| 21.Alloy Steel and Stainless Steel in the Forms of Coil/Bar and Wire |
| Comparison of Steel Grades |
| Item No. |
Steel Type |
GB |
ASTM |
DIN |
JIS |
| 1 |
austenitic stainless steel |
0Cr18Ni9 |
304 |
X5CrNi1810 |
SUS304 |
|
00Cr19Ni10 |
304L |
X2CrNi1911 |
SUS304L |
|
|
304HC |
|
|
|
0Cr17Ni12Mo2 |
316 |
X5CrNiMo1810 |
SUS316 |
|
00Cr17Ni14Mo2 |
316L |
X2CrNiMo1814 |
SUS316L |
| 2 |
ferritic stainless steel |
1Cr17 |
430 |
X6Cr17 |
SUS430 |
| 3 |
resulphurized stainless steelo |
Cr18Ni8 |
303 |
X10CrNiS189 |
SUS303 |
| 4 |
martensitic stainless steel |
2Cr13 |
420 |
X20Cr13 |
SUS420J1 |
|
|
403Nb |
|
|
| 5 |
hardened stainless steel |
0Cr17Ni4Cu4Nb |
630 |
|
SUS630 |
|
GDT450 |
|
|
|
| 6 |
austenitic stainless steel foe valves |
21-2N,21-4N,21-12N,23-8N |
|
|
|
| 7 |
martensitic stainless steel for valves |
4Cr10Si2Mo |
|
|
SUH3 |
|
4Cr9Si3 |
|
X45CrSi93 |
SUH1 |
| 8 |
bearing steel |
GCr15 GCr15SiMn |
52100 |
100Cr6 |
SUJ2 |
| 9 |
cold heading steel |
ML10-45 |
|
|
|
| 10 |
free cutting steel |
Y12 |
|
|
|
| 11 |
spring steel |
60Si2MnA |
9260 |
60SiCr7 |
SUP7 |
| 12 |
alloy structural steel |
16-28MnCr5 |
|
|
|
| 13 |
carbon structural steel |
45 |
1045 |
CK45 |
S45C |
| Size,Weight and Delivery Condition |
| Bar |
cut-to-length |
3.5-12m |
| bundle weight |
1-4t |
| length of slow-cooled products |
6m |
| Coil |
size |
Ф 18-40mm |
| inside diameter |
850mm |
| outside diameter |
1250mm |
| coil weight |
about 2 tons/coil |
| Wire |
size |
Ф 5-12mm |
| inside diameter |
850mm |
| outside diameter |
1250mm |
| coil weight |
about one ton for valve steel,about two tons for stainless steel and other special steel |
| Delivery Condition |
hot rolled,annealed,solutionized,pickled,bonderized,bright steel |
| Quality of Steel Products |
| size and tolerance |
wire |
tolerance |
ovality |
| Ф 5mm Ф 5.5-20mm |
± 0.13mm ±0.1mm |
0.156mm 0.1mm |
| bar and coil |
tolerance |
ovality |
| Ф 15-23mm Ф 24-50mm |
± 0.11-0.13mm ±0.13-0.15mm |
0.176-0.208mm 0.208-0.26mm |
| straightess of bar(hot rolled products) |
Ф≤ 30mm:3mm/m; Ф≥ 31mm:2mm/m |
| 22.Titanium and Titanium Alloys |
| Variety |
Size |
| mm |
in |
| ingot |
Ф 423-660 |
Ф 16.65-25.98 |
| forging blanks |
according to requirement |
|
| forging (discs,rings) |
Ф 200-600*<200 < Ф 600-< Ф 500*<200 |
Ф 7.87-23.62*<7.87< Ф 23.62-< Ф 19.69*<7.87 |
| fored bars |
Ф 80-300 |
Ф 3.15-11.81 |
| hot rolled bars |
Ф 19-130 |
Ф 0.75-5.12 |
| sheet and plate(outside diameter*wall thickness*height) |
0.5-6*1000*2000 6-10*1500*2000-6000 20-50*1500*2000-10001 |
0.0197-0.118*39.37*78.74 0.236-0.393*59.06*78.74 0.787-1.97*59.06*78.74 |
| big rolled rings |
Ф 1500-2000*50-150*100-250 |
Ф 59.06-78.74*1.97-3.94*3.93-9.84 |
| isothermic die forgings |
outside diameter Ф 600 unit weight 60kg/piece |
Ф 23.62 60kg |
| Typical Grade and Variety |
| GB |
ASTM |
TY |
Variety |
| TA1 |
Grade1 |
|
ingot plate bar tube and pipe |
| TA2 |
Grade2 |
|
ingot plate bar tube and pipe |
| TA3 |
Grade3 |
|
ingot plate bar tube and pipe |
| TA5 |
|
48-OT3 |
ingot bar plate |
| TA7 |
Ti-5Al-2.5Sn |
BT5-1 |
ingot bar ring |
| TC4 |
GR5(Ti-6Al-4V) |
|
ingot bar disc and ring |
| TA17 |
GR9(Ti-3Al-2.5V) |
OT4-1B |
tube and pipe bar |
| TA10 |
GR12(Ti-0.3Mo-0.8Ni) |
|
bar tube and pipe plate |
| TC4ELI |
Ti-6Al-4V ELI |
|
ingot bar disc and ring |
| TB6 |
Ti-10V-2Fe-3Al |
|
bar |
| TC6 |
|
BT3-1 |
forged bar hot rolled bar disc and ring |
| TC11 |
|
BT9 |
forged bar hot rolled bar disc and ring |