BS EN 10217-7 pdf free download
BS EN 10217-7-2021 pdf free download.Welded steel tubes for pressure purposes 一 Technical delivery conditions Part 7: Stainless steel tubes.
5.2 Designation
For the tubes covered by this document the steel designation consists of:
— the number ofthis document (EN 102 17-7);
plus either:
— the steel name according to EN 10027-1:2016;
or:
— the steel number allocated according to EN 10027-2:20 15.
6 Information to be supplied by the purchaser
6.1 Mandatory information
The following information shall be supplied by the purchaser at the time ofenquiry and order:
a) the quantity (mass or total length or number);
b) the term “tube”;
c) the dimensions (outside diameter D and wall thickness T) (see 8.8.1);
d) the designation ofthe steel grade according to this document (see 5.2);
e) the test category (see 9.3).
6.2 Options
A number of options are specifIed in this document and these are listed below. In the event that the purchaser does not indicate a wish to implement any of these options at the time of enquiry and order, the tube shall be supplied in accordance with the basic specification (see 6.1).
Information about steelmaking process (see 7.1);
2) Tube manufacturing process and/or route (see 7.2.1);
3) The inside weld is remelted (see Table 1);
4) The inside weld is worked by rolling, remelting or grinding (see Table 1);
5) Delivery condition (see 7.2.3);
6) Product analysis (see 8.2.2);
7) Additional verifications of mechanical properties on samples that have undergone a different or additional heat treatment (see 8.3.1);
8) Verification of impact energy at room temperature (see 8.3.1);
9) Verification of proof strength R02 or R10 at elevated temperatures (see 8.3.2);
10) Verification of impact energy at low temperature (see 8.3.3);
11) lntergranular corrosion test (see 8.4);
12) Repair welding (see 8.5.1.5);
13) Selection of method for verification of leak-tightness test method (see 8.5.2.2);
14) Non-destructive testing of tube ends for detection of laminar imperfections (see 8.5.2.3);
15) Non-destructive testing of strip and plate edges for detection of laminar imperfections (see 8.5.2.3);
16) Special ends preparation (see 8.7);
17) Exact lengths (see 8.8.3);
18) Tolerance class D 4 for D 168,3 mm (see Table 10);
19) The type of inspection certificate 3.2 in place of the standard document (see 9.2.1);
20) Transverse tensile test on the weld (see 10.2.2.3);
21) Test pressure for hydrostatic leak-tightness test (see 11.8.1);
22) Wall thickness measurement away from the ends (see 11.9);
23) Selection of non- destructive testing method for the inspection of the weld seam (see Table 16);
24) Image quality class B of EN ISO 10893-6 for the radiographic inspection of the weld seam (see Table 16);
25) Additional marking (see 12.2);
26) Special protection (see Clause 13);
27) Image quality class B of EN ISO 10893-7 for the digital radiographic testing of the weld (see Table 16);
28) Different values for the maximum height of the weld seam are to be agreed in the purchase order (see Table 11);
29) Height of the weld seam for tubes with route 01, 05, 06 and 07 (according to Table 1) and with thicknesses over 8 mm: maximum 4 mm (see Table 11).
6.3 Examples of an order.BS EN 10217-7 pdf download.
