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ASTM A572 Grade 50  Specifications
A572/A 572M - 07

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ASTM A572 Grade 42  Specifications
A572/A 572M -07

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A572 gr 50 Bridge Plates A572 gr 50 Bridge Truss Plates & Stiffeners A572 gr 50 Gussets & Gusset Plates

ASTM A572 / A 572M - 07 covers the standard requirements for Grades 42, 50, 55, 60, and 65 for high-strength low-alloy columbium-vanadium structural steel shapes, plates, sheet piling, and bars for applications in bolted, riveted and welded structures in bridges and buildings. The steel shall be semi-killed or killed. The use of columbium, vanadium, titanium, or combinations thereof shall meet the requirements of the producers and A572 specifications. A572 Gr. 50, Gr. 42, Gr. 60, and Gr. 65 steel plates and bars from Precision Grinding, Inc. carry certified MTRs from well-known, U.S. and worldwide plate manufacturers. If you need further assurances, we can supply Charpy Test coupons. Please, visit www.astm.org for a complete list of specifications for ASTM grades of plate. Precision Grinding has been providing Steel Plate & Bar Services from our Birmingham, AL location for over 40 years..

Grade of Steel Max Thickness  Carbon Max Manganese Max Phosphorus Max Sulfur Max Yield Point Min ksi Yield Point Min [MPa] Tensile Strength ksi Tensile Strength [MPa]
A572 42  6"  0.21 %  1.35 % 0.04 %  0.05 % 42  [290] 60 ksi [415]
A572 50  4"  0.23 % 1.35 %  0.04 % 0.05 %  50  [345] 65 ksi [450]

Of interest to note from ASTM specifications: The min. yield points covered by Grades 42 [290], 50 [345] and 60 [415]  are the yield strengths most closely approximating a geometric progression pattern between those min. yield points between 36ksi, ASTM A36 [250MPa] and 100ksi, ASTM A514 [690 MPa].

A572 Gr 50 Steel Plate Available from Precision Grinding - Custom Steel Parts

Grade Fractional Inches Decimal  
ASTM Steel thickness thickness  
A572-50 1/2" 0.5" Precision Grinding, Inc. is your 
A572-50 5/8" 0.625" ONE-STOP SHOP 
A572-50 3/4" .75" for Custom Steel Parts. 
A572-50 1" 1.0"  
A572-50 1 1/8" 1.125" Large Inventory A36, A572 Plate, A516, A514-T1 
A572-50 1 1/4" 1.25" 1020, 1045, 4140, and other hot roll plate 
A572-50 1 3/8" 1.375" on-site, inside our 60,000 square foot plant. 
A572-50 1 1/2" 1.5"  
A572-50 1 5/8" 1.625" We take pride in pulling plate from inventory,
A572-50 1 3/4" 1.75"  
A572-50 2" 2.0" Flame cutting and Plasma cutting to size,
A572-50 2 1/4" 2.25" Blanchard and Surface Grinding to thickness,
A572-50 2 1/2" 2.5" Machining and Milling to engineered specs, 
A572-50 2 3/4" 2.75" and Fabricating Weldments
A572-50 3" 3.0" to your custom order. 
A572-50 3 1/4" 3.25"
A572-50 3 1/2" 3.5" Please, call us at 1.888.934-7463 (toll free) 
A572-50 3 3/4" 3.75" with your next steel plate request. 
A572-50 4" 4.0"
A572-42 4 1/4" 4.25" Call for A572 Gr. 42 Inventory Stock Request
A572-42 4 1/2" 4.5" Paint Identification Colors, though no longer
A572-42 5" 5.0" part of specifications, are sometimes still in use.
A572-42 5 1/4" 5.25"  
A572-42 5 1/2" 5.5" A572 Steel Plate Grade 50,  Green & Yellow
A572-42 6" 6.0" A572 Grade 42, White & Green
ASTM A572-50 Sheets  2" x 48" x 96"
ASTM A572 Grade 50
High Strength A572 Steel Parts. Flame Cut & Plasma Cut
Plates Cut to size
Large Blanchard Grinders & Large Surface Grinders
Grinding / Machining
Large CNC Machines & Large Horizontal Mills
Large CNCMachining

Other common, similar HSLA chemistry plates include AISI 1018 and ASTM A588.  1018 steel is a carbon/manganese based specification that precludes the addition of columbium and vanadium. Higher yield strength grades with minimum yields from 45 ksi - 70 ksi  may be specified as 1018 HSLAS. A588 is normally specified when greater corrosion resistance properties are required. ASTM A588/A 588M specifications cover up to 8 inches thick. Specification A588 should not be substituted for A572 without agreement between parties. 

http://www.ul.ie/~childsp/CinA/Issue65/TOC43_Columbian.htm very interesting article about Columbium

http://minerals.usgs.gov/minerals/pubs/commodity/niobium/ world facts about Columbium

http://en.wikipedia.org/wiki/Vanadium wiki Vanadium article

We Cut and Grind A572 50 Plate and Bar to the dimensional sizes and tolerances that you specify. Please, call or email us with your next RFQ for A572, A36, A514, A516, 1020, 1045, 4140, A2, D2, S7, or any other grade of Carbon steel or Tool steel. Our specialty is Thick and Heavy Steel Plate & Bar. Heavy Plate Flame Cutting operations, an 8' x 8' x 14' Stress Relieving Oven, 10 Large Grinders, large Horizontal Mills, large CNC Vertical Machining Centers, and Welding Shop services are located within our plant in Birmingham, Alabama. We've been Grinding Steel parts for over 40 years, and you can trust us to deliver your parts to you on time, as ordered.

Charpy Impact test, Charpy v-notch test coupons and/or Test Results can be made available.

Broadly stated, the Charpy Impact test is performed in order to verify the material's toughness.

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