Home > Alloy Steel > Alloy Steel Gr 11 Tubing
Alloy steel Gr 11 tubing, strengthened with chromium, molybdenum and nickel for outstanding strength, corrosion resistance and durability. Perfectly suited for extreme temperatures and pressures within the oil, gas, petrochemical, and electrical industries, its sturdy construction and adaptability in complex industrial applications guarantee reliability and efficiency.
| Designation | Nominal Chromium Content (%) | Nominal Molybdenum Content (%) |
| A387 Grade 11 | 1.25% | 0.50% |
| C | Mn | P | S | Si | Cr | Mo |
|---|---|---|---|---|---|---|
| 0.04 – 0.17 | 0.35 – 0.73 | 0.035 | 0.035 | 0.44 – 0.86 | 0.94 – 1.56 | 0.40 – 0.7 |
| A387 / SA387 Grade 11 | Class 1 | Class 2 |
|---|---|---|
| Tensile Strength (ksi) | 60-85 | 75-90 |
| Tensile Strength (MPa) | 415-585 | 485-620 |
| Yield Strength (ksi) | 35 | 45 |
| Yield Strength (MPa) | 240 | 310 |
| Elongation in 200mm (%) | 19 | 18 |
| Elongation in 50mm (%) | 22 | 22 |
| Reduction of area in % | – | – |
At Koasteel, we take pride in being the largest supplier and manufacturer in the New Zealand, delivering innovative solutions for every one of your piping requirements. Featuring modern production facilities strategically situated across the New Zealand, we maintain an extensive stock of more than 25,000 tons of top-grade materials on hand and ready to ship.
Reach out to us for a fast quote tailored to your needs.
We supply these Alloy Steel Gr 11 Tubing conforming to DIN, ISO, JIS or ANSI Standard.
Alloy Steel Gr 11 Tubing uses are as varied as the sectors they support, led mainly by the aerospace, railway, construction and automotive fields, along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, and more.
Yes, Alloy Steel Gr 11 Tubing is regarded as economical thanks to its blend of high strength, resistance to corrosion, and durability. Although its upfront cost may be greater than that of certain materials, its long service life and low maintenance needs lead to reduced lifecycle expenses. This makes it a favored option for industries looking for dependable, long-lasting tubing solutions that deliver considerable savings over time.
Mail: sales@koasteel.nz