HSLA Steel | McMaster-Carr

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106 Products

About Steel

Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.

Ultra-Strength Carbon Steel (AHSS) Round Tubes

Yield Strength: 100,000 psi
Hardness: Rockwell C26 (Hard)
Heat Treatable: No

The same steel used in automobile bodies, this AHSS (advanced high-strength steel) allows you to fabricate high-strength parts using thinner material than you could with other types of steel. It is formable, weldable, and more economical than alloy steel. It's sometimes called HSLA (high-strength low-alloy) steel.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

0.095" Wall Thick. (-0.005" to 0.005" Tolerance)
OD	OD Tolerance	ID	Heat Treatment		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1 3/4"	-0.01" to 0.01"	1.56"	Annealed (Softened)	3391N128	000000	000000	0000000

Ultra-Strength Carbon Steel (UHSS) Sheets

Yield Strength: 100,000 psi
Hardness: Rockwell B90 (Medium)
Heat Treatable: No

This UHSS (ultra high-strength steel) allows you to fabricate high-strength parts using thinner material than you could with other types of steel. It is formable, weldable, and more economical than alloy steel. It's sometimes called HSLA (high-strength low-alloy) steel.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

6" × 6"
Thick.	Thick. Tolerance		Each
0.098"	0" to 0.02"	2953N116	000000
0.157"	0" to 0.02"	2953N122	00000
1/4"	0" to 0.02"	2953N127	00000
12" × 12"
0.098"	0" to 0.02"	2953N117	00000
0.157"	0" to 0.02"	2953N123	00000
1/4"	0" to 0.02"	2953N128	00000
12" × 24"
0.098"	0" to 0.02"	2953N118	00000
0.157"	0" to 0.02"	2953N124	000000
1/4"	0" to 0.02"	2953N129	000000
24" × 24"
0.098"	0" to 0.02"	2953N119	000000
0.157"	0" to 0.02"	2953N126	000000
1/4"	0" to 0.02"	2953N131	000000
24" × 48"
0.098"	0" to 0.02"	2953N121	000000
0.157"	0" to 0.02"	2953N125	000000
1/4"	0" to 0.02"	2953N132	000000

Easy-to-Weld A572 Alloy Steel Sheets and Bars

Yield Strength: 50,000 psi
Hardness: Rockwell B75 (Medium)
Maximum Hardness After Heat Treatment: Not Rated
Specifications Met: ASTM A572

Combining strength with weldability and formability, A572 alloy steel is an economical choice for structural components, such as channels, beams, and framing. It has a low carbon content, making it easy to weld with a variety of welding methods. Stronger than other low-carbon steels, such as A36 steel, it handles heavy loads without fracturing. Tested using ASTM A572, these sheets and bars are safe for jobs that require a yield strength of 50,000 psi or less.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Sheets

6" × 6"
Thickness	Thickness Tolerance		Each
3/16"	-0.003" to 0.008"	3706N101	000000
1/4"	-0.009" to 0.009"	3706N106	00000
5/16"	-0.007" to 0.007"	3706N111	00000
1/2"	-0.015" to 0.015"	3706N121	00000
3/4"	-0.01" to 0.04"	3706N131	00000
6" × 12"
3/16"	-0.003" to 0.008"	3706N102	00000
5/16"	-0.007" to 0.007"	3706N112	00000
3/8"	-0.012" to 0.012"	3706N117	00000
1/2"	-0.015" to 0.015"	3706N122	000000
5/8"	-0.016" to 0.016"	3706N127	000000
3/4"	-0.01" to 0.04"	3706N132	000000
1"	-0.01" to 0.07"	3706N137	000000
12" × 12"
3/16"	-0.003" to 0.008"	3706N103	000000
1/4"	-0.009" to 0.009"	3706N108	000000
5/16"	-0.007" to 0.007"	3706N113	000000
3/8"	-0.012" to 0.012"	3706N118	000000
1/2"	-0.015" to 0.015"	3706N123	000000
5/8"	-0.016" to 0.016"	3706N128	000000
3/4"	-0.01" to 0.04"	3706N133	000000
1"	-0.01" to 0.07"	3706N138	000000
12" × 24"
3/16"	-0.003" to 0.008"	3706N104	000000
1/4"	-0.009" to 0.009"	3706N109	000000
5/16"	-0.007" to 0.007"	3706N114	000000
3/8"	-0.012" to 0.012"	3706N119	000000
1/2"	-0.015" to 0.015"	3706N124	000000
5/8"	-0.016" to 0.016"	3706N129	000000
1"	-0.01" to 0.07"	3706N139	000000
24" × 24"
3/16"	-0.003" to 0.008"	3706N105	000000
1/4"	-0.009" to 0.009"	3706N11	000000
5/16"	-0.007" to 0.007"	3706N115	000000
3/8"	-0.012" to 0.012"	3706N12	000000
5/8"	-0.016" to 0.016"	3706N13	000000
3/4"	-0.01" to 0.04"	3706N135	000000
1"	-0.01" to 0.07"	3706N14	000000

Bars

1/4" Thickness (-0.009" to 0.009" Tolerance)
Width		12" Length	36" Length	72" Length
1"	3706N31	000000	000000	000000
1 1/2"	3706N32	00000	00000	00000
2"	3706N33	00000	00000	00000
2 1/2"	3706N151	00	00000	00
3"	3706N35	00000	00000	000000
3 1/2"	3706N36	00	00000	000000
4"	3706N37	00	00000	000000
5"	3706N38	00	00000	000000
3/8" Thickness (-0.012" to 0.012" Tolerance)
1"	3706N41	00000	00000	00000
1 1/2"	3706N42	00000	00000	00000
2"	3706N43	00000	00000	00000
3"	3706N45	00000	00000	000000
3 1/2"	3706N46	00000	00000	000000
4"	3706N47	00000	000000	000000
6"	3706N191	00	000000	00
1/2" Thickness (-0.015" to 0.015" Tolerance)
1"	3706N51	00000	00000	00000
1 1/2"	3706N52	00000	00000	00000
2"	3706N53	00000	00000	00000
2 1/2"	3706N203	00	00000	00
3"	3706N55	00000	00000	000000
4"	3706N57	00000	00000	000000
5"	3706N58	00	000000	000000
6"	3706N59	00	000000	000000

Hardened High-Strength Easy-to-Weld A514 Alloy Steel

Yield Strength: 100,000 psi
Hardness: Rockwell C20 (Hard)
Fabrication: Hot Rolled
Specifications Met: ASTM A514

Heat treated to increase hardness and strength, A514 alloy steel is ideal for use in structures and supporting heavy loads, such as frames and machine bases. Also known as high-strength low-alloy (HSLA) steel, its low carbon content makes it easy to weld. All steel meets ASTM A514 standards for manufacturing processes and performance properties.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

6" × 6"
Thick.	Thick. Tolerance		Each
1/4"	-0.01" to 0.03"	3845T211	000000
3/8"	-0.01" to 0.03"	3845T311	00000
1/2"	-0.01" to 0.03"	3845T411	00000
3/4"	-0.01" to 0.03"	3845T511	00000
1"	-0.01" to 0.03"	3845T611	00000
6" × 12"
1/4"	-0.01" to 0.03"	3845T212	00000
3/8"	-0.01" to 0.03"	3845T312	00000
1/2"	-0.01" to 0.03"	3845T412	00000
3/4"	-0.01" to 0.03"	3845T512	000000
1"	-0.01" to 0.03"	3845T612	000000
12" × 12"
1/4"	-0.01" to 0.03"	3845T213	00000
3/8"	-0.01" to 0.03"	3845T313	000000
1/2"	-0.01" to 0.03"	3845T413	000000
3/4"	-0.01" to 0.03"	3845T513	000000
1"	-0.01" to 0.03"	3845T613	000000
12" × 24"
1/4"	-0.01" to 0.03"	3845T214	000000
3/8"	-0.01" to 0.03"	3845T314	000000
1/2"	-0.01" to 0.03"	3845T414	000000
3/4"	-0.01" to 0.03"	3845T514	000000
1"	-0.01" to 0.03"	3845T614	000000
24" × 24"
1/4"	-0.01" to 0.03"	3845T215	000000
3/8"	-0.01" to 0.03"	3845T315	000000
1/2"	-0.01" to 0.03"	3845T415	000000
3/4"	-0.01" to 0.03"	3845T515	000000
1"	-0.01" to 0.03"	3845T615	000000

Weather-Resistant Easy-to-Weld A588 Alloy Steel

Yield Strength: 50,000 psi
Hardness: Not Rated
Heat Treatable: Yes
Fabrication: Hot Rolled
Specifications Met: See table

When it’s exposed to the elements, this steel forms a thin shell of rust that shields the interior from corrosion. It’s also known as weathering steel. Low carbon content makes it very weldable. Since you don’t need to paint this steel to prevent corrosion, it requires less maintenance than other types of steel—it’s commonly used in bridges, buildings, and fencing. It’s comparable to Corten steel. With a yield strength of 50,000 psi, this steel is stronger than A36 and other low-carbon steels. It can also be surface hardened with heat treating for added wear resistance. This steel meets ASTM standards for corrosion resistance and strength.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

			24" × 24"
Thickness	Thickness Tolerance	Specifications Met		Each
3/16"	-0.01" to 0.008"	ASTM A242, ASTM A588	9055N112	0000000
1/4"	-0.01" to 0.008"	ASTM A242, ASTM A588	9055N111	000000
5/16"	-0.01" to 0.008"	ASTM A242, ASTM A588	9055N113	000000
3/8"	-0.01" to 0.008"	ASTM A242, ASTM A588	9055N114	000000
1/2"	-0.01" to 0.008"	ASTM A242, ASTM A588	9055N115	000000
5/8"	-0.01" to 0.008"	ASTM A588	9055N116	000000
3/4"	-0.01" to 0.008"	ASTM A588	9055N117	000000
1"	-0.01" to 0.008"	ASTM A588	9055N118	000000