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| Standards | DIN 1628 Tube |
|---|---|
| DIN 1628 Seamless Pipe Size | 4 to 219mm W. T.: 0.5 to 20mm |
| DIN 1628 Welded Pipe Size | 5.0 mm – 1219.2 mm |
| DIN 1628 EFW Pipe size | 5.0 mm – 1219.2 mm |
| DIN 1628 Pipe Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| DIN 1628 Welded Tube Size | 6.35 mm OD To 152 mm OD |
DIN 1628 Welded Steel Tubes Chemical Composition
| Steel grade | Type of deoxidation (RR, fully killed) |
Chemical composition, % by mass | ||||||
| Symbol | Material Number | C max |
Si max |
Mn max |
P max |
S max |
Addition of nitrogen fixing elements (e.g. not less than 0.020 % Al total) |
|
| Din 1628 St37.4 | 1.0255 | RR | 0.17 | 0.35 | ≥0.35 | 0.040 | 0.040 | Yes |
| Din 1628 St44.4 | 1.0257 | RR | 0.20 | 0.35 | ≥0.40 | 0.040 | 0.040 | Yes |
| Din 1628 St52.4 | 1.0581 | RR | 0.22 | 0.55 | ≥1.60 | 0.040 | 0.035 | Yes |
Why Choose GNEE
GNEE has specialized in producing hard chrome plated rods and honed/peeled tubes and drum polished tubes for over 16 years. We have sophisticated processing equipment, strong technical strength and advanced technology.
GNEE has obtained CQC ISO 9001 certification in 2008. We are cooperating with more than 45 countries including Korea, Australia, the United States, Russia, Turkey, Saudi Arabia, etc. Our export sales have reached 30 million USD per year.
If any question,please contact with us freely by E-mail or Telephone.
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