Compared to carbon steel, low-alloy steel has additional alloying elements that improve certain properties such as weldability, hot strength or formability. From a technical point of view, low-alloy steel has a total of 1 to 5% of additional alloying elements. Low-alloy steels are used in the chemical and petrochemical industries, among others.
| Tube OD in / mm |
Thickness WT |
ASTM A 199/ A 213 T5 |
ASTM A 199/ A 213 T9 |
ASTM A 199/ A 213 T11 |
Tube OD mm |
Thickness WT mm |
|
|---|---|---|---|---|---|---|---|
| BWG/SWG | INCH | ||||||
| 3/4" | 14 / 14 | 0.083 / 0.080 | x2 | x | x2 | 19,05 mm | 2,108 / 2,032 mm |
| 3/4" | 12 / 12 | 0.109 / 0.104 | x | x | 19,05 mm | 2,769 / 2,642 mm | |
| 1 | 14 / 14 | 0.083 / 0.080 | x | 25,40 mm | 2,108 / 2,032 mm | ||
| 1 | 12 / 12 | 0.109 / 0.104 | x2 | x | x | 25,40 mm | 2,769 / 2,642 mm |
| 1 - 1/4" | 12 / 12 | 0.109 / 0.104 | x | 31,75 mm | 2,769 / 2,642 mm | ||
| 1 - 1/4" | 10 / 10 | 0.134 / 0.128 | x | 31,75 mm | 3,404 / 3,251 mm | ||
| 1 - 1/2" | 12 / 12 | 0.109 / 0.104 | x | 38,10 mm | 2,769 / 2,642 mm | ||
| 1 - 1/2" | 10 / 10 | 0.134 / 0.128 | x | 38,10 mm | 3,404 / 3,251 mm | ||
1) Average wall thickness2) High Quality available
| Standard Grade | ASTM A 213 T5 |
ASTM A 199 T5 |
DIN 17176 12 CrMo 195 |
BS3604 Part 1 Grade 625 |
NFA 49-215 TU Z 10 CD5 05 |
ASTM A 213 T9 |
ASTM A 213 T11 |
|---|---|---|---|---|---|---|---|
| C | 0,150 max. | 0,150 max. | 0,080 - 0,150 | 0,150 max. | 0,170 max. | 0,150 max. | 0,050 - 0,150 |
| Mn | 0,30 - 0,60 | 0,30 - 0,60 | 0,30 - 0,60 | 0,30 - 0,60 | 0,30 - 0,65 | 0,30 - 0,60 | 0,30 - 0,60 |
| P | 0,025 max. | 0,025 max. | 0,025 max. | 0,030 max. | 0,035 max. | 0,025 max. | 0,025 max. |
| S | 0,025 max. | 0,025 max. | 0,020 max. | 0,030 max. | 0,035 max. | 0,025 max. | 0,025 max. |
| Si | 0,50 max. | 0,50 max. | 0,50 max. | 0,50 max. | 0,10 - 0,55 | 0,25 - 1,00 | 0,50 - 1,00 |
| Cr | 4,00 - 6,00 | 4,00 - 6,00 | 4,00 - 6,00 | 4,00 - 6,00 | 3,90 - 6,10 | 8,00 - 10,00 | 0,90 - 1,10 |
| Mo | 0,45 - 0,65 | 0,45 - 0,65 | 0,45 - 0,65 | 0,45 - 0,65 | 0,40 - 0,65 | 1,00 - 1,50 | 0,44 - 0,65 |
| Cu | - | - | - | - | 0,25 max. | - | - |
| Sn | - | - | - | - | 0,03 max. | - | - |
| Al | - | - | - | 0,02 max. | - | - | - |
| Yield Strength [N/mm2] | 205 min. | 170 min. | 175 min. | 170 min. | 205 min. | 205 min. | 205 min. |
| Tensile Strength [N/mm2] | 415 min. | 415 min. | 410 - 540 | 450 - 600 | 450 - 600 | 415 min. | 415 min. |
| Elongation [%] | 30 min. | 30 min. | 22 min. | 20 min. | 20 min. | 30 min. | 30 min. |
| Hardness HRB | 85 max. | 85 max. | - | - | - | 89 max. | 85 max. |
