Standard:GB3274-88,GB711,JIS G3101,JIS G3106,JIS G4051,DIN17100,ASTM,BS4360,EN10083-2,EN10025
Thickness: 8mm-400mm
Width: 1500mm-4020mm
Length:3000mm-18000mm
Ordinary carbon plates is a kind of common structure steel plate, the iron content is more than 99%, and carbon content is less than 0.21%. The main composition of general carbon plate is C, Si, Mn, S and N, H, O etc. Usually, the ferroalloy carbon content less than 4.5% is called steel; while the ferroalloy carbon content more than 4.5% is called iron. Actually, steelmaking is a process of removing excess carbon. For example, Q235A/B/C/D Q295A/B/C/D are general carbon steel plate.
Carbon structural steel hot rolling medium plate (GB/T73274-1988, GB/T700-1988)
Ordinary Carbon PlateCarbon structural steel hot rolling medium plate (GB/T73274-1988, GB/T700-1988)
| Mechanical Processing Property | ||||||||||
| Grades | Yield Strength(Mpa) | Tensile strength(Mpa) | Elongation ratio after fracture (%) | Impact test |
Bending test b＝2a 180℃ |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Thickness | Steel thickness | Temperature |
temperature，impact，AKV (lengthways)，J |
|||||||
| ≤16 | ﹥16-40 | ﹥40-60 | ≤16 | ﹥16-40 | ﹥40-60 | |||||
| No less than | No less than | No less than | ||||||||
| Q235-A | 235 | 225 | 215 | 375~500 | 26 | 25 | 24 | - | - | Lengthways d＝a |
| Q235-B | 20 | 27 | Crosswise d＝1.5a | |||||||
| Chemical Composition | ||||||||||
| Grade | C | Si | Mn | P | S | Cr | Ni | Cu | ||
| Q235-A | 0.14～0.22 | 0.12～0.30 | 0.30～0.65 | ≤0.045 | ≤0.050 | ≤0.30 | ≤0.30 | ≤0.30 | ||
| Q235-B | 0.12～0.20 | 0.12～0.30 | 0.30～0.70 | ≤0.045 | ≤0.045 | ≤0.30 | ≤0.30 | ≤0.30 | ||
Remarks:
Carbon structural steel is carbon steel of carbon content less than 0.8%, which content of S, Pi and non-metallic is less than carbon structural steel, and mechanical performance is good.
According to carbon content, carbon structural steel can be divided into low carbon steel (C≤0.25%), medium carbon steel (C is 0.25-0.6%) and high carbon steel (C＞0.6%).
According to Mn content, carbon structural steel includes normal Mn content (0.25%-0.8%) and higher Mn content (0.70%-1.20%), and the latter has good mechanical properties and process ability.
According to carbon content, carbon structural steel can be divided into low carbon steel (C≤0.25%), medium carbon steel (C is 0.25-0.6%) and high carbon steel (C＞0.6%).
According to Mn content, carbon structural steel includes normal Mn content (0.25%-0.8%) and higher Mn content (0.70%-1.20%), and the latter has good mechanical properties and process ability.
 Carbon Structural Steel Plate |
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| Q235-Q275(A,B,C) | GB3274-88 | Specification and delivery term | Main Applications |
|---|---|---|---|
|
10-55 20Mn-50Mn |
GB711and |
1、Specification ranges: Thickness: 8mm-400mm Width: 1500mm-4020mm Length:3000mm-18000mm， Max weight: 25T； 2、Delivery state: According to customers’ requirements, steel plate can be hot rolling, controlled rolling, normalizing, annealing, tempering, NT and hardening and tempering； 3、Flaw detection and thickness performance: Producing additional flaw detection requirements and tear resistant(thickness direction performance), also can supply Z performance steel plate based on ASTM、A770 standards. |
It is used to make various kinds of steel rivet, bolt and welding structure. |
| SS400 | JIS G 3101 | ||
| SM400(A,B) | JIS G 3106 | ||
| S10C-S55C | JIS G 4051 | ||
| St37-2, St37-3 | DIN17100 | ||
|
A36, A283（A, B, C, D） 1010-1050 |
ASTM | ||
| 40（A, B, C, D, EE） | BS4360 | ||
| S235(JR, JO, J2G3, J2G4) | EN10025 | ||
|
1C22, 1C25, 1C30, 1C35 1C40, 1C45, 1C50, 1C55 |
EN10083-2 | ||
| Fe360(A, B, C, D) | ISO630 | ||