BS 8701:2016 gives a method for determining the susceptibility to cracking of steel pipes in sour service.

This British Standard utilizes a tubular specimen comprising a full circumferential ring. The test method applies to any pipe with or without seam (longitudinal or spiral) or girth weld (with or without filler).

NOTE 1 The specimen is usually a pipe but can also consist of flange neck or section of a bend, or other tubular component or a combination of the above.

This British Standard provides guidance on determination of specimen size to ensure it retains residual stresses from manufacture and welding.

NOTE 2 See Clause 7 for specimen sizes.

The method utilizes ovalization to simulate hoop stress, using mechanical loading on a tubular form. The specimen is subjected to single sided exposure to the sour test environment.

NOTE 3 The test also allows measurement of hydrogen permeation rates which can provide useful information, such as highlighting the effects of galvanic coupling between materials of apparent compatibility.


Cross References:
BS EN 12668
BS EN ISO 2400
BS EN ISO 7963
BS EN ISO 8044
BS EN ISO 9712
BS EN ISO 11666
BS EN ISO 16810
BS EN ISO 17640
ASTM D1193
NACE TM0177
BS EN ISO 9001
BS EN ISO 9002
BS EN ISO 9934
BS EN ISO 16811
BS EN ISO 15156-3
ASTM A370
OTI 95 635
Control of Substances Hazardous to Health Regulations
1988 (COSHH)


All current amendments available at time of purchase are included with the purchase of this document.