A653 steel

A653 steel has a wide range of uses, so why is it so popular? The reason is mainly due to the galvanizing layer and zinc content, which give it excellent corrosion resistance. It is a high-strength, low-alloy steel. Therefore, they are often used in outdoor hardware such as outdoor signs, trash cans, heating and cooling systems, and electrical protection. So, the ASTM A653 standard is used worldwide to ensure that the steel produced meets certain quality requirements and has consistency and reliability.

For example, this material has a unique sequin pattern, so it changes on each sheet or coil. In addition, these materials can be purchased at Wanzhi Steel. Then this article will introduce the specifications, classifications, and advantages of A653 and equivalent specifications. Then, Please read on.

Product Details

Product Name	A653 Steel
Thickness	Cold rolled:0.3~3.0mm; hot rolled:1.8-2.0mm;
Width	600mm to 2,000mm
Coating Thickness Designation	Zn coating: G20, G30, G40, G60, G90, G115,G140, G165, G185, G210.
	Alloy coating: A25, A40, A60.
Spangle	Zero spangles (0.12-2.0 mm), 0.7-4 mm with small spangles, regular (big) spangles, big spangle
Zinc Layer Thickness	30 g/m2-275 g/m2
Material	DX51D + Z, DX52D + Z, DX53D + Z, DX54D + Z, DC51D + Z, DC52D + Z; SGCC; S350GD, etc.
Standard	AISI, ASTM, BS, DIN, GB, JIS
Structural Steel Grades	SS33, SS37, SS40, SS 50A class1, SS 50B class 2, SS 50class3, SS 80
Surface Treatment	Passivation(C), Oiling (O), Lacquer sealing(L), Phosphating(P), Untreated(U)
Certificates	SGS, BV, ISO 9001
Packaging	Standard export package or as per your requirements
Delivery Time	5-25 working days after payment, mainly depending on order quantity

A653 steel thickness tolerance

Thickness(mm)	allowable deviation		Width
	Up	Down	≤1000	＞1000~≤1300
0.1	0.03	0.03
0.15	0.04	0.04
0.2	0.05	0.05
0.25	0.05	0.05
0.3			0.03	—
0.4			0.04	0.04
0.5	0.08	0.08
0.5			0.045	0.05
0.6			0.05	0.05
0.75	0.1	0.1
0.8			0.05	0.05
1	0.13	0.13
1			0.055	0.06
1.2			0.08	0.08
1.25	0.13	0.13
1.5			0.08	0.08
1.75	0.15	0.15
2	0.18	0.18
2			0.1	0.1
2.25	0.2	0.2
2.5	0.23	0.23
2.5			0.1	0.11
2.75	0.25	0.25
3	0.25	0.25
3			0.13	0.13
3.25	0.3	0.3
3.5	0.3	0.3
3.75	0.36	0.36
4	0.36	0.36
4			0.17	0.17
4.99	0.36	0.36
5			0.17	0.17
6			0.17	0.2
8			0.17	0.22

 

 

A653 steel Scope of the Standard

1. Firstly, the ASTM A653 standard covers hot-dip galvanized pure zinc and zinc-iron alloy-coated steel strips delivered in coils or as cut-to-length products.

2. Secondly, the standard specifies requirements for the chemical composition, mechanical properties, physical properties, and processing properties of hot-dip galvanized steel sheets and strips.

What is A653 steel?

In detail, it is a standard developed by the ASTM ( American Society for Testing and Materials ) to evaluate the quality of hot-dip galvanized steel sheets and strips. While A-653 is one of the ASTM branch standard numbers. The standard for hot-dipped galvanized iron alloy or galvanized steel sheet is ASTM A653.

Types Of A653 Steel 

In summary, A653 Steel Galvanized Sheet is available in metallurgical designations, providing different degrees of formability and strength to the base sheet:

Types
Commercial steel	CS ( CSA, CSB, CSC )
Forming steel	FS ( FSA, FSB )
Deep drawing steel	DDS ( DDSA, DDSC )
Extra deep drawing steel	EDDS
Structural steel	SS
High strength low alloy steel	HSLAS (HSLAS Type A,B,F)
Solution hardened steel	SHS
Bake hardenable steel	BHS

ASTM A653 steel equivalent

It is an American standard, which is equivalent to the Japanese JIS G 3302, in the meantime, Europe EN 10346. Specifically, It remains a hot-dip galvanized steel sheet with a coating thickness of 0.3 oz/square inch. What’s more, the material has general specifications.

While, the American standard is special. There are both metric weight units (g/m2) such as Z90 and British weight units (oz/ft2) such as G90. Meanwhile, the weight difference between the two is about 3 times.

What is ASTM A653 G90 specification

For example, ASTM A653 G90 is equivalent to the ASTM A653 specification, and “G90” refers to the galvanized layer. Meanwhile, G90 represents the meaning that the sum of the two-sided zinc coating is 0.9 oz/ft2 (the average minimum value of three points on both sides) or 0.8 oz/ft2 (the smallest single point on both sides) value.

Advantages Of A653 Steel 

Hot-dip galvanized thin-coated materials

Hot-dip galvanized thin-coated materials provide good welding and processing capabilities. Thus, it can be used for a variety of purposes, ranging from casual use to detailed drawing.

Thick galvanized hot-dip galvanized materials
Due to the corrosion resistance is strong in thick galvanized hot-dip galvanized materials. So you can employ a variety of applications by selecting spangles and post-processing functions,

Hot-dip alloy steel
Hot-dip alloy steel has strong corrosion resistance, excellent coating adhesion, and ductility, which make it perform well during processing. Therefore, it has the advantage of having a lovely appearance and being able to be employed in applications where the surface is not painted.

Chemical Composition Of A653 Steel 

The ASTM A653 standard specifies requirements for the chemical composition of steel plates and strips, in detail, it includs the content of carbon, manganese, phosphorus, sulfur, and other elements to ensure the strength and corrosion resistance of the steel.

Designation	Carbon	Manganese	Phosphorus	Sulfur	CuB	Ni B	CrB	MoB	vC	CBC, D	Ti
Ss Grade
33[230]	0.20	…	0.04	0.04	0.20	0.20	0.15	0.06	0.008	0.008	0.30
37[255]	0.20	…	0.10	0.04	0.20	0.20	0.15	0.06	0.008	0.008	0.30
40[275	0.25	…	0.10	0.04	0.20	0.20	0.15	0.06	0.008	0.008	0.30
50[340] Class 1 and 2	0.40	…	0.20	0.04	0.20	0.20	0.15	0.06	0.008	0.008	0.30
50[340] Class 3	0.50	…	0.04	0.04	0.20	0.20	0.15	0.06	0.008	0.008	0.30
80[550]	0.20	…	0.04	0.04	0.20	0.20	0.15	0.06	0.008	0.008	0.30
HSLAAS Type A
40[275]	0.20	1.20	…	0.035	…	0.20	0.15	0.06	0.008	0.008	0.30
50[340]	0.20	1.20	…	0.035	0.20	0.20	0.15	0.06	0.008	0.008	0.30
60[410]	0.20	1.35	…	0.035	0.20	0.20	0.15	0.06	0.008	0.008	0.30
70[480]	0.20	1.65	…	0.035	0.20	0.20	0.15	0.06	0.008	0.008	0.30
80[5501	0.20	1.65	…	0.035	0.20	0.20	0.15	0.06	0.008	0.008	0.30
HSLAS Type B5F
40[275]	0.15	1.20	…	0.035	…	0.20	0.15	0.06	0.008	0.008	0.30
50[340]	0.15	1.20	…	0.035	0.2	0.21	0.15	0.06	0.008	0.008	0.30
60[410]	0.15	1.20	…	0.035	0.20	0.22	0.15	0.06	0.008	0.008	0.30
70[480]	0.15	1.65	…	0.035	0.20	0.23	0.15	0.06	0.008	0.008	0.30
80[550]	0.15	1.65	…	0.035	0.20	0.24	0.15	0.06	0.008	0.008	0.30

Physical Properties Of A653 Steel 

Its requirements include coating weight, zinc layer adhesion, as well as hardness, bending performance and cold bending performance, etc., to ensure that galvanized steel sheets and strips have good corrosion resistance and service life in various use environments.

Mechanical properties of a653 steel

In terms of mechanical properties, the ASTM a653 standard specifies requirements for steel such as tensile strength, yield strength, as well as elongation. These requirements are intended to ensure that the steel has high strength and toughness during use.

CLASSIFICATION	TYPE	YIELD STRENGTH (Mpa) Min.	TENSILE STRENGTH (Mpa) Min.	ELONGATION in 50mm Min. (%)
ASTM A653	CS type A	170/380	–	≥ 20
	CS type B	205/380	–	≥ 20
	CS type C	170/410	–	≥ 15
	FS type A	170/310	–	≥ 26
	FS type B	170/310	–	≥ 26
	DDS	140/240	–	≥ 32
	EDDS	105/170	–	≥ 40
	SS-Gr 230/Gr A/ Gr 33	230	310	20
	SS-Gr 255/Gr B/ Gr 37	255	360	18
	SS-Gr 275/Gr C/ Gr 40	275	380	16
	SS-Gr 340 C1/Gr D/ Gr 50	340	450	12
	SS-Gr 340 C2/Gr E/ Gr 50	340	–	12
	SS-Gr 340 C3/Gr F/ Gr 50	340	480	12
	SS-Gr 550/Gr E/ Gr 80	550	570	–

Chemical composition and physical properties of hot-dip zinc-coated Galvanized Structural Steel

SS GRADES	C max	P max	S max	Mn max	Yield strength, min ksi	Tensile strength, min ksi	Elongation, min %
Grade 33	0.20	0.10	0.04	1.35	33	45	20
Grade 37	0.20	0.10	0.04	1.35	37	52	18
Grade 40	0.25	0.10	0.04	1.35	40	55	16
Grade 50 class1	0.25	0.20	0.04	1.35	50	65	12
Grade 80 Class1	0.25	0.04	0.04	1.35	80	82	–
GRADE CSA	0.10	0.03	0.035	0.60	25-55	50-65	20-40

Performance parameters of different grades of A653 steel

Quality			Chemical Composition, Max %					Yield Strength min, Ksi	Tensile Strength min, Psi	Elongation in 2″ min, %
			C	Min	P	S	Cu
Commercial Quality (A526)			0.15	0.60	0.04	0.040	0.20		–	—
Lock Forming Quality(A527)			0.15	0.60	0.04	0.040	0.20		–	—
Drawing Quality (A528)			0.1	0.50	0.03	0.035		–	–	—
Drawing Quality Special Killed (A642)			0.1	0.50	0.03	0.035		–	–	—
Structural Quality (A 446)	Grade 33(A)		0.20	–	0.40	0.04	0.20	33	45	20
	Grade 37 (B)		0.20	–	0.10	0.04	0.20	37	52	18
	Grade 40 ( c)		0.25	–	0.10	0.04	0.20	40	55	16
	Grade 50	Class 1(D)	0.40	–	0.20	0.04	0.20	50	65	12
		Class2 (D)	0.40	–	0.20	0.04	0.20	50	–	12
		Class 3 (F)	0.50	–	0.04	0.04	0.20	50	70	12
	Grade 80 (E)		0.20	–	0.04	0.04	0.20	80	82	–
High Strength low-alloy (A816)	Grade 50	Type I	0.20	1.20	—	0.035	0.20	50	60	20
		Type II	0.15	1.20	—	0.035	0.20	50	60	22
	Grade 60	Type I	0.20	1.35	—	0.035	0.20	60	70	16
		Type II	0.15	1.20	—	0.035	0.20	60	70	18
	Grade 70	Type I	0.20	1.65	—	0.035	0.20	70	80	12
		Type II	0.15	1.65	—	0.035	0.20	70	80	14
	Grade 80	Type I	0.20	1.65	—	0.035	0.20	80	90	10
		Type II	0.15	1.65	—	0.035	0.20	80	90	12

 Applications of A653 steel

Due to this steel is excellent for Welding, Drilling, Machining, Shearing, and Forming. So that Its uses include：

• Skin frames, truck beds;
• Toolboxes, trash cans
• Trays, drip trays;
• Outdoor hardware;
• Heating/cooling systems;
• Electrical protection;
• Decorative applications

A653 Steel golden supplier—Wanzhi Steel

Besides, A653 Steel is widely used in construction, roof tiles, ceilings, and other fields. It is favored for its good corrosion resistance and strength. In a word, it is a high-quality and versatile hot-dip galvanized steel.

Wanzhi factory supplies and stocks an extensive inventory of galvanized sheets and coils, especially ASTM A653 Hot Dipped Galvanized sheets, A653 Grade SS33, and ASTM A653 Grade 60 with four spangle surfaces.

Just let us know the size and quantity of your need, so we can help you find the right material for you!