MATERIAL GRADES
All unalloyed, alloyed and highly alloyed steel pipes can be bent.
This also includes pipes made of thermo-mechanically rolled steels which have particular requirements with regard to material modifications, bending techniques and heat treatment.
With regard to the production technique, we are able to bend all steel pipes – whether seamless, longitudinally welded (HFW and SAWL) or spirally welded (SAWH).
IMPORTANT:
Since 1990 we successfully bend sprially welded pipes. All major German Gas companies use our induction bends produced from sprially welded pipes.
There is no difference with regards to material qualities and bend geometry between induction bends produced from longitudinal welded or sprially welded pipes.
Standards/material grades: Induction bends for the oil and gas industry
| Standard | Material grade |
|---|---|
| API 5L (PSL 1) | A 25 A B X 42 X 46 X 52 X 56 X 60 X 65 X 70 |
| API 5 PSL 2) | B X 42 X 46 X 52 X 56 X 60 X 65 X 70 X80 |
| DIN 1626 | St 37.0 St 44.0 St 52.0 |
| Standard | Material grade |
|---|---|
| DIN 1628 | St 37.4 St 44.4 St 52.4 |
| DIN 1629 | St 37.0 St 44.0 St 52.0 |
| DIN EN 10208-1 (z.T. Ersatz für DIN 1626 und DIN 1629) | L210GA L235GA L245GA L290GA L360GA |
| DIN EN 10208-2 (Ersatz für DIN 17172) | L245NB/MB L290NB/MB L360NB/MB/QB L415NB/MB/QB L450MB/QB L485MB/QB L555MB/QB |
| Standard | Material grade |
|---|---|
| ISO 3183-1 | L175 L210 L245 L290 L320 L360 L390 L415 L450 L485 L555 |
| ISO 3183-2 | L245NB/MB L290NB/MB L360NB/MB L415NMB L450MB L485MB L555MB |
| ISO 3183-3 | L245NC L290NC/MC/QC L360NC/MC/QC L290MC L360MC L415MC/QC L450MC/QC L485MC/QC L555MC/QC |
Standards/material grades: Induction bends for power station and plant constructions
| Standard | Title |
|---|---|
| ASTM A 106 ASTM A 335 |
High-temperature steel pipes |
| ASTM A 312 | Austenitic, rustless steel pipes |
| ASTM A 333 ASTM A 334 |
Temperature-resistant steel pipes |
| ASTM A 790 | Austenitic/ferritic, rustless steel pipes |
| DIN 17175 | High-temperature steel pipes |
| DIN 17456 DIN 17458 |
Austenitic, rustless steel pipes |
| DIN 17459 | High-temperature, austenitic steel pipes |
| EN 10216-1 | Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 1: Non-alloy steel tubes with specified room temperature properties |
| EN 10216-2 | Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties |
| EN 10216-3 | Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 3: Alloy fine grain steel tubes |
| EN 10216-4 | Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Non-alloy and alloy steel tubes with specified low temperature properties |
| EN 10216-5 | Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes |
| EN 10217-1 | Welded steel tubes for pressure purposes - Technical delivery conditions - Part 1: Non-alloy steel tubes with specified room temperature properties |
| EN 10217-2 | Welded steel tubes for pressure purposes - Technical delivery conditions - Part 2: Electric welded non-alloy and alloy steel tubes with specified elevated temperature properties |
| EN 10217-3 | Welded steel tubes for pressure purposes - Technical delivery conditions - Part 3: Alloy fine grain steel tubes |
| EN 10217-4 | Welded steel tubes for pressure purposes - Technical delivery conditions - Part 4: Electric welded non-alloy steel tubes with specified low temperature properties |
| EN 10217-5 | Welded steel tubes for pressure purposes - Technical delivery conditions - Part 5: Submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties |
| EN 10217-6 | Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Submerged arc welded non-alloy steel tubes with specified low temperature properties |
