ASTM 4340 Seamless Alloy Steel Tube
ASTM 4340 Seamless Alloy Steel Tube
ASTM 4340 is made from low alloy elements which possess good strength.This Tube is made with a high chemical composition of nickel, chromium, and molybdenum.This makes these tubes highly resistant to corrosion and oxidation in different environments.The Chromoly Tubing enables it to exist in high-pressures and elevated temperature systems.
♣ CHEMICAL COMPOSITION
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | V |
| 4340 | 0.38-0.43 | 0.15-0.35 | 0.60-0.80 | ≤0.035 | ≤0.040 | 0.70-0.90 | 1.65-2.00 | 0.20-0.30 | – |
♣ MECHANICAL PROPERTIES
| Steel Grade | Condition | Ultimate strength | Yield strength | Elongation | ||
| Mpa | ksi | Mpa | ksi | |||
| 4340 | HR | 621 | 90 | 483 | 70 | 89 |
| A | 517 | 75 | 586 | 85 | 81 | |
| N | 621 | 90 | 379 | 55 | 89 | |
♣ SIZE RANGE & DELIVERY CONDITION
| Size Range | OD：30-740 mm ID：22-500 mm Length:7-12.4 m | ||||||
| Delivery Condition | Hot rolled / Annealed/ Normalized / Q+T | ||||||
♣ PRODUCT CATALOG (Download)
Product Catalog-Steel tube (PDF)
