
ASTM A335 Grade Alloy Steel Tube is mostly utilized used in high-pressure and high-temperature applications, such as refineries, oil & gas industry, petrochemical plants, and power plants. This steel grade of tube has various levels of chromium, molybdenum, and many other elements that provide it distinctive properties, including high-temperature resistance, corrosion resistance, and increased strength. With a seamless manufacturing process, it is produced by heating and bending a compact steel billet into a cylindrical shape without any welding or joining that guarantee its high dimensional accuracy, smooth surface finish, and excellent mechanical properties. ASTM A335 Grade Alloy Steel Tube comes in different sizes, and finishes.
Specification :
Grade | Specification |
AISI4130 | AMS 2301, 6370, 6348, MIL-S-6758 |
AISI4140 | AMS 2301, 6382, 6349, MIL-S-5626 |
4330 | AMS 2301, 6427, MIL-S-8699, BMS-7-27 |
AS4330 | AMS 6427, 6411, MIL-S-8699, BMS-7-27, Melt, N&T AMS 2300, BMS-7-122 |
AISI4340 | AMS 2301, 6409, 6415, MIL-S-5000, BMS 7-28, DMS-1555 |
9310 | AMS 2300, 6260, 6267, 6265, MIL-S-7393C |
52100 | AMS 2301, 6440, MIL-S-7420 |
Alloy Steel Temperature Range
Low Alloy Steel Applications & Uses
AISI | UNS | C | Mn | P | S | Si | Cr | Ni | Cu | Others |
405 | S40500 | 0.08% | 1% | 0.04% | 0.03% | 1% | 11.5-14.5% | - | - | 1-3% |
430 | S43000 | 0.12% | 1% | 0.04% | 0.03% | 1% | 16-18% | - | - | - |
Properties of Low Alloy Steel
AISI | UNS | Typical Mechanical Strength | ||||
Tensile | Yield | Elongation | Reduction of | Brinell | ||
4130 | G41300 | 80 | 56 | 28 | 57 | 149 |
4140 | G41400 | 150 | 90 | 20 | 45 | 285 |
4330 | G43300 | 125 | 100 | 15 | 30 | 250-325 |
4340 | G43400 | 110 | 66 | 23 | 49 | 197 |