CSA G40.21 STEEL PLATES – Stockist, Suppliers & Exporters

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CSA G40.21 44W Structural, Carbon & HSLA Steel Plate | CSA G40.21 50W / 50A | HIGH STRENGTH – High Strength and Abrasion Resistant Steel Plates stockist, suppliers and exporters, ASTM A36 Steel Plates – Stockist and suppliers, A572 STEEL PLATE – Stockist and Suppliers, CSA G40.21 STEEL PLATE -Stockist & Suppliers, A709 GRADE HPS 50W & 70W PLATES – Stockist and Suppliers, A588 & A606 STEEL PLATE – Stockist and Suppliers, A656 STEEL PLATE – Stockist and Suppliers, A573 STEEL PLATE – Stockist and Suppliers, A283 STEEL PLATE – Stockist and Suppliers, API 2H Grade 50 Steel Plates

Chemtech has a distribution center in Hamilton, Ontario, and is proud to provide an exceptional quality of steel that meets the CSA, Canadian Standards Association, and offers certifications for structural steel such as products like CSA G40.21 steel plates in different grades such as: 44W, 50W and 50A.

Mechanical Properties 44W/300W:
Tensile: 65 to 85 ksi
Yield: 44 ksi min
Elongation: 20% min in 8” 23% min in 2”

CAT 1 (32°F): 15 ft/lbs
CAT 2 (0°F): 15 ft/lbs
CAT 3 (-20°F): 15 ft/lbs
CAT 4 (-50°F): 15 ft/lbs

 

CSA G40.21 covers the chemical and mechanical requirements for structural quality steel shapes, plates, and bars for use in general construction and engineering purposes.

G40.21 Types

Type W Weldable Steel
Type WT Weldable Notch Tough Steel (low temperature)
Type R Atmospheric Corrosion Resistant Steel
Type A Atmospheric Corrosion Resistant Weldable Steel
Type AT Atmospheric Corrosion Resistant Weldable Notch Tough Steel
Type Q Quenched and Tempered Low Alloy Steel Plate Steel
Type QT Quenched and Tempered Low Alloy Notch Tough Steel Plate

G40.21 Grades, Types and Strength Levels

Type 38 44 50 55* 60 70 80 100
W 38W 44W 50W 55W 60W 70W 80W –
WT 38WT 44WT 50WT 55WT 60WT 70WT 80WT –
R 50R
A 50A 60A 70A 80A
AT 50AT 60AT 70AT 80AT
Q 100Q
QT 100QT
*Grade 55W is available only as hollow sections, angles and bars. 55WT as hollow sections only

G40.21 Imperial / Metric Conversion

Imperial, ksi Metric, MPa
38 260
44 300
50 350
55 380
60 400
70 480
80 550
100 700

G40.21 Mechanical Requirements for Plates, Bars, and Shapes

Grade Tensile, ksi Yield, ksi min, up to 2-1/2” Yield, ksi min, above 2-1/2” to 4” Elongation, % min, Longitudinal in 8”
38W 60-85 38 36 20
44W 65-90 44 40 20
50W 65-95 50 46 19
55W 70-95 55 – 18
60W 75-100 60 – 16
70W 85-115 70 – 15
80W 90-125 80 – 13
38WT 60-85 38 36 20
44WT 65-90 44 40 20
50WT 70-95 50 46 19
60WT 75-100 60 – 18
70WT 85-115 70 – 15
80WT 90-125 80 – 13
50R 70-95 50 – 19
50A 70-95 50 50 19
60A 75-100 60 – 18
70A 85-115 70 – 15
80A 90-125 80 – 13
50AT 70-95 50 50 19
60AT 75-100 60 – 18
70AT 85-115 70 – 15
80AT 90-125 80 – 13
100Q 110-130 100 90 18 in 2”
100QT 110-130 100 90 18 in 2”
The above table has been abridged for clarity and relevance. The complete table can be found in the CSA standard

G40.21 Chemical Requirements

Grade Carbonmax Manganese Phosphorous Sulfur max Silicon Chromium Nickel Copper
38W 0.20 0.50-1.50 0.04 max 0.05 0.40 max – – –
44W 0.22 0.50-1.50 0.04 max 0.05 0.40 max – – –
50W 0.23 0.50-1.50 0.04 max 0.05 0.40 max – – –
55W 0.23 0.50-1.50 0.04 max 0.05 0.40 max – – –
60W 0.23 0.50-1.50 0.04 max 0.05 0.40 max – – –
70W 0.26 0.50-1.50 0.04 max 0.05 0.40 max – – –
80W 0.15 1.75 max 0.04 max 0.05 0.40 max – – –
38WT 0.20 0.80-1.50 0.03 max 0.04 0.15-0.40 – – –
44WT 0.22 0.80-1.50 0.03 max 0.04 0.15-0.40 – – –
50WT 0.22 0.80-1.50 0.03 max 0.04 0.15-0.40 – – –
60WT 0.22 0.80-1.50 0.03 max 0.04 0.15-0.40 – – –
70WT 0.26 0.80-1.50 0.03 max 0.04 0.15-0.40 – – –
80WT 0.15 1.75 max 0.03 max 0.04 0.15-0.40 – – –
50R 0.16 0.75 max 0.05-0.15 0.04 0.75 max 0.30-1.25 0.90 max 0.20-0.60
50A 0.20 0.75-1.35 0.03 max 0.04 0.15-0.50 0.70 max 0.90 max 0.20-0.60
60A 0.20 0.75-1.35 0.03 max 0.04 0.15-0.50 0.70 max 0.90 max 0.20-0.60
70A 0.20 1.00-1.60 0.025 max 0.035 0.15-0.50 0.70 max 0.25-0.50 0.20-0.60
80A 0.15 1.75 max 0.025 max 0.035 0.15-0.50 0.70 max 0.25-0.50 0.20-0.60
50AT 0.20 0.75-1.35 0.03 max 0.04 0.15-0.50 0.70 max 0.90 max 0.20-0.60
60AT 0.20 0.75-1.35 0.03 max 0.04 0.15-0.50 0.70 max 0.90 max 0.20-0.60
70AT 0.20 1.00-1.60 0.025 max 0.035 0.15-0.50 0.70 max 0.25-0.50 0.20-0.60
80AT 0.15 1.75 max 0.025 max 0.035 0.15-0.40 0.70 max 0.25-0.50 0.20-0.60
100Q 0.20 1.50 max 0.03 max 0.04 0.15-0.40 – – –
100QT 0.20 1.50 max 0.03 max 0.04 0.15-0.40 – – –
In addition, grades 100Q and 100QT shall have a Boron composition of 0.0005-0.005% The above table has been abridged for clarity and relevance. The complete table can be found in the CSA standard

G40.21 Charpy Impact Testing

Grade Minimum Absorbed Energy, Categories 1-4, in ft-lb
38WT 15
44WT 15
50WT 20
55WT 20
60WT 20
70WT 20
80WT 20
50AT 20
60AT 20
70AT 20
80AT 20
100QT 25
Absorbed energy for Category 5 shall be specified by the purchaser
Category Test Temperature, °F
1 32
2 0
3 -20
4 -50
5 To be specified by purchaser

Commentary on ASTM Equivalents

The most common merchant structural grade of CSA G40.21 is 44W(300W). Most steel mills in the US manufacture their merchant bars (rounds, flats) to meet both this grade and ASTM A36 in order to satisfy users on both sides of the border. Becoming more common in recent years is structural steel per 50W. ASTM A572/A529 grade 50 will typically satisfy these requirements. All of Chemtech A36 rounds bar will cross-certify to 44W and our F1554G55 round bar will meet the requirements of grade 50W. There may be some other cross certification available on a case by case basis. Ask your Chemtech salesperson for more information.

 

We are Stocking  Following  Origin (Make)  Plates
Voestalpine (Austria) JFE Steel Corporation (Japan)
POSCO (South Korea) SSAB Alabama Inc. (USA)
JINDAL STEEL AND POWER LTD (USA) Azovstal Iron & Steel Works (Ukraine)
Nippon Steel & Sumitomo Metal Corporation (Japan)  Arcelor Mittal (USA)
Kobe Steel, Ltd. (Japan) Nucor Steel (USA)
ESSAR STEEL INDIA LIMITED (India)  JINDAL STEEL AND POWER LTD (India)
TATA Steel (UK) SAIL (INDIA)
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