GB/T700 GB/T1591 GB Material Carbon Steel Coil
GB/T700 Q275 carbon steel and low alloy steel coil equivalent material is S275JR steel plate. S275JR steel coil is a general purpose carbon structural steel. This steel is similar to the steels listed in China GB/T700 and GB/T1591. It is also a carbon structural steel and low alloy structural steel used in engineering steel and structural steel, which is usually not heat treated. GB/T1591 steel coil is a Chinese standardized low alloy medium tensile strength steel coil produced by hot rolling process. GB/T1591 steel coil has a variety of manufacturing purposes.
Product Parameters
| Product Name | GB/T700 GB/T1591 GB Material Carbon Steel Coil |
| Production Process | Hot Rolling, Cold Rolling |
| Material Standards | AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc. |
| Width | 45mm-2200mm |
| Length | Custom Size |
| Thickness | Hot Rolling: 2.75mm-100mm Cold Rolling: 0.2mm-3mm |
| Delivery Conditions | Rolling, Annealing, Quenching, Tempered or Standard |
| Surface Process | Ordinary, Wire Drawing, Laminated Film |
Chemical Composition
| Grade | C | Mn | Si | P | S |
| Q235A | 0.14-0.22 | 0.30-0.65 | 0.30 | 0.045 | 0.050 |
| Q235B | 0.12-0.20 | 0.30-0.70 | 0.30 | 0.045 | 0.045 |
| Q235C | ≤ 0.18 | 0.35-0.80 | 0.30 | 0.040 | 0.40 |
| Q235D | ≤ 0.17 | 0.35-0.80 | 0.30 | 0.035 | 0.035 |
| Q275 | 0.28-0.38 | 0.50-0.80 | 0.35 | 0.045 | 0.050 |
| Q345B | ≤0.2 | ≤ 1.7 | ≤0.5 | 0.035 | 0.035 |
| Q345C | ≤0.2 | ≤ 1.7 | ≤0.5 | 0.03 | 0.03 |
| Q345D | ≤ 0.18 | ≤ 1.7 | ≤0.5 | 0.03 | 0.025 |
| Q390C | ≤0.2 | ≤ 1.7 | ≤0.5 | 0.03 | 0.03 |
| Q390D | ≤0.2 | ≤ 1.7 | ≤0.5 | 0.03 | 0.025 |
| Q460C | ≤0.2 | ≤ 1.7 | 0.8 | 0.025 | 0.015 |
| Q460D | ≤0.2 | ≤ 1.7 | 0.8 | 0.025 | 0.015 |
| Q460E | ≤0.2 | ≤ 1.7 | 0.8 | 0.02 | 0.01 |
| Q690C | ≤0.2 | ≤ 1.7 | 0.8 | 0.025 | 0.015 |
| Q690D | ≤0.2 | ≤ 1.7 | 0.8 | 0.025 | 0.015 |
| Q690E | ≤0.2 | ≤ 1.7 | 0.8 | 0.02 | 0.01 |
Scope of Application
For bridge construction, highway construction and other engineering construction.
| China | USA | Germany | Japan | France | U.K. | internationality |
| GB3077 | AlSI | DIN | JIS | NE | BS | ISO |
| 20Mn2 | 1320
1221 |
20Mn5 | SMn21 | 20M5 | 150M19 | – |
| 30Mn2 | 1330 | 30Mn5 | SMn24 | 32M5 | 150M28 | – |
| 35Mn2 | 1335 | 36Mn5 | SMnl | 35M5 | 150M36 | – |
| 40Mn2 | 1340
1341 |
– | SMn2 | 40M5 | – | – |
| 45Mn2 | 1345 | 46Mn7 | SMn3 | 45M5 | – | – |
| 50Mn2 | 1052 | 50Mn7 | – | 55M5 | – | – |
| 20MnV | – | 20MnV6 | – | – | – | |
| 30Mn2MoW | – | — | – | – | – | |
| 27SiMn | – | 27MnSi5 | – | – | – | |
| 35SiMn | – | 37MnSi5 | – | 38MS5 | – | – |
| 42SiMn | – | 38MnSi4
46MnSi4 |
– | 38MS5 | – | – |
| 20SiMn2MoV | – | – | – | – | – | – |
| 25SiMn2MoV | – | – | – | – | – | – |
| 37SiMn2MoV | – | – | – | – | – | – |
| 40B | 14B35 | 35B2 | – | – | – | – |
| 45B | 50B46H | 45B2 | – | – | – | – |
| 50B | 14B50 | – | – | – | – | – |
| 4OM∏B | 15B41 | – | – | – | – | – |
| 45MnB | 15B48
50B44 |
– | – | – | – | – |
| 20Mn2B | – | – | – | – | – | – |
| 20MnMoB | 80B20 | – | – | – | – | – |
| 15MnVB | – | – | – | – | – | – |
| – | – | – | – | – | – | – |
| – | – | – | – | – | – | – |
| 20MnVB | – | – | – | – | – | – |
| 40MnVB | – | – | – | – | – | – |
| 20MnTiB | – | – | – | – | – | – |
| 25MnTiBRE | – | – | – | – | – | – |
| 2OSiMnVB | – | – | – | – | – | – |
| 15Cr | 5015
5115 |
15Cr3 | SCr21 | 12C3 | 523A14
523M15 |
– |
| 15CrA | – | – | – | – | – | – |
| 20Cr | 5120 | 20Cr4 | SCr22 | 18C3
18C4 |
527A19
527M20 |
683/11
20Cr4 20CrS4 |
| 30Cr | 5130 | 28Cr4 | SCr2 | 28C4
32C4 |
530A30
530A32 |
– |
| 35Cr | 5135 | 34Cr4
37Cr4 |
SCr3 | 38C4 | 530A36 | 683/8
3、 3a、 3b |
| 40Cr | 5140 | 38Cr4
41Cr4 |
SCr4 | 42C4 | 530A40
530M40 |
683/1
4、 4a^ 4b |
| 45Cr | 5145 | 42Cr4 | SCR5 | 45C4 | – | – |
| 50Cr | 5150
5152 |
– | – | 50C4 | En48 | – |
| 38CrSi | – | – | – | – | – | – |
| 12CrMo | 4119 | 13CrMo44 | – | 12CD4
15CD2 |
– | – |
| 15CrMo | ASTM
A-387Gr. B |
15CrMo5
16CrMo44 |
SCM21 | 15CD4. 05 | BS1653 | – |
| 20CrMo | 4118 | 20CrMo5
22CrMo4 |
SCM22 | 18CD4
20CD4 |
CDS 12
CDSllO |
– |
| 30CrMo | 4130 | 25CrMo4 | SCM2 | 30CD4 | CDS 13 | – |
| 30CrMoA | – | 32CrMol2
3ICRMo12 |
– | – | – | – |
| 35CrMo | 4135
4137 |
34CrMo4
35CrMo4 |
SCM3 | 35CD4 | 78A37 | 683/1
C35ea C35eb |
| 42CrMo | 4140
4142 |
41CrMo4
42CrMo4 |
SCM4 | 40CD4
42CD4 |
708M40
708A42 709M40 |
683/1
3 |
| 12CrMoV | – | – | – | – | – | – |
| 35CrMoV | – | 35CrMoV5 | – | – | – | – |
| 12CrlMoV | – | 13CrMoV4.2 | – | – | – | – |
| 25Cr2MoVA | – | 24CrMoV5.5 | – | – | – | – |
| 25Cr2MolVA | – | – | – | – | – | – |
| 20CR3MoWVA | – | 21CrVMoW12 | – | – | – | – |
| 38CrMoΛl | 6370 (ΛMS) | 34CrAlMo5
41CrAlMo7 |
SACM645 | 40CAD6.12 | 905M39 | 683/10
41CrAlMo74 |
| 20CrV | 6120 | 22CrV4 | – | 22CrV4 | – | – |
| 40CrV | 6140 | 42CrV | – | 42CrV4 | – | – |
| 50CrVA | 6150 | 50CrV4 | SUPlO | 50CV4 | 735A50 | – |
| 15CrMn | – | 16MnCr5 | – | 16MC5 | – | – |
| 20CrMn | 5120 | 20MnCr5 | SMC21 | 20MC5 | – | – |
| 40CrMn | 5140 | – | SMC3 | – | – | – |
| 20CrMnSi | – | – | – | – | – | |
| 25CrMnSi | – | – | SMKl | – | – | – |
| 30CrMnSi | – | – | – | – | – | – |
| 30CrMnSiA | – | – | – | – | – | – |
| 35CrMnSiA | – | – | SMK2 | – | – | – |
| 20CrMnMo | 4119 | 20CrMo5 | SCM23 | – | – | – |
| 40CrMnMo | 4140 | – | – | – | – | – |
| 20CrMnTi | – | – | SMK22 | – | – | – |
| 30CrMnTi | – | 30MnCrTi4 | – | – | – | – |
| 20CrNi | 3120 | 20NiCr6 | – | 20NC6 | 637A16
637M17 |
– |
| 40CrNi | 3140 | 46NiCr6 | SNCl | 35NC6 | 640A35
640M40 |
– |
| 45CrNi | 3145 | 45NiCr6 | – | – | – | – |
| 50CrNi | 3150 | – | – | – | – | – |
| 12CrNi2 | 3115 | 14NiCrlO | SNC21 | IONCll
14NC11 |
– | – |
| 12CrNi3 | 3310 | 13NiCrl2 | SNC22 | 10NC12
14NC12 |
655A12
655M13 |
– |
| 20CrNi3 | – | 22NiCrl4 | – | 20NC11 | – | – |
| 30CrNi3 | – | 28NiCrlO
31NiCrl4 |
SNC2 | 30NC11
30NC12 |
– | – |
| 37CrNi3 | – | 35NiCrl8 | SNC3 | 35NC15 | – | – |
| 12Cr2Ni4 | E3310 | 14NiCrl8 | – | 12NC15 | – | – |
| 20Cr2Ni4 | E3316 | 22NiCrl4 | – | 20NC14 | 659A15
659M15 |
– |
| 20CrNiMo | 8620
8720 |
20NiCrMo2
21NiCrMo2 |
– | 20NCD2 | 805A20
805M20 |
– |
| 40CrNiMoA | 4340
9840 |
36NiCrMo4
40NiCrMo6 |
SNCM8 | 35NCD5
40NCD3 |
817M40
816M40 |
– |
| 45CrNiMoVA | 4437 | – | SNCM9 | – | – | – |
| 18Cr2Ni4WA | ||||||
| 25Cr2Ni4WA |
PACKING AND DELIVERY
Our products cover carbon steel, galvanized, galvanized and color-coated products. The company enjoys a high reputation in the steel product chain, and our products are exported to the Middle East, Europe, Latin America, South America and Southeast Asian countries.
HONOR CERTIFICATE
FACTORY WORKSHOP
FAQ
Once the products received by customer were found not comply with the products or contract demands, what will you do?
We will compensate the customer for all the loss without any hesitation.
Do you provide samples Is it free or extra?
Yes, we could offer free samples.
What certifications do your products have?
We have ISO 9001, SGS, EWC and other certifications.
What kind of payment terms would you accept?
We always do T/T.30% T/T as deposit,70% T/T as balance.
What is the delivery time?
10-15 days
What is your MOQ?
We will provide Original Mill Usually 25 tonnes, but it can be adjusted according to your needs and the actual situation of the inventory.
