EN10204 3.1 Finned Tubes / Enquiry of G Type Finning

) 3520 pcs finned – seamless tubes:

a) Base tube – seamless type of tube
- f 25 x 2,77min(core tube)x 7 000 mm

material : SA213TP304L

• certificate : 3.1
  b) Finning- Aluminum  ,
  - OD : f 57 mm x 11 FPI , „G” type
  - thickness of fin : 0,4 mm
  c) Free ends of finned tubes
  - 60 x 60 mm

2) 10560 pcs finned – seamless tubes:

a) Base tube – seamless type of tube
- f 25 x 2,77min(core tube)x 8 000 mm

material : SA334GR.6

• certificate : 3.1
  b) Finning- Aluminum ,
  - OD : f 57 mm x 11 FPI , „G” type
  - thickness of fin : 0,4 mm
  c) Free ends of finned tubes
  - 50x 50 mm

3) 4896 pcs finned – seamless tubes:

a) Base tube – seamless type of tube
- f 25 x 2,77min(core tube)x 8 300 mm

material : SA334GR.6

• certificate : 3.1
  b) Finning- Aluminum ,
  - OD : f 57 mm x 11 FPI , „G” type
  - thickness of fin : 0,4 mm
  c) Free ends of finned tubes
  - 35 X 35 mm
• 4) 558 pcs finned – seamless tubes:

  a) Base tube – seamless type of tube
  - f 25 x 2,77min(core tube)x 5 000 mm

  material : SA334GR.6

  • certificate : 3.1
    b) Finning- Aluminum ,
    - OD : f 57 mm x 11 FPI , „G” type
    - thickness of fin : 0,4 mm
    c) Free ends of finned tubes
    - 30 X 30 mm
• 5) 720 pcs finned – seamless tubes:

  a) Base tube – seamless type of tube
  - f 25 x 2,77min(core tube)x 5 500 mm

  material : SA334GR.6

  • certificate : 3.1
    b) Finning- Aluminum ,
    - OD : f 57 mm x 11 FPI , „G” type
    - thickness of fin : 0,4 mm
    c) Free ends of finned tubes
    - 40 X 40 mm

Requirements:

1. PMI required in accordance with specifaction for PMI doc 055-4.0.0.00.CPC-THM.TT-0020 only for core tubes pos.1
2. for material SA334 GR.6 - Impact test 27 J at  -52C temerature see attached document
3. The maxiumum carbon content of carbon Steel shall be 0,23%. Max C.E. (IIW) = 0,44%
4. Certificate 3.1
5. Eddy current test and US testing : 100%
6. Tubes for russian market