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China Steel - Designations & Grades with Comparisons

Check the China Steel designations and grades below for a variety of China Steel products. If you can’t find the type of China Steel comparison you’re looking for, send us a message with your inquiry and we’ll get back to you with an answer shortly.

Cold Rolled Steel:

Quality GB/T 11253-2007
GB/T 5213-2001
JIS G3141-2005
JIS G3101-2004
EN 10130-2006
EN 10139-1998
DIN 1623-1986
ASTM A1008 / A1008M-05
Commercial Steel Q195 SPCC (T) DC01/ ST12 CS
TYPE A/B/C
Drawing Steel SC1
SC2
SC3
SPCD DC03/ ST13 DS
TYPE A/B
Deep Drawing Steel SPCE DC04/ ST14 DDS

Cold Rolled Steel

Quality: Q195, Q215, Q235

For Chemical Composition & Mechanical Properties of Cold Rolled China Steel refer to the table:

Chemical Composition % Mechanical Properties
Steel Brand C Si Mn P S Elongation % Yield
Strength
Mpa
Tensile
Strength
Mpa
Q195 0.06-0.12 <=0.30 0.25-0.50 <=0.045 <=0.050 >=33 >=195 315-430
Q215 0.09-0.15 <=0.30 0.25-0.55 <=0.045 <=0.050 >=31 >=215 335-450
Q235 0.14-0.22 <=0.30 0.30-0.65 <=0.045 <=0.050 >=26 >=235 375-500

Hot Rolled Steel Designations & Grades with Comparisons:

Quality STANDARD STEEL GRADE
General structural steel (including chequered steel) GB/T 700-2006
EN 10025-2004
JIS G3101-2004
ASTM A36-05
ASTM A573-05
Q235 (A/B/C/D); Q275 (A/B/C/D)
S235JR (ST37-2), S235JO (ST37-3), S275JR (ST44-2)
SS400; SS490
A36
Grade 65; Grade 70
Cold forming steel GB/T 700-2006
EN 10111-2008
JIS G3131-2005
Q195; Q215 (A/B)
DD11 (StW22); DD12 (StW23); DD13 (StW24)
SPHC; SPHD; SPHE
High strength low alloy structural steel GB/T 1591-2008
EN 10028-3-2003
EN 10025-2004
ASTM A572-07
ASTM A588-05
Q345 (A/B/C/D/E); Q390; Q420
P355N
S420N
Grade 50; Grade 60
Grade A; Grade B
Steel for boiler and other pressure vessels GB 713-2008
ASTM A537-08
JIS G3115
Q245R (20g/20R); Q345R (16Mng/16MnR)
Class 1/2/3
SPV235; SPV315; SPV355
Machine structural steel GB/T 699-1999
EN 10083-1
JIS G4051-2005
ASTM A29-05
SAE J403-95
20#; 35#; 45#
C20E; C35E; C45E
S20C; S35C; S45C
1020; 1035; 1045
SAE1020; SAE1035; SAE1045
Steel for ship building LR; ABS, BV, GL, DNV, CCS A/B/D

Hot Rolled Steel

Quality: Q195, Q215, Q235, SPHC

For Chemical Composition & Mechanical Properties of Hot Rolled China Steel refer to the table:

Chemical Composition % Mechanical Properties
Steel Brand C SiS Mn P S Elongation % Yield
Strength
Mpa
Tensile
Strength Mpa
Q195 0.06-0.12 <=0.30 0.25-0.50 <=0.045 <=0.050 >=33 >=195 315-430
Q215 0.09-0.15 <=0.30 0.25-0.55 <=0.045 <=0.050 >=31 >=215 335-450
Q235 0.14-0.22 <=0.30 0.30-0.65 <=0.045 <=0.050 >=26 >=235 375-500
SPHC 0.01-0.06 <=0.05 0.19-0.50 <=0.03 0.001-0.007 >=46 >=305 >=370

Galvanized Steel and Galvalume Steel – China Steel Designations & Grades with Comparisons:

Quality GB/T 2518-2004 JIS
G3302
G3321
EN 10326-2004
EN 10327-2004
ASTM
A653 / A653M
ASTM
A792 / A792M
Commercial
Steel
01 SGCC (SGHC)
SGCH
SGLCC
DX51D+Z/AZ CS
TYPE A/B/C
Forming Steel 02 SGCD1
SGLCD1
FS TYPE A/B
Drawing Steel 03 SGCD2
SGLCD2
DX52D+Z/AZ DDS TYPE A/C
Deep Drawing Steel 04 SGCD3
SGLCD3
DX53D+Z/AZ
Structural Steel 220/250/280/
320/350
SGC (SGH)
340/400/440
SGL400/440
S220/250/280/
320/350GD
+Z / AZ
SS
Grade
33[230]-80[350]

Galvanized Steel and Galvalume Steel

Quality: Q195

For Chemical Composition & Mechanical Properties of Galvanized China Steel refer to the table:

Chemical Composition % Mechanical Properties
Steel Brand C Si Mn P S Elongation % Yield Strength Mpa Tensile Strength Mpa
Q195 0.06-0.12 <=0.30 0.25-0.50 <=0.045 <=0.050 >=33 >=195 315-430

ERW Pipe – China Steel Designations & Grades with comparisons:

STANDARD GRADE APPLICATION
API 5CT J55, K55, N80 Low-Medium Pressure Fluid, Coal Gas Transportation, Heating Steam Supply, Thermoelectricity, Project Construction, Bridge Structure, Oil And Natural Gas Pressure Steel Tube etc.
API 5L GR.B, X42/X46/X52/X56/x60/X70/X80
ASTM A53
ASTM A252
ASTM A500
GR.A / GR.B / GR.C GR.1/2/3

Seamless Pipe – China Steel Designations & Grades with comparisons:

STANDARD STEEL GRADE APPLICATION
APPLICATION J55, K55, N80, L80, P110 Specification for Casing and Tubing
API 5L A, B, X42/X46/X52/X56 Specification for Line Pipe
ASTM A53 GR.A / GR.B Black Steel Pipe
ASTM A106 GR.A / GR.B Seamless Carbon Steel For High Temperature Service
ASTM A179 LOW CARBON STEEL Seamless Cold-Drawn Low-Carbon Steel Heat Exchanger And Condenser Tubes
Available Length: Random of 5-14m, we also can process the fixed 5.8m or 11.8m lengths.

For Mechanical Properties of Seamless Pipe China Steel refer to the table:

NO SERIES DESCRIPTION OF GOODS RAW MATERIAL SIZE (mm) PRECISION
O.D. THICKNESS
1 HOLLOW FORGING HOLE-DRILLING HOLLOW FORGING 10#, 20#, 35#, 45#, 20-35CrMo, 20-40Cr 51-96 2.7-15.0 TRADE STANDARD
2 COLD DRAWING PIPE STRUCTURAL PIPE 10#, 20#, 35#, 45# 20-76 1.0-11.0 GB/T8162-1999
3 DUCT LIQUID PIPE 10#, 20#, 20G, 20A 16-76 1.5-6.0 GB/T8163-1999
4 LOW MEDIUM PRESSURE BOILER TUBE 10#, 20#, 20A, 20G 25-76 1.5-6.0 GB3087-1999
5 SUPERIOR DRAWING PIPE SUPERIOR PULLING PIPE 20# 20-35CrMo, 20-40Cr 3-57 0.5-5.0 CLEANLINESS: Ra3.2 O.D.: +/- 0.02mm ENDOPORE: +/- 0.02mm
6 WELDING PIPE SEAMLESSNESS Q195~235 SPHC SPCC, 0.8AL, H08 10-57 0.5-5.0

Galvanized Pipe – China Steel Designations & Grades with comparisons:

STANDARD SIZE (O.D*W.T) GRADE APPLICATION
ASTMA53
BS 1387
EN 10255
ɸ 21-219.1*1-8.18mm GR.A/B
S195T
S235
HOT-DIP ZINC COATED STEEL PIPE (WELDED AND SEAMLESS)

Square Tube and Rectangular Tube – China Steel Designations & Grades with comparisons:

STANDARD GRADE APPLICATION
EN10219,
ASTM A500,
JIS3466,
GB/T6728, GB/T6725
S235JR, S275JR
GR.A, GR.B
SS400, SS490
Q195, Q235
LARGE BUILDINGS, LARGE
EQUIPMENTS, BRIDGE
AND STEEL
STRUCTURE, etc.
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