IS 6630-1985

标准号：IS 6630-1985
发布日期：1986/2/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This standard covers the requirements for seamless ferritic alloy steel pipes intended for high temperature steam service. Several grades covered in this standard are given in Table 1.TABLE I CHEMICAL COMPOSITION( Clauses 1.1, 4.1, 4.1.1, 4.1.2, 4.2 and 43 )Grade Perce ntage of Elemen TS Designation [Ref IS:1762- (Part1)-1974* C Si Mn P, Max S, Max Cr Mo VOld Deesigna- tion] (1) (2) (3) (4) (5) (6) (7) (8) (9)( 16Mo30) 0·12 to 0·10 to 0·40 to 0·040 0·040 — 0·25 to — 0·20 0·35 0·80 0·35 15Cr4Mo6 0·10 to 0·10 to 0·40 to 0·40 0·040 0·70 to 0·45 to —(15Cr90MoS5) 0·20 0·35 0·70 1·10 0·65 10Cr9Mol0 0·15, 0·50, 0·40 to 0·040 0·040 2·00 to 0·90 to —( l0Cr2Mol) Max Max 0·70 2·50 1·20 20Cr20Mo6 0·15, 0·50, 0·40 to 0·030 0·030 4·0 to 0·45 to —(10Cr5Mo55) Max Max 0·70 6·0 0·65 ( 14Cr45Mo 0·10 to 0·10 to 0·40 to 0·040 0·040 0·30 to 0·50 to 0·2260V27) 0·18 0·35 0·70 0·60 0·70 to 0·32*Code for designation of steels: Part 1 Based on letter symbols (first revision ).