75 | +/- 90 | +/- 105 | +/- 125 | +/- 150 | +/- 175 | +/- 200 |
| js14 | +/- 125 | +/- 150 | +/- 180 | +/- 215 | +/- 260 | +/- 310 | +/- 370 | +/- 435 | +/- 500 |
| js16 | +/- 300 | +/- 375 | +/- 450 | +/- 550 | +/- 650 | +/- 800 | +/- 950 | +/- 1100 | +/- 1250 |
| k9 | +25 0 | +30 0 | +36 0 | +43 0 | +52 0 | +62 0 | +74 0 | +87 0 | +100 0 |
| k10 | +40 0 | +48 0 | +58 0 | +70 0 | +84 0 | +100 0 | +120 0 | +140 0 | +160 0 |
| k11 | +60 0 | +75 0 | +90 0 | +110 0 | +130 0 | +160 0 | +190 0 | +220 0 | +250 0 |
| k12 | +90 0 | +120 0 | +150 0 | +180 0 | +210 0 | +250 0 | +300 0 | +350 0 | +400 0 |
| H5 | +4 0 | +5 0 | +6 0 | +8 0 | +9 0 | +11 0 | +13 0 | +15 0 | +18 0 |
| H6 | +6 0 | +8 0 | +9 0 | +11 0 | +13 0 | +16 0 | +19 0 | +22 0 | +25 0 |
| H7 | +10 0 | +12 0 | +15 0 | +18 0 | +21 0 | +25 0 | +30 0 | +35 0 | +40 0 |
| H11 | +60 0 | +75 0 | +90 0 | +110 0 | +130 0 | +160 0 | +190 0 | +220 0 | +250 0 |
| H12 | +100 0 | +120 0 | +150 0 | +180 0 | +210 0 | +250 0 | +300 0 | +350 0 | +400 0 |
H9 Tolerance:
The h9 tolerance class specifies that the diameter of the round bar must be within a tolerance range of +0 to -0.052 mm. This means that the diameter of the round bar can vary slightly above or below the nominal diameter, ensuring tight dimensional control for precise fitment and compatibility with mating components.
To ensure that ASME SA 479 304 stainless round bar meets these precise tolerances, it is made according to strict manufacturing standards and is subject to rigorous quality control processes. This ensures that the finished round bar will meet or exceed the necessary specifications for use in a wide range of applications. From construction and manufacturing to food processing and medical equipment, this round bar is suitable for many different industries and uses.
Stainless Steel 304 Material Suppliers
SS304 has good corrosion resistance under general atmospheric environment, chemical media and other conditions, and can effectively resist corrosion and oxidation. Our company is a professional and reliable one-stop service manufacturer supplier exporter. At the same time, we can also provide 304 stainless steel plates, plates, pipes, tubes, flanges and fittings. Contact us | market@htpipe.com for more information and quotation for free!





