AKR407C
Standard:
EN ISO 3580 B E6216 2C1M
AWS A5.5 E9015-B3
GB/T 5118 E6216 2C1M
Description: Low hydrogen type coating of low alloy heat-resistant steel electrode for sodium,has good resistance to fatigue cracking of welded joint performance, exce-llent resistance to temper embrittlement and its mechanical properties of welded joint of high operating characteristics of an electrode, and suitable for field installation and constructicn, and compared to ordinary steel velding material, has the folloring characteristics:1 Deposited wetal purity, impurities such as S and p is extremely low, s<0.10%, P<0.10%. 2. Excellent low tesperature toughness of depo-sited wetal, KVg(-30C) ≥54J. 3. Excellent resistance to temper embrittlement of weld wetal, x factor is very lon.
Application: Used in the petroleum refining petrochemical, coal chemicals, stesm turbine cylinder, thermal power, nuclear energy and other harsh conditions corrosive wedium large, complex equipment ASME SA387 Gr. 22 Class 2 (12Cr2Mo1R) class steel plate welding
Typical Chemical Composition(%):
C:0.07 Mn:0.69 P:0.006 S:0.003 Si:0.2 Cr:2.25 Mo:1.05 Sb:0.001 As:0.003 Sn:0.001 X:7.2
Typical Mechanical Properties(%): ②=heat treatment 690℃*8h ③=heat treatment 690℃*26h
℃ Tensile strength (MPa) Yield Stress (MPa) Elongation (%) Impact values (J)
normal temperature 600 500 23 ②159 164 185
475 —— 450 —— ②159 164 185
normal temperature 550 460 25 ③163 135 144
475 —— 430 —— ③163 135 144