BS 3059 Steel boiler and superheater tubes Part 2

BS 3059  Steel boiler and superheater tubes Part 2

BS3059 Steel boiler and superheater tubes

Part 2. Specification for carbon, alloy and austenitic stainless steel tubes with specified elevated temperature properties

1. Scope
This part of BS 3059 specifies requirements for plain end, seamless and welded, carbon and alloy steel tubes and for cold finished seamless austenitic steel tubes, not exceeding 127mm outside diameter and not exceeding 12.5mm thickness for use in boilers and superheaters.
Tubes manufactured in accordance with this Part of BS 3059 have specified room temperature properties and specifed proof stress values at elevated temperatures.

2. Information to be supplied by the purchaser and options to be documented
2.1 Information to be supplied by the purchaser
The following information shall be supplied by the purchaser and fully documented:
(a) the designation of the tubes, i.e. the number of this Part of BS 3059, the method of manufacture of the bute and the tolerance class where applicable, the grade of steel and the category of test specified. e.g BS 3059 : Part 2: ERW 1 620-460 : Cat 1;
(b) the tube outside diameter and thickness for seamless tubes class 2, electric resistance welded tubes, and cold finished seamless tubes, or the outside or inside diameter and thickness for seamless tubes class 1 and cold finished electrical resistance welded tubes;
(c) the tube length, if exact;
(d) the quantity in metres or number of lengths.
2.2 Options to be documented.
Please see details in original BS 3059 Part 2.

3. Designation
3.1 Method of manufacture of tube and tolerance class (reference)
Seamless, class 1 (S1)
Seamless, class 2 (S2)
Electric resistance welded, class 1 (ERW 1)
Electric resistance welded, class 2 (ERW 2)
Cold finished electric resistance welded (CEW)
Cold finished seamless (applicable only to austenitic stainless steel types) (CFS)
(Note: Tolerance class is not applicable to CEW and CFS)
3.2 Steel Type number
BS 3059 Grade 360
BS 3059 Grade 440
BS 3059 Grade 243
BS 3059 Grade 620-460
BS 3059 Grade 633-490
BS 3059 Grade 629-590
BS 3059 Grade 91
BS 3059 Grade 762
BS 3059 Grade 304S51
BS 3059 Grade 316S52
BS 3059 Grade 321S51(1010)
BS 3059 Grade 321S51(1105)
BS 3059 Grade 347S51
BS 3059 Grade 215S15

4. Chemical Composition and Mechanical Properties, see original BS 3059 Part 2.
5. Dimension tolerance, see original BS 3059 Part 2.

 

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