Stainless Steel 304LN Square Bars, UNS S30453 Square Bars Supplier & Exporter

INTRODUCTION:-

Stainless steel grade 304 is the most commonly used stainless steel. Stainless steel grade 304LN is a nitrogen-strengthened version of stainless steel grade 304.

The following datasheet provides an overview of grade 304LN stainless steel.

APPLICATION:-

• Heat exchangers
• Chemical industry
• Food industry
• Petroleum industry
• Fabrication industry
• Nuclear industry

CHEMICAL COMPOSITION:-

The chemical composition of grade 304LN stainless steel is outlined in the following table.

Element	Content (%)
Chromium, Cr	18-20
Nickel, Ni	8-12
Manganese, Mn	2 max
Silicon, Si	1 max
Nitrogen, N	0.1-0.16
Phosphorous, P	0.045 max
Carbon, C	0.03 max
Sulfur, S	0.03 max
Iron, Fe	Remainder

MECHANICAL PROPERTIES:-

The mechanical properties of grade 304LN stainless steel are displayed in the following table.

Properties	Metric	Imperial
Tensile strength	515 MPa	74694 psi
Yield strength	205 MPa	29732 psi
Elongation at break (in 50 mm)	40%	40%
Hardness, Brinell	217	217
Hardness, Rockwell B	95	95

OTHER DESIGNATION:-

Equivalent materials to grade 304LN stainless steel are given below.

ASTM A182	ASTM A213	ASTM A269	ASTM A312	ASTM A376
ASTM A240	ASTM A249	ASTM A276	ASTM A336	ASTM A403
ASTM A193 (B8LN, B8LNA)	ASTM A194 (8LN, 8LNA)	ASTM A320 (B8LN, B8LNA)	ASTM A479	ASTM A666
ASTM A688	ASTM A813	ASTM A814	DIN 1.4311

APPLICATION:-

Grade 304LN stainless steel is widely used in the following applications:

• Heat exchangers
• Chemical industry
• Food industry
• Petroleum industry
• Fabrication industry
• Nuclear industry

SQUARE BAR PRODUCT OVERVIEW:-

Stainless Steel Square Bar
Thickness Range of Stainless Plate	3/16″ THRU 4″ (LARGER SIZES AVAILABLE UPON REQUEST)
Grades	202, 304/304L, 316/316L,304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410. In duplex grades, we can supply 2205 and 2507. Some nickel Alloy such as alloy 200/201, C276, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and others Titanium alloys and copper alloys are also available

INVENTORY:-

• X = Stocked Item
• P = Call For availability square bar can be cut to size.
• Square bar can be polished per customer specifications.
• Square bar is stocked in Penn met 2000 for improved machinability.

Size in Inches	Wt per Ft	Wt per 12′	303	304/L	316/L	416
3/16″	0.120	1.440	X	X	X	P
1/4″	0.210	2.52	X	X	X	P
5/16″	0.330	3.96	X	X	X	X
3/8″	0.480	5.76	X	X	X	X
7/16″	0.650	7.80	X	X	X	X
1/2″	0.850	10.20	X	X	X	X
9/16″	1.080	12.96	X	X	X	X
5/8″	1.330	15.96	X	X	X	X
3/4″	1.910	22.92	X	X	X	X
7/8″	2.610	31.32	X	X	X	X
1″	3.400	40.80	X	X	X	X
1-1/8″	4.310	51.72	X	X	X	X
1-1/4″	5.320	63.84	X	X	X	X
1-3/8″	6.400	76.80	X	X	X	X
1-1/2″	7.600	91.20	X	X	X	X
1-3/4″	10.400	124.80	X	X	X	X
2″	13.600	163.20	X	X	X	X
2-1/4″	17.200	206.40	X	X	X	X
2-1/2″	21.300	255.60	X	X	X	X
3″	30.63	367.56	X	X	X	P
4″	54.40	652.80	X	X	X	P

PROCESSING:-

Customers can select a number of processing options to produce stainless steel bars to their exact specifications, reducing materiel costs, production time, scrap and internal handling.

Long Product Processing Services Overview
Square Bar Cutting	Products cut include Round Bar, Flat bar, Hex bar, Square bar, Tubing and Hollow Bar, Pipe, Angles, channels, Beams and Tees.  Thickness range is 1/16″ to 28″ diameter
Square Bar Production Cutting	Penn Stainless can provide production cutting for product diameters up to 4″.  We utilize Amanda Production Equipment to achieve these precision cuts with tight tolerances.
Square Bar Polishing	Products polished included all tubular products, with OD & ID polishing available, Round Bar, Square Bar, Hex & Flat bar, Angles, Uneven Leg Angles, beams, and other shapes.

TOLERANCES FOR COLD AND HOT SQUARE BARS

COLD FINISHED SQUARE BAR TOLERANCES:

CF Tolerances	Plus	Minus
1/8″ to 5/16″ (exclusive)	0.000	0.002
5/16″ to 1/2″ (exclusive)	0.000	0.003
1/2″ to 1″ (inclusive)	0.000	0.004
over 1″ to 2″ (inclusive)	0.000	0.006
over 2″ to 3″ (inclusive)	0.000	0.008

COLD FINISHED SQUARE BAR STRAIGHTNESS TOLERANCES:

CF: 1/16 inch in any 5 foot; but may not exceed 1/16 X (length in ft/5)

HOT FINISHED SQUARE BAR TOLERANCES:

HF Tolerances	Plus	Minus	Out of Sq
Over 7/8″ to 1″ (inclusive)	0.009	0.009	0.013
Over 1″ to 1-1/8″ (inclusive)	0.010	0.010	0.015
Over 1-1/8″ to 1-1/4″ (inclusive)	0.011	0.011	0.016
Over 1-1/4″ to 1-3/8″ (inclusive)	0.012	0.012	0.018
Over 1-3/8″ to 1-1/2″ (inclusive)	0.014	0.014	0.021
Over 1-1/2″ to 2″ (inclusive)	1/64	1/64	0.023

HOT FINISHED SQUARE BAR STRAIGHTNESS TOLERANCES:

HF: 1/8 inch in any 5 foot; but may not exceed 1/8 X (length in ft/5)

STAINLESS STEEL SQUARE BAR SPECIFICATIONS:

Stainless Steel Square Bar Specifications
ASTM A276	This specification encompasses cold-finished or hot-finished bars, including rounds, squares, and hexagons, and hot-rolled or extruded shapes, such as angles, tees, and channels in the more commonly used types of stainless steels.
ASTM A479	This specification includes cold and hot finished stainless steel bars, including rounds, squares, and hexagons, and hot-rolled or extruded shapes such as angles, tees, and channels.
ASTM A484	This specification includes wrought stainless steel bars, shapes, forgings, and billets or other semi-finished materials, except wire, for forging. The materials are available in four types of conditions.
ASTM A582	This specification includes cold or hot finished bars, which are suitable for machining processes. This specification includes rounds, squares, and hexagons, from common types of stainless free-machining steels.
ASTM B473	This specification includes nickel alloy bar & wire, which can be produced in a solution-annealed condition, stabilized-annealed condition, or annealed condition.

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