NORSOK挪威石油标准化组织Y55r4Date shett
时间：2020-08-31 08:07:19 来源：勤学考试网 本文已影响 人 
NORSOK Standard
MATERIAL DATA SHEET MDS - Y55 Rev. 42
TYPE OF MATERIAL: Structural Steel
PRODUCT
STANDARD
GRADE
Plates
EN 10225
S500Q3/S500M3S500G1+Q/G1+M1)
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/S460M3S460G1+Q/G1+M shall be modified to Grade S500Q3/S500M3 S500G1+Q/G1+M 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 cover both delivered and PWHT condition and shall include strain ageing tests (ref. option 12), typical tensile test results for plates and weldability tests according to Annex E (option 18) within each of the following thickness ranges that are relevant for the order:
25<t ? 40mm
40<t ? 63mm
63<t ? 100mm
100<t ? 150mm
Other thickness ranges related to same chemistry and manufacturing process may apply. In such cases the thickest material in the range shall be tested. The results from PWHT condition shall also meet the specified requirements.
CTOD testing shall be included for weldability testing for t > 40 mm and shall meet a requirement of min. 0,25 mm in as welded condition, and min 0,20 in PWHT condition unless lower values have been accepted by the purchaser. CTOD testing for thicknesses below 40 mm may be required on the basis of special design criteria.CTOD testing shall be included and shall meet a requirement of min. 0.25 mm (as-welded)/min. 0.20 mm (PWHT condition), unless a lower value has been accepted by the purchaser.
HEAT TREATMENT/
DELIVERY CONDITION
CHEMICAL COMPOSITION
Option 6 and 9, Ni content min. 0,50%.
Other limits may be accepted after special agreement
TENSILE TESTING
Mechanical properties given in Table 5c for Grade S460G1+Q/S460G1+M shall be modified as follows:
Yield Strength (min.) : 500 - 600 MPa (t ? 75 mm)
Tensile Strength : 600 - 700 MPa (t ? 75 mm)
IMPACT TESTING
EXTENT OF TESTING
SURFACE CONDITION
NON DESTRUCTIVE TESTING (NDT)
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.
