ASTM A572/A572M : 12a

Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel

Standard Details

1.1 This specification covers five grades of high-strength low-alloy structural steel shapes, plates, sheet piling, and bars. Grades 42 [290], 50 [345], and 55 [380] are intended for riveted, bolted, or welded structures. Grades 60 [415] and 65 [450] are intended for riveted or bolted construction of bridges, or for riveted, bolted, or welded construction in other applications.

1.2 For applications, such as welded bridge construction, where notch toughness is important, notch toughness requirements are to be negotiated between the purchaser and the producer.

1.3 Specification A588/A588M shall not be substituted for Specification A572/A572M without agreement between the purchaser and the supplier.

1.4 The use of columbium, vanadium, titanium, nitrogen, or combinations thereof, within the limitations noted in Section 5, is required; the selection of type (1, 2, 3, or 5) is at the option of the producer, unless otherwise specified by the purchaser. (See Supplementary Requirement S90.)

1.5 The maximum thicknesses available in the grades and products covered by this specification are shown in Table 1.

TABLE 1 Maximum Product Thickness or Size

Grade	Yield Point, min		Maximum Thickness or Size					Zees and Rolled Tees
	ksi	[MPa]	Plates and Bars		Structural Shape Flange or Leg Thickness		Sheet Piling
	ksi	[MPa]	in.	[mm]	in.	[mm]	Sheet Piling
42 [290]^A	42	[290]	6	[150]	all	all	all	all
50 [345]^A	50	[345]	4^B	[100]^B	all	all	all	all
55 [380]	55	[380]	2	[50]	all	all	all	all
60 [415]^A	60	[415]	1¹/₄ ^C	[32]^C	2	[50]	all	all
65 [450]	65	[450]	1¹/₄	[32]	2	[50]	not available	all

^A In the above tabulation, Grades 42, 50, and 60 [290, 345, and 415], are the yield point levels most closely approximating a geometric progression pattern between 36 ksi [250 MPa], min, yield point steels covered by Specification A36/A36M and 100 ksi [690 MPa], min, yield strength steels covered by Specification A514/A514M.

^B Round bars up to and including 11 in. [275 mm] in diameter are permitted.

^C Round bars up to and including 3¹/₂ in. [90 mm] in diameter are permitted.

1.6 When the steel is to be welded, a welding procedure suitable for the grade of steel and intended use or service is to be utilized. See Appendix X3 of Specification A6/A6M for information on weldability.

TABLE 2 Chemical Requirements^A (Heat Analysis)

Diameter, Thickness, or Distance Between Parallel Faces, in. [mm] Plates and Bars	Structural Shape Flange or Leg Thickness, in. [mm]	Grade	Carbon, max, %	Manganese,^B max, %	Phosphorus, max, %	Sulfur, max, %	Silicon
							Plates to 1¹/₂ in. [40 mm] Thick, Shapes with Flange or Leg Thickness to 3 in. [75 mm] inclusive, Sheet Piling, Bars, Zees, and Rolled Tees^C	Plates Over 1¹/₂ in. [40 mm] Thick and Shapes with Flange Thickness Over 3 in. [75 mm]
							max, %	range, %
6 [150]	all	42 [290]	0.21	1.35^D	0.04	0.05	0.40	0.15–0.40
4 [100]^E	all	50 [345]	0.23	1.35^D	0.04	0.05	0.40	0.15–0.40
2 [50]^F	all	55 [380]	0.25	1.35^D	0.04	0.05	0.40	0.15-0.40
1¹/₄ [32]^F	≤2 [50]	60 [415]	0.26	1.35^D	0.04	0.05	0.40	^G
>¹/₂ – 1¹/₄ [13–32]	>1-2 [25-50]	65 [450]	0.23	1.65	0.04	0.05	0.40	^G
≤¹/₂ [13]^H	≤ 1^H	65 [450]	0.26	1.35	0.04	0.05	0.40	^G

^A Copper when specified shall have a minimum content of 0.20 % by heat analysis (0.18 % by product analysis).

^B Manganese, minimum, by heat analysis of 0.80 % (0.75 % by product analysis) shall be required for all plates over ³/₈ in. [10 mm] in thickness; a minimum of 0.50 % (0.45 % by product analysis) shall be required for plates ³/₈ in. [10 mm] and less in thickness, and for all other products. The manganese to carbon ratio shall not be less than 2 to 1.

^C Bars over 1¹/₂ in. [40 mm] in diameter, thickness, or distance between parallel faces shall be made by a killed steel practice.

^D For each reduction of 0.01 percentage point below the specified carbon maximum, an increase of 0.06 percentage point manganese above the specified maximum is permitted, up to a maximum of 1.60 %.

^E Round bars up to and including 11 in. [275 mm] in diameter are permitted.

^F Round bars up to and including 3¹/₂ in. [90 mm] in diameter are permitted.

^G The size and grade is not described in this specification.

^H An alternative chemical requirement with a maximum carbon of 0.21 % and a maximum manganese of 1.65 % is permitted, with the balance of the elements as shown in Table 2.

1.7 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system is to be used independently of the other, without combining values in any way.

TABLE 3 Alloy Content

Type^A	Elements	Heat Analysis, %
1	Columbium	0.005–0.05^B
2	Vanadium	0.01–0.15
3	Columbium Vanadium Columbium plus vanadium	0.005-0.05^B 0.01–0.15 0.02–0.15^C
5	Titanium Nitrogen Vanadium	0.006-0.04 0.003–0.015 0.06 max

^A Alloy content shall be in accordance with Type 1, 2, 3, or 5 and the contents of the applicable elements shall be reported on the test report.

^B Product analysis limits = 0.004 to 0.06 %.

^C Product analysis limits = 0.01 to 0.16 %.

1.8 The text of this specification contains notes or footnotes, or both, that provide explanatory material. Such notes and footnotes, excluding those in tables and figures, do not contain any mandatory requirements.

TABLE 4 Tensile Requirements^A

Grade	Yield Point, min		Tensile Strength, min		Minimum Elonga- tion, % ^B^,^C^,^D
Grade	ksi	[MPa]	ksi	[MPa]	in 8 in. [200 mm]	in 2 in. [50 mm]
42 [290]	42	[290]	60	[415]	20	24
50 [345]	50	[345]	65	[450]	18	21
55 [380]	55	[380]	70	[485]	17	20
60 [415]	60	[415]	75	[520]	16	18
65 [450]	65	[450]	80	Status : Historical Standard Type: Main Document No: ASTM A572/A572M : 12a Document Year: 2012 Pages: 4 Edition: a Section Volume: 01.04 Volume 01.04 Steel--Structural, Reinforcing, Pressure Vessel, Railway ICS: 77.140.10 Heat-treatable steels Preview Document Life Cycle Historical ASTM A572/A572M : 13 Historical ASTM A572/A572M : 13a Historical ASTM A572/A572M : 15 Historical ASTM A572/A572M : 18 Historical ASTM A572/A572M : 21 ACTIVE ASTM A572/A572M : 21e1 Currently Viewing Historical ASTM A572/A572M : 12a Historical ASTM A572/A572M : 12 Historical ASTM A572/A572M : 07 Historical ASTM A572/A572M : 06 Historical ASTM A572/A572M : 04 Historical ASTM A572/A572M : 03ae1 Historical ASTM A572/A572M : 03a Historical ASTM A572/A572M : 03 Historical ASTM A572/A572M : 02 Historical ASTM A572/A572M : 01 Historical ASTM A572/A572M : 00a Knowledge Corner Expand Your Knowledge and Unlock Your Learning Potential - Your One-Stop Source for Information! The Corporate About BSB Edge Vision & Mission Our Journey - Milestones Our Clientele CSR Activities Contact Us Useful Links FAQ’s Privacy Policy Terms & Conditions Products & Services ASME BPVC ASME Boiler and Pressure Vessel Code - Revision Tracker with Synopsis (RTwS) ASTM Book of Standards eCatalogs / eBrochures Free Downloads Standards e-Pedia Standards By Publisher ACI Standards AFNOR Standards AIAG Standards API Standards ASHRAE Standards ASM Standards ASME Standards ASNT Standards ASTM Standards AWWA Standards Read More Connect With US Support Desk Customer Feedback News and Events © Copyright 2024 BSB Edge Private Limited. Add Standards To Trackedge To add “” to our tracker and get updates about it as and when it changes, kindly LOGIN, REGISTER or JUST ENTER YOUR EMAIL ID in below field so that we keep you informed about changes to the standards of your interest. This document is available for free download. Free documents cannot be added to the cart. Please download the Document using this link. Enquire now + Enquiry Form Full Name E-mail Address Phone Organisation Select Enquiry Type This Website Uses Cookies to Manage Services The BSB Edge Pvt. Ltd. takes your privacy very seriously and respects the importance of security on the internet. BSB Edge websites use cookies and similar technologies for various purposes including to distinguish you from other users of our websites. By continuing to use our websites, you agree to our cookie policy. What cookies do we use? Cookies are text files containing small amounts of information. They are downloaded to your computer or device when you visit a website. They don’t tell us who you are but they do enable us to recognise your device and where you have made various preferences or actions they enable us to remember them. Why do we use cookies? Cookies do lots of different jobs, like letting you navigate between web pages efficiently, remembering your preferences, and generally improving your experience of our websites. They can also help to ensure that adverts you see online are more relevant to you and your interests. Disabling cookies BSB Edge websites are designed to function optimally with cookies enabled. You can, however, disable cookies via your website browser settings. This may mean, however, that you may no longer have access to some of our website features. Please note that even with all cookies disabled, a tiny amount of information will continue to be retrieved from your web browser. This information is necessary for the basic functioning of our website. Contact us If you have any questions about our cookie policy you can contact us at: info@bsbedge.com

ASTM A572/A572M : 12a

Standard Details

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