347 Stainless Steel Round Bar
347 stainless steel round steel belongs to the American Standard austenitic stainless steel, the executive standard: astm a240/a240m-2018.
347 belongs to high-carbon niobium-containing Cr-Ni austenitic stainless steel, due to the stabilising element Nb, its resistance to intergranular corrosion and resistance to intergranular stress corrosion of polysulfuric acid is good, in acid, alkali, salt and other corrosive media, its corrosion resistance line is similar to the 18-8 austenitic stainless steel with Ti, 347 stainless steel round steel is widely used in the boiler, power generation, petroleum, chemical industry, synthetic fibres, food, paper and other industries. It is used in large boiler superheater tube, reheater tube, steam pipe and petrochemical heat exchanger.
347 solid round bar steel chemical composition
| Grade | Mn | C | P | Si | Cr | S | Ni | Co + Ta | Fe |
| 347 | 2 maximum | 0.08 maximum | 0.045 maximum | 0.75 maximum | 17 – 20 | 0.03 maximum | 9 – 13 | 10xC min 1.00 maximum |
62.74 |
347 solid steel round bar mechanical property
| Elongation | Density | Tensile Strength | Melting Point | Yield Strength (0.2%Offset) |
| 40 % | 8 g/cm3 | MPa – 515, Psi – 75000 | 1454 °C (2650 °F) | MPa – 205, Psi – 30000 |
347 round metal rod sizes
| Size(mm) | WT PER MTR IN KGS | WT PER FEET IN KGS |
|---|---|---|
| 16 | 1.60 | 0.49 |
| 18 | 2.02 | 0.62 |
| 20 | 2.49 | 0.76 |
| 22 | 3.02 | 0.92 |
| 25 | 3.90 | 1.19 |
| 28 | 4.89 | 1.49 |
| 28 | 4.89 | 1.49 |
| 30 | 5.61 | 1.71 |
| 32 | 6.38 | 1.95 |
| 36 | 8.08 | 2.46 |
| 38 | 9.00 | 2.74 |
| 40 | 9.97 | 3.04 |
| 45 | 12.62 | 3.85 |
| 50 | 12.62 | 4.75 |
| 56 | 19.55 | 8.96 |
| 60 | 22.44 | 6.84 |
| 65 | 26.34 | 8.03 |
| 70 | 30.54 | 9.31 |
| 75 | 35.06 | 10.69 |
| 80 | 39.89 | 12.16 |
| 90 | 50.49 | 15.39 |
| 100 | 62.34 | 19 |
347 stainless steel product details
347 stainless steel is in accordance with the United States ASTM standard production out of a grade of stainless steel.347 stainless steel pipe is equivalent to China's 0Cr18Ni11Nb stainless steel.
In the air or chemical corrosion medium can resist corrosion of a high-alloy steel, stainless steel is a beautiful surface and good corrosion resistance, do not have to go through the surface treatment such as colour plating, and play the inherent surface properties of stainless steel, the use of a variety of aspects of steel, usually called stainless steel. The representative performance of 13 chromium steel, 18-8 chromium-nickel steel and other high-alloy steel.
From the metallographic point of view, because the stainless steel contains chromium and the surface of the formation of a very thin film of chromium, this film is separated from the steel invasion of oxygen to play a role in corrosion resistance. In order to maintain the corrosion resistance inherent in stainless steel, steel must contain more than 12% chromium.
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