NORSOK挪威石油标准化组织Y52r4Date shett
时间：2020-08-31 08:07:18 来源：勤学考试网 本文已影响 人 
NORSOK Standard
MATERIAL DATA SHEET MDS - Y52 Rev. 42
TYPE OF MATERIAL: Structural Steel, with documented through thickness properties
PRODUCT
STANDARD
GRADE
Seamless tubulars
(Seamless hollow sections)
EN 10225
S500Q3(z mod)S500G6+Q(mod)1)
SCOPE
This MDS specifies the selected options in the referred standard and modified requirements which shall supersede the corresponding requirements in the referred standard.
STEEL GRADE
Grade S460Q3 S460G6+Q(mod) shall be modified to Grade S500Q3 (z mod)S500G6+Q(mod) as specified by this MDS.
QUALIFICATIONS
Base material information, shall be submitted with the bid/ be established prior to delivery.
The documentation of base material shall include strain ageing tests (ref. option 12), typical tensile test results and weldability tests according to Annex E (option 18) for sections with thickness approximately 20 mm or the greatest thickness required in the purchase order.
CTOD testing shall be included for weldability testing for thickness above 40 mm and shall meet a requirement of min. 0,25 mm in as welded condition unless lower values have been accepted by the purchaser. Weldability tests in accordance with Annex F shall be carried out for the largest tubular thickness of the delivery, within ?5 mm (ref. option 18).
HEAT TREATMENT/
DELIVERY CONDITION
CHEMICAL COMPOSITION
Option 6
Other limits may be accepted after special agreement
TENSILE TESTING
Mechanical properties given in Table 11 for Grade S460G6+Q shall be modified as follows:
Yield Strength (min.) : 500 MPa (thicknesses ? 40 mm)
Tensile Strength : 600 - 700 MPa (thicknesses ? 40 mm)
IMPACT TESTING
EXTENT OF TESTING
Option 13
SURFACE CONDITION
NON DESTRUCTIVE TESTING (NDT)
Option 22
SURFACE PROTECTION
All surfaces shall receive a preliminary protective primer coat. Blast cleaning shall comply with ISO 8501-1 Sa 2? and the surface shall remain at Sa 2? until application of the primer. The primer shall consist of 1 coat zinc ethyl silicate primer with 15 microns. Measured on a plane polished steel or glass test plate the DFT shall be maximum 25 microns.
CERTIFICATE
EN 10 204 Type 3.1B
1) Note. This steel grade is not included in EN 10225.
