ISO 15608 Material Group 7.2
ISO 15608 Material Group 7.2: Martensitic stainless steels with C ≤ 0,35 % and 10,5 % ≤ Cr ≤ 30 %; Martensitic stainless steels are similar to low alloy or carbon steels. In the annealed condition they have a structure similar to the ferritics, but when hardened they have a ‘body-centred tetragonal’, (bct), crystal lattice, […]
ISO 15608 Material Group 7.3
ISO 15608 Material Group 7.3: Precipitation-hardened stainless steels such as 17-4PH with C ≤ 0,35 % and 10,5 % ≤ Cr ≤ 30 %; Features of ISO 15608 Material Group 7.3: Precipitation-hardened stainless steels Precipitation hardening grades have higher alloying contents than martensitic steel grades. They contain nickel, and in order to achieve hardening by […]
Material Group 8.1
Material Group 8.1 ISO 15608: Austenitic stainless steels such as grade 316L with Cr ≤ 19 % and Ni ≤ 35 % Features of austenitic steels The Cr-Ni grades are general purpose grades , which are mainly alloyed with chromium and nickel, with the exclusion of molybdenum. These grades are sometimes referred to as 18-8 […]
Material Group 8.2
Material Group 8.2 ISO 15608: Austenitic stainless steels with Cr > 19 % and Ni ≤ 35 % Features of Austenitic stainless steels group 8.2 such as 253MA Higher alloyed stainless steels generally exhibit excellent elevated temperature strength along with resistance to creep deformation and environmental attack. Because of the higher chromium (and nickel) content, […]
Material Group 8.3
Material Group 8.3 ISO 15608: Manganese-austenitic stainless steels such as XM-19 with 4 < Mn ≤ 12 % and Ni ≤ 35 % Characteristics of Manganese-austenitic stainless steels acc. Material Group 8.3 ISO 15608 In this material group 8.3, nickel has been replaced by manganese.The purpose is to reduce the impact of nickel-price fluctuations on […]
ISO 15608 Material Group 9.1
ISO 15608 Group 9.1 such as material 13MnNi6-3: Nickel alloy steels with Ni ≤ 3,0 % Nickel alloy steels ISO 15608 Material Group 9.1 for Cryogenic and Low-Temperature Service Low-temperature steels generally refer to steels applied below 0℃. The addition of Mn, Ni and other alloying elements can reduce interstitial impurities, refine grain, control the […]
ISO 15608 Material Group 9.2
ISO 15608 Group 9.2 such as 12Ni14 steel : Nickel alloy steels with 3,0 < Ni ≤ 8,0 % Nickel alloy steels such as 12Ni14 steel for Cryogenic and Low-Temperature Service Low-temperature steels generally refer to steels applied below 0℃. The addition of Ni and other alloying elements can reduce interstitial impurities, refine grain, control the […]
ISO 15608 Material Group 9.3
ISO 15608 Material Group 9.3: Nickel alloy steels with 8,0 < Ni ≤ 10,0 % 9Ni-steels for Cryogenic and Low-Temperature Service Low-temperature steels generally refer to steels applied below 0℃. The addition of Ni and other alloying elements can reduce interstitial impurities, refine grain, control the size, shape and distribution of the second phase, etc., so […]
Material Group 10.1
EN ISO 15608 Material Group 10.1: Austenitic ferritic stainless steels (Standard Duplex) with Cr ≤ 24,0 % and Ni > 4 % Standard Duplex Steels EN ISO 15608 Material Group 10.1 The duplex grades are used widely across all industry sectors. The primary factors that drive the use of duplex stainless steels are their improved […]
EN ISO 15608 Material Group 10.2 – Super Duplex Steels
EN ISO 15608 Material Group 10.2 : Austenitic ferritic stainless steels (Super Duplex) with Cr > 24,0 % and Ni > 4 % Super Duplex Steels EN ISO 15608 Material Group 10.2 The super duplex grades are used widely across all industry sectors. The primary factors that drive the use of duplex stainless steels are […]