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	SC1 SC2 SC3	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	DX51D+Z/AZ	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	DDS TYPE A/C
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
NO	SERIES	DESCRIPTION OF GOODS	RAW MATERIAL	O.D.	THICKNESS	PRECISION
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	SUPERIOR DRAWING PIPE	WELDING PIPE SEAMLESSNESS	Q195~235 SPHC SPCC, 0.8AL, H08	10-57	0.5-5.0	CLEANLINESS: Ra3.2 O.D.: +/- 0.02mm ENDOPORE: +/- 0.02mm

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.