Duplex Tubes and Pipes
Duplex Tubes/Pipes
Main Grade | Standard | Specification |
S31803; S32205;S31500; S32750 | ASTM A789 | OD: 12.0-219.0mm |
ASTM A790 | OD: 10.0-273.0mm |
Nickel-Alloy
Main Grade | Standard | Specification | ||
N08825,N08904, | ASME SB163, ASTM B163, | OD: 16-273mm |
Main Production Standards
Standard Type | Standard |
EN | EN10216-5, EN10216-2 |
DIN | DIN 17456, DIN 17458 |
ASTM | ASTM A312, A213, A269, A511, A789, A790; B163, B423, B407, B668 ASME SA213, SA312, SA789, SA790, SB163, SB423, SB407, SB668 |
JIS | JIS G3459, G3463 |
GOST | GOST 9941, GOST 5632 |
GB | GB/T14975, GB/T14976, GB13296, GB5310, GB9948 |
(Special standards can be produced according to mutual agreement)
Main Manufacturing Facilities
Item | Unit | Technical data |
Peeling lines | 2 | Φ50-200mm |
Piercing lines | 6 | Φ60-200mm |
Cold drawing lines | 26 | Φ6-850mm |
Cold rolling lines | 16 | Φ15-355mm |
Straightening machine | 6 | Φ12-426mm |
Annealing furnace | 2 | |
Pickling pool | 8 |


Product Qualification
ISO9001 Quality Management System Certification
ISO14001 Environmental Management System Certification
ISO45001 Occupational Health Management System Certification
Special Equipment Manufacturing License A-level Certificate
PED2014/68/EU Pressure Equipment Directive
TRCU
ABS
DNV-GL
LR
BV
KR
CCS
NORSOK M650
CE
Process Flow




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