Common carbon structural steel also be called Mild steel. This kind of steel has very wide use. Because of the low Carbon content and without alloy element, carbon structural steel has the proper tensile strength, good toughness, plasticity,processing property. Carbon structural steel usually be rolled into steel plates, shaped steel and profile steel, which usually used to build workshop,bridge,vessels and so on .The delivery station usually are hot rolled,control rolled, or Normalized .
Low alloy high strength steel also can be called common low alloy steel,low alloy structural steel. Low alloy structural steel's total alloy content usually is not more then 3% .Except for Si and Mn, there is V,Ti,Nb,Al,Cr,Ni,Re,N and so on.
The main steel grades in Carbon and low alloy steel are like :
EN10025(93):S185,S235JR,S235J0,S235J2,S235J2G3,S235J2G4,S355JR,S355J0,S355J2,S355J2G3,S355J2G4,S355K2G3,S355K2G4,S275JR,S275J0,S275J2,S275J2G3,S275J2G4.
EN10025(90): Fe310-0,Fe E360B,Fe E360C,Fe E360D1,Fe E360D2, Fe430B,Fe430C,
Fe430D1,Fe430D2,Fe510B,Fe510C,Fe510D1,Fe510D2,Fe510 D D1,Fe510 D D2.
EN10113-2: S275N,S275NL,S355N,S355NL
DIN17100: St33,St37-2,St37-3U,St37-3N,St44-2,St44-3U,St44-3N,St52-3,St52-3N.
NFA35-501: A33,E24-2,E24-3,E24-4,E28-2,E28-3,E28-4,E36-2,E36-3,E36-4.
UNI7070:Fe 320,Fe 360 B,Fe 360 C,Fe 360 D,Fe430B,Fe430C,Fe430D,Fe 510 B,Fe 510 C,Fe 510 D,Fe 510 D D
NBN21-101:A 320,AE235B,AE235C,AE235D,AE 255 A/B/C/D ,AE295 B,AE295 C,AE295 D,AE295 DD,AE 355 B,AE 355 C,AE 355 D,AE 355 DD.
MNC810E:SS13,00,00 SS 13.11.00 SS 13,12,00 SS14,12,00 SS14,14,00 SS14,14,01 SS26,32,00 SS26,34,11 SS21,72,00 SS21,74,01 SS21,32,01 SS21,34,01 SS 21,35,01 SS 26,42,00 SS26,44,11
BS4360: 40(A)B/C/D/EE. 43(A)B/C/D/EE 50B/C/D/DD/EE
CSAG40-21: 230 G,260W,WT 300W,WT 350W,WT
IS:
IS226,Fe410-s,IS2062,Fe410 WA,Fe410 WB,Fe410 WC,IS 961,Fe 570 HT,Fe 540 WHT.
JIS3101:SS330,SS400,SS490
JIS3106:SM400A/B/C,SM490A/B/C,SM490YA/B,SM520B/C
ASTM:A283GrA/B/C/D,A284GrC/D,A36,A529Gr42/50,A572Gr42/50,A573Gr58/65/70,A633GrA/C/D,A656Gr50,A709Gr36/50/50w/A808.
ISO630: FE 310, FE 360B/C/D, FE 430B/C/D , FE 510B/C/D , A656
| Europe | Germany | France | Italy | Belgium | U.K. | Canada | India | Japan | International | USA | |||
| EN10025 (93) | EN10025 (90) | EN10113-2 | DIN 17100 | NFA 35-501 | UNI7070 | NBN21-101 | BS4360 | CSAG40-21 | IS | JIS3101 | JIS 3106 | ISO 630 | ASTM |
| S185 | Fe 310-0 | St 33 | A 33 | Fe 320 | A 320 | SS 330 | |||||||
| FE 310 | |||||||||||||
| S235JR(G2) | Fe E360B(FN) | RSt 37-2 | E24-2 | Fe 360 B | AE235B | 40(A)B | 230 G | IS226 | SS400 | SM 400A | Fe 360 B | A 36/A283C | |
| S235 J0 | Fe E 360 C | St37-3U | E 24-3 | Fe 360 C | AE235 C | 40C | Fe 410-S | SM400B | Fe 360C | ||||
| S235J2G3 | Fe E 360 D1 | St 37-3 N | E24-4 | Fe 360 D | AE 235 D | 40D | SM400C | Fe 360 D | |||||
| S235J2G4 | FeE360 D2 | 40 EE | |||||||||||
| AE255A,B,C,D | |||||||||||||
| S275 JR | Fe430 B | ST 44-2 | E 28-2 | Fe430B | AE295 B | 43(A)B | 260W,WT | IS2062 | Fe 430B | A529GR 42,50 | |||
| S 275 JO | Fe 430 C | St44-3U | E 28-3 | Fe 430 C | AE 295C | 43 C | Fe410 WA | Fe 430C | |||||
| S275 J2G3 | Fe430 D1 | S 275N | St 44-3N | E 28-4 | Fe 430D | AE 295 D | 43 D | Fe 410 WB | Fe 430D | ||||
| S275 J2G4 | Fe430 D2 | S 275NL | AE 295 DD | 43EE | Fe 410 WC | ||||||||
| 300W.WT | |||||||||||||
| S 355 JR | Fe510 B | E 36-2 | Fe 510 B | AE 355 B | 50 B | 350 W, WT | IS 961 | SS490 | SM 490A | FE 510 B | A572gr,42,50 | ||
| S 355 JO | Fe 510 C | St 52-3 U | E 36-3 | Fe 510C | AE 335 C | 50 C | Fe 570 HT | SS490B | Fe 510 C | ||||
| S 355 J2G3 | Fe 510 D1 | S 355 N | St 52-3 N | Fe 510D | AE 355 D | 50 D | Fe 540 WHT | SS 490 C | Fe 510D | ||||
| S 335J2G4 | Fe 510 D2 | S 355 NL | SS 490 YA | A 656 | |||||||||
| S 335K2G3 | Fe 510 D D1 | E 36 -4 | Fe 510 DD | AE355DD | 50 DD | SS490 YB | |||||||
| S 335K2G4 | Fe 510 D D2 | 50 EE | SM 520 B | ||||||||||
| SM 520 C | |||||||||||||
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