Index 385Low interstitial ferfitic grades, 292
Low-carbon free cutting steels, 240-42
Low-carbon strip steel
behaviour in use, 109-114
cold-forming behaviour, 19- 25
hot dip aluminium coating, 93
joining methods, 100-109
manufacture, 36
metallurgical principles, 6-19
organic-coated, 93-5
other uses, 125-8
overview, 1-2
prices, 95
processing, 2-6
use in automotive applications,
115-123
use in buildings, 123-5
work-hardening coefficient, 25-7
zinc-coating, 85-93
see also tinplate
Low-carbon structural steels
corrosion resistant, 153, 158, 158-63
grain size control, 138-9
inclusion shape control, 163, 166
metallurgical principles, 138-9
overview, 137-8
prices, 153
rolling]thermomechanical processing,
147-52
standard specifications, 152-3
strengthening mechanisms, 139-47
Low-strength steels, 37-9
Interstitial-free (IF), 39-43
Low-temperature applications, 357-61
Lttders lines (strain markings), 86
Machinability, 202, 232
low-alloy steels, 242
stainless steels, 242-3
testing, 236
Magnesium, as desulphurizing agent, 166
Manganese
as alloying element, 45, 47, 64, 202
as austenite former, 293, 299
effect on corrosion resistance, 163
effect on hardenability, 211 - 12
effect on interlamellar spacing, 288
effect on strength, 147
effect on toughness, 195
as nickel replacement, 316
Maraging steels, 260
commercial grades, 261-3
corrosion behaviour, 263
metallurgy, 260-61
uses, 263-4
Marangoni convection, 339
Martempering treatment, 203
Martensite, 8, 11-12
start/finish temperatures, 12
strain-induced, 294, 343, 349, 351
Maurer, Eduard, 291
Mayari R steel, 161
Micro-alloy steels, 58-63, 137, 147
alloying elements, 139, 142
cold-reduction, 62-3
commercial uses, 281-4
forging grade, 202, 279-80
high-carbon wire rod, 287-8
metallurgy, 280-81
VANARD grades, 283
MIG (metal inert gas) welding, 106
mild steels, 36, 37-9
minimum effective bridge temperature
(MEBT), 183
Mn-Mo-Cu steel, 192
Molybdenum
as alloying element, 201
for corrosion resistance, 314, 376
as delta ferrite former, 299
effect on hardenability, 211-12
effect on intergranular corrosion, 324
effect on SCC behaviour, 330
effect on tempering resistance and
hardenability, 218-19, 312
in engineering steels, 199
in high-speed steels, 255
promotion of delta ferfite, 293
promotion of secondary hardening, 319
in stainless steels, 333
for temper embrittlement resistance,
219
Muffler grade steel, 372, 373
Multi-storey buildings, 184
building code requirements, 185-7
Multiphase steels see TRIP steels
Multiplying factor, hardenability, 212, 216n value see work-hardening coefficient
National Association of Corrosion
Engineers (NACE), 195
HIC test, 195
Nickel
as austenite former, 297
effect on corrosion behaviour, 329
effect on hardenability, 211-12
in engineering steels, 199
as ferrite strengthener, 219
resistance to HIC, 196
in stainless steels, 293, 297-9, 333
Nickel equivalent, 301
Nicuage 1N787, 192
Nimonic, 80,4, 269, 271