Flat Bars & Plates

CSA G40.21 Gr.50W Flat Bars

CSA G40.21 Grade 50W flat bars, notable for a minimum yield strength of 50 ksi, are engineered for weldability, making them perfect for the structural anchoring market. Ideal for fabricating diverse sizes and thicknesses of anchor plates, their high-strength steel composition supports a broad spectrum of anchoring applications. These bars are pivotal in construction, offering essential support for buildings, bridges, and infrastructure, where welding is crucial for assembly and durability. Their mechanical prowess and weldability ensure they are a preferred choice for robust and reliable anchoring solutions.

CSA G40.21 Gr.50W Specifications

Available diameters: Many diameters & thickness available

Please check with our account managers for availability and/or feasibility.

CSA G40.21 Grade 50W chemical & mechanical requirements are ruled by ASTM A6.

TABLE 26 Permitted Variations in Sectional Dimensions for Square-Edge and Round-Edge Flat Bars
Specified Widths, in.	Permitted Variations Over or Under Specified Thickness, for Thicknesses Given in Inches, in.							Permitted Variations From Specified Width, in.
	0.203 to 0.230	0.230 to 1/4	1/4 to 1/2	Over 1/2 to 1	Over 1 to 2	Over 2 to 3	Over 3	Over	Under
	excl	excl	incl	incl	incl	incl	Over 3	Over	Under
To 1, incl	0.007	0.007	0.008	0.010	***	***	***	1/64	1/64
Over 1 to 2, incl	0.007	0.007	0.012	0.015	1/32	***	***	1/32	1/32
Over 2 to 4, incl	0.008	0.008	0.015	0.020	1/32	3/64	3/64	1/16	1/32
Over 4 to 6, incl	0.009	0.009	0.015	0.020	1/32	3/64	3/64	3/32	1/16
Over 6 to 8, incl	^A	0.015	0.016	0.025	1/32	3/64	1/16	1/8^B	3/32^B

This table is inspired by ASTM A6-22 Table 26

NOTE 1: Where “***” appears in this table, there is no requirement.

A Flats over 6 to 8 in., incl, in width are not available as hot-rolled carbon steel bars in thickness under 0.230 in.
B For flats over 6 to 8 in., in width, and to 3 in. incl in thickness.

The CSA G40.21 Grade 50W standard does not specify particular requirements for coating or finishing, leaving flexibility for different applications and preferences.

At Boulons Plus, we understand the importance of meeting diverse project needs and offer our clients the choice between bare steel and hot-dip galvanized finishes in compliance with ASTM F2329.

This option ensures that our clients can select the most suitable protection against corrosion and environmental wear for their specific application, ensuring longevity and durability in their projects.

Chemical composition requirements for CSA G40.21 Gr.50W
Chemical Elements	Heat Analysis %
Carbon	0.23
Manganese	0.50-1.50
Phosphorus	0.04 max
Sulfur	0.05
Silicon^(a)(b)	0.40 max
Chromium	***
Nickel	***
Copper^d	***

This table is inspired by CSA G40.21 Table 3.

(a) A silicon content of 0.15 to 0.40% is required for Type W steel over 40 mm (1-1/2 in) in thickness or bar diameter, except as modified by Item (b).
(b) At the purchaser’s request or at the producer’s discretion, the steel may be made with no minimum silicon content, provided that the steel contains a minimum of 0.015% acid soluble aluminum or 0.020% total aluminum content.
(c) Aluminum may be used as a grain refining element without prior approval by the purchaser and, when so used, shall not be included in the summation of grain refining elements included in Table 3. The elements columbium (also known as niobium) and vanadium may be used singly or in combination up to the total percentage indicated, except where columbium is used singly or in combination with vanadium in plates thicker than 14 mm (1/2 in) or in shapes heavier than Group 1, in which case the silicon content shall be 0.15% minimum. This restriction does not apply if the steel fulfills the requirements of Item (b).
(d) A minimum copper content of 0.20% may be specified by the purchaser on all grades.
(e) For thicknesses over 100 mm (4 in), the carbon maximum shall be 0.22%.
(f) For thicknesses over 100 mm (4 in), the carbon maximum shall be 0.23%.
(g) With the prior agreement of the purchaser, the manganese content may be increased, provided that the sum of the carbon content plus 1/6 of the manganese content does not exceed 0.40% for Grade 350WT (50WT) or 0.42% for Grades 400WT (60WT), 450WT (65WT), 480WT (70WT), 550W (80W), 550WT (80WT), 550A (80A), and 550AT (80AT).
(h) See Clauses 5.3 and 5.4.
(i) Types WT, A, AT, Q, and QT steel shall be supplied using a fine grain practice.
(j) The combined contents of chromium, nickel, and copper shall be not less than 1.00%.
(k) The manganese content may be increased to 1.60% maximum, provided that the sum of the carbon content plus 1/6 of the manganese content does not exceed 0.43%.
(l) The combined total of the chromium and nickel contents shall be not less than 0.40%.
Notes:
(1) In order to meet the required mechanical properties, the manufacturer may use additional alloying elements with the prior approval of the purchaser.
(2) The usual deoxidation practice is fully killed.

Mechanical properties of bars & plates

Grade, Imperial Tensile strength, Ksi Yield strength, ksi, minimum Elongation*†, % minimum

Longitudinal Transverse‡

≤ 2 1/2 in > 2 1/2 in ≤ 4 in > 4 in ≤ 6 in > 6 in ≤ 8 in In 8 in In 2 in In 8 in In 2 in

50W 65–95§ 50 46 46 46 19 22 17 20

This table is inspired by CSA G40.21 Table 6

* Per cent elongation is not specified or required for rolled floor plate.
† Where per cent elongation in both 8 in and 2 in is specified, only one gauge length needs to be determined and reported.
‡ Transverse values apply only to plate wider than 24 in.
§ Plates for API applications shall have an upper limit of tensile strength 20 ksi above the specified minimum.
** Available in angles and bars only.
†† The maximum yield strength is 65 ksi and the maximum yield to tensile strength ratio is 0.85. For structural shapes that are required to be tested from the web location, a maximum yield strength of 70 ksi and a maximum yield to tensile strength ratio of 0.87 is permitted.

Notes:
(1) For material having a thickness less than 0.312 in, see Clause 8.3.1.1 of CSA G40.20. For material having a thickness greater than 3.5 in, see Clause 8.3.1.2 of CSA G40.20.
(2) The yield strength may be measured by 0.5% extension-under-load or 0.2% offset method.

Mechanical properties of bars & plates
Grade, Imperial	Tensile strength, Ksi	Yield strength, ksi, minimum	*Elongation†, % minimum**
Longitudinal	Transverse‡
≤ 2 1/2 in	> 2 1/2 in ≤ 4 in	> 4 in ≤ 6 in	> 6 in ≤ 8 in	In 8 in	In 2 in	In 8 in	In 2 in
50W	65–95§	50	46	46	46	19	22	17	20

CSA G40.21 Gr.50W Metal Plates

CSA G40.21 Grade 50W metal plates, notable for a minimum yield strength of 50 ksi, are engineered for weldability, making them perfect for the structural anchoring market. Ideal for fabricating diverse sizes and thicknesses of anchor plates, their high-strength steel composition supports a broad spectrum of anchoring applications. These plates are pivotal in construction, offering essential support for buildings, bridges, and infrastructure, where welding is crucial for assembly and durability. Their mechanical prowess and weldability ensure they are a preferred choice for robust and reliable anchoring solutions.

AVAILABILITY.

Imperial units only

Min. yield strength of 50,000 psi.

Come in many thicknesses and sizes

Plain / HDG F2329.

Custom lengths on demand using our manufacturing plant.

Download Spec Sheet

CSA G40.21 Gr.50W Specifications

Infos
Properties

Dimensionals
Coatings

Available diameters: Many diameters & thickness available
Please check with our account managers for availability and/or feasibility.
The CSA G40.21 Grade 50W standard does not specify particular requirements for coating or finishing, leaving flexibility for different applications and preferences.
At Boulons Plus, we understand the importance of meeting diverse project needs and offer our clients the choice between bare steel and hot-dip galvanized finishes in compliance with ASTM F2329.
This option ensures that our clients can select the most suitable protection against corrosion and environmental wear for their specific application, ensuring longevity and durability in their projects.

Chemical Properties
Mechanical Properties

Chemical composition requirements for CSA G40.21 Gr.50W

Chemical Elements Heat Analysis %

Carbon 0.23

Manganese 0.50-1.50

Phosphorus 0.04 max

Sulfur 0.05

Silicon^(a)(b) 0.40 max

Chromium ***

Nickel ***

Copper^d ***

This table is inspired by CSA G40.21 Table 3.

(a) A silicon content of 0.15 to 0.40% is required for Type W steel over 40 mm (1-1/2 in) in thickness or bar diameter, except as modified by Item (b).
(b) At the purchaser’s request or at the producer’s discretion, the steel may be made with no minimum silicon content, provided that the steel contains a minimum of 0.015% acid soluble aluminum or 0.020% total aluminum content.
(c) Aluminum may be used as a grain refining element without prior approval by the purchaser and, when so used, shall not be included in the summation of grain refining elements included in Table 3. The elements columbium (also known as niobium) and vanadium may be used singly or in combination up to the total percentage indicated, except where columbium is used singly or in combination with vanadium in plates thicker than 14 mm (1/2 in) or in shapes heavier than Group 1, in which case the silicon content shall be 0.15% minimum. This restriction does not apply if the steel fulfills the requirements of Item (b).
(d) A minimum copper content of 0.20% may be specified by the purchaser on all grades.
(e) For thicknesses over 100 mm (4 in), the carbon maximum shall be 0.22%.
(f) For thicknesses over 100 mm (4 in), the carbon maximum shall be 0.23%.
(g) With the prior agreement of the purchaser, the manganese content may be increased, provided that the sum of the carbon content plus 1/6 of the manganese content does not exceed 0.40% for Grade 350WT (50WT) or 0.42% for Grades 400WT (60WT), 450WT (65WT), 480WT (70WT), 550W (80W), 550WT (80WT), 550A (80A), and 550AT (80AT).
(h) See Clauses 5.3 and 5.4.
(i) Types WT, A, AT, Q, and QT steel shall be supplied using a fine grain practice.
(j) The combined contents of chromium, nickel, and copper shall be not less than 1.00%.
(k) The manganese content may be increased to 1.60% maximum, provided that the sum of the carbon content plus 1/6 of the manganese content does not exceed 0.43%.
(l) The combined total of the chromium and nickel contents shall be not less than 0.40%.
Notes:
(1) In order to meet the required mechanical properties, the manufacturer may use additional alloying elements with the prior approval of the purchaser.
(2) The usual deoxidation practice is fully killed.

Mechanical properties of bars & plates

Grade, Imperial Tensile strength, Ksi Yield strength, ksi, minimum Elongation*†, % minimum

Longitudinal Transverse‡

≤ 2 1/2 in > 2 1/2 in ≤ 4 in > 4 in ≤ 6 in > 6 in ≤ 8 in In 8 in In 2 in In 8 in In 2 in

50W 65–95§ 50 46 46 46 19 22 17 20

This table is inspired by CSA G40.21 Table 6

* Per cent elongation is not specified or required for rolled floor plate.
† Where per cent elongation in both 8 in and 2 in is specified, only one gauge length needs to be determined and reported.
‡ Transverse values apply only to plate wider than 24 in.
§ Plates for API applications shall have an upper limit of tensile strength 20 ksi above the specified minimum.
** Available in angles and bars only.
†† The maximum yield strength is 65 ksi and the maximum yield to tensile strength ratio is 0.85. For structural shapes that are required to be tested from the web location, a maximum yield strength of 70 ksi and a maximum yield to tensile strength ratio of 0.87 is permitted.

Notes:
(1) For material having a thickness less than 0.312 in, see Clause 8.3.1.1 of CSA G40.20. For material having a thickness greater than 3.5 in, see Clause 8.3.1.2 of CSA G40.20.
(2) The yield strength may be measured by 0.5% extension-under-load or 0.2% offset method.

CSA G40.21 Gr.44W Metal Plates

CSA G40.21 Grade 44W metal plates are designed for structural anchoring applications, offering a versatile solution with a minimum yield strength of 44 ksi. These plates are ideally suited for manufacturing anchor plates, leveraging plasma cutting technology for precision shaping. Their weldability ensures they can be seamlessly integrated into various construction projects, providing reliable support for buildings, bridges, and infrastructure. Grade 44W’s combination of strength, ductility, and adaptability to welding makes it a preferred material for creating durable, custom anchoring solutions.

Our supplier only supply us with lots that are over 50 ksi in the test results.

AVAILABILITY.

Imperial units only

Min. yield strength of 44,000 psi.

Come in many thicknesses and sizes

Plain / HDG F2329.

Custom lengths on demand using our manufacturing plant.

Download Spec Sheet

CSA G40.21 Gr.44W Specifications

Infos
Properties

Dimensionals
Coatings

Available diameters: Many diameters & thickness available
Please check with our account managers for availability and/or feasibility.
The CSA G40.21 Grade 44W standard does not specify particular requirements for coating or finishing, leaving flexibility for different applications and preferences.
At Boulons Plus, we understand the importance of meeting diverse project needs and offer our clients the choice between bare steel and hot-dip galvanized finishes in compliance with ASTM F2329.
This option ensures that our clients can select the most suitable protection against corrosion and environmental wear for their specific application, ensuring longevity and durability in their projects.

Chemical Properties
Mechanical Properties

Chemical composition requirements for CSA G40.21 Gr.44W

Chemical Elements Heat Analysis %

Carbon 0.22^f

Manganese 0.50-1.50

Phosphorus 0.04 max

Sulfur 0.05

Silicon^(a)(b) 0.40 max

Chromium ***

Nickel ***

Copper^d ***

This table is inspired by CSA G40.21 Table 3.

(a) A silicon content of 0.15 to 0.40% is required for Type W steel over 40 mm (1-1/2 in) in thickness or bar diameter, except as modified by Item (b).
(b) At the purchaser’s request or at the producer’s discretion, the steel may be made with no minimum silicon content, provided that the steel contains a minimum of 0.015% acid soluble aluminum or 0.020% total aluminum content.
(c) Aluminum may be used as a grain refining element without prior approval by the purchaser and, when so used, shall not be included in the summation of grain refining elements included in Table 3. The elements columbium (also known as niobium) and vanadium may be used singly or in combination up to the total percentage indicated, except where columbium is used singly or in combination with vanadium in plates thicker than 14 mm (1/2 in) or in shapes heavier than Group 1, in which case the silicon content shall be 0.15% minimum. This restriction does not apply if the steel fulfills the requirements of Item (b).
(d) A minimum copper content of 0.20% may be specified by the purchaser on all grades.
(e) For thicknesses over 100 mm (4 in), the carbon maximum shall be 0.22%.
(f) For thicknesses over 100 mm (4 in), the carbon maximum shall be 0.23%.
(g) With the prior agreement of the purchaser, the manganese content may be increased, provided that the sum of the carbon content plus 1/6 of the manganese content does not exceed 0.40% for Grade 350WT (50WT) or 0.42% for Grades 400WT (60WT), 450WT (65WT), 480WT (70WT), 550W (80W), 550WT (80WT), 550A (80A), and 550AT (80AT).
(h) See Clauses 5.3 and 5.4.
(i) Types WT, A, AT, Q, and QT steel shall be supplied using a fine grain practice.
(j) The combined contents of chromium, nickel, and copper shall be not less than 1.00%.
(k) The manganese content may be increased to 1.60% maximum, provided that the sum of the carbon content plus 1/6 of the manganese content does not exceed 0.43%.
(l) The combined total of the chromium and nickel contents shall be not less than 0.40%.
Notes:
(1) In order to meet the required mechanical properties, the manufacturer may use additional alloying elements with the prior approval of the purchaser.
(2) The usual deoxidation practice is fully killed.

Mechanical properties of plates

Grade, Imperial Tensile strength, Ksi Yield strength, ksi, minimum Elongation*†, % minimum

Longitudinal Transverse‡

≤ 2 1/2 in > 2 1/2 in ≤ 4 in > 4 in ≤ 6 in > 6 in ≤ 8 in In 8 in In 2 in In 8 in In 2 in

44W 64-90 44 40 40 40 20 23 18 21

This table is inspired by CSA G40.21 Table 6

* Per cent elongation is not specified or required for rolled floor plate.
† Where per cent elongation in both 8 in and 2 in is specified, only one gauge length needs to be determined and reported.
‡ Transverse values apply only to plate wider than 24 in.
§ Plates for API applications shall have an upper limit of tensile strength 20 ksi above the specified minimum.
** Available in angles and bars only.
†† The maximum yield strength is 65 ksi and the maximum yield to tensile strength ratio is 0.85. For structural shapes that are required to be tested from the web location, a maximum yield strength of 70 ksi and a maximum yield to tensile strength ratio of 0.87 is permitted.

Notes:
(1) For material having a thickness less than 0.312 in, see Clause 8.3.1.1 of CSA G40.20. For material having a thickness greater than 3.5 in, see Clause 8.3.1.2 of CSA G40.20.
(2) The yield strength may be measured by 0.5% extension-under-load or 0.2% offset method.