Alloy Steel F21 Bars

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Dang Steel, a well-respected manufacturer and supplier based in Da Nang, Vietnam, offers top-notch Alloy Steel F1 Bars that are built for performance and reliability in demanding industries. Crafted with meticulous attention to quality and adhering to international standards, these bars boast impressive strength, toughness, and heat resistance. Dang Steel provides Alloy Steel F1 Bars in a variety of dimensions and finishes, making them perfect for a wide range of industrial applications. Their ability to endure high pressure and elevated temperatures makes them highly sought after in sectors like petrochemical, chemical processing, power generation, and engineering around the globe.

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Alloy Steel F21 Round Bars

Alloy Steel F21 Bright Bars

Alloy Steel F21 Hex Bars

Table of Contents

What is Alloy Steel F21 Bars?

These Alloy Steel F1 Bars are primarily made up of carbon, chromium, and molybdenum, with carefully controlled amounts of manganese, silicon, phosphorus, and sulfur. This well-balanced composition enhances their creep resistance, corrosion resistance, and strength at high temperatures. Typically, they offer tensile strength between 380–550 MPa, yield strength of about 205 MPa, and an elongation of 20% or more. Heat treatment processes like annealing and tempering further boost their machinability, durability, and overall performance in critical applications.

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Alloy Steel F21 Bars Specification

type
Alloy Steel ASTM A182 F21 Round Bars
Type
rod, square bar, Round bar, hexagon bar, flat bar, channel bar, angle bar, threaded bar
Standards

Alloy Steel ASTM A182 F22 , A479, A314, GB4226-84, GB/T1220-2007, JISG4311-91, JIS G4318-98, EN 10095-99, GB4226-84, EN10088-3-2005, JIS G3033-2005, etc

Surface
bright round bar, pickled round bar, black round bar
Package Details
Standard seaworthy package(wooden boxes package,pvc package, or other package)
Technique
Forged/Hot Rolled/Cold Drawn/Peeled
Range

Range – 3.17mm to 350mm dia

Diameter
5mm-500mm (Customized size is acceptable)
Length
1m-9m or according to the customer’s requirement

Alloy Steel F21 Bars Chemical Composition

Grade C Mn Si Mo P Cr
ASTM A182 F21 0.05 – 0.15 0.30 – 0.60 0.50 max 0.87 – 1.13 0.040 2.00 – 2.50

Alloy Steel F21 Bars Mechanical Properties

Tensile Strength (ksi) min Elongation (% in 50mm) min Yield Strength 0.2% Proof (ksi) min
570 23 295

Alloy Steel F21 Bars Equivalent Grades

STANDARD WERKSTOFF NR. UNS
ASTM A182 F21 1.7380 K21590

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weight chart of Alloy Steel F21 Bars

SIZE IN INCHES
ROUND
SQUARE
OCTAGON
HEXAGON
SIZE IN INCHES
ROUND
SQUARE
OCTAGON
HEXAGON
1/16
.010
.013
.011
.012
11/16
1.262
1.607
1.333
1.392
5/64
.017
.022
.018
.019
45/64
1.320
1.681
1.394
1.456
3/32
.023
.029
.024
.025
23/32
1.380
1.756
1.487
1.521
7/64
.031
.039
.033
.034
47/64
1.440
1.834
1.521
1.588
1/8
.042
.053
.044
.046
3/4
1.502
1.913
1.586
1.656
9/64
.053
.067
.056
.058
25/32
1.630
2.075
1.721
1.797
5/32
.065
.083
.069
.072
13/16
1.763
2.245
1.862
1.944
11/64
.079
.100
.083
.087
27/32
1.901
2.421
2.008
2.096
3/16
.094
.120
.099
.104
7/8
2.045
2.603
2.159
2.254
13/64
.110
.140
.116
.121
29/32
2.193
2.792
2.316
2.418
7/32
.128
.163
.135
.141
15/16
2.347
2.988
2.479
2.588
15/64
.147
.187
.155
.162
31/32
2.506
3.191
2.646
2.763
1/4
.167
.213
.176
.184
1
2.670
3.400
2.820
2.945
17/64
.188
.240
.199
.207
1-1/16
3.015
3.838
3.183
3.324
9/32
.211
.269
.223
.233
1-1/8
3.380
4.303
3.569
3.727
19/64
.235
.300
.248
.259
1-3/16
3.766
4.795
3.977
4.152
5/16
.261
.332
.275
.288
1-1/4
4.172
5.313
4.407
4.601
21/64
.288
.360
.304
.318
1-5/16
4.600
5.857
4.858
5.072
11/32
.316
.402
.334
.348
1-3/8
5.049
6.428
5.332
5.567
23/64
.345
.439
.364
.381
1-7/16
5.518
7.026
5.827
6.085
3/8
.376
.478
.397
.414
1-1/2
6.008
7.650
6.345
6.625
25/64
.408
.519
.431
.450
1-9/16
6.519
8.301
6.885
7.189
13/32
.441
.561
.466
.486
1-5/8
7.051
8.978
7.446
7.775
27/64
.475
.605
.502
.524
1-11/16
7.604
9.682
8.030
8.385
7/16
.511
.651
.540
.564
1-3/4
8.178
10.41
8.634
9.018
29/64
.548
.698
.579
.604
1-13/16
8.773
11.17
9.265
9.673
15/32
.587
.747
.620
.647
1-7/8
9.388
11.95
9.911
10.35
31/64
.627
.798
.662
.692
1-15/16
10.02
12.76
10.58
11.05
1/2
.668
.850
.705
.736
2
10.68
13.60
11.28
11.78
33/64
.710
.904
.750
.783
2-1/16
11.36
14.46
11.99
12.53
17/32
.754
.960
.796
.831
2-1/8
12.06
15.35
12.73
13.30
35/64
.799
1.017
.844
.881
2-3/16
12.78
16.27
13.49
14.09
9/16
.845
1.076
.892
.932
2-1/4
13.52
17.21
14.27
14.91
37/64
.893
1.136
.943
.985
2-5/16
14.28
18.18
15.08
15.75
19/32
.941
1.199
.994
1.038
2-3/8
15.06
19.18
15.91
16.61
39/64
.992
1.263
1.048
1.094
2-7/16
15.87
20.20
16.75
17.49
5/8
1.043
1.328
1.102
1.150
2-1/2
16.69
21.25
17.62
18.40
41/64
1.096
1.395
1.207
1.209
2-9/16
17.53
22.33
18.52
19.34
21/32
1.150
1.464
1.214
1.268
2-5/8
18.40
23.43
19.43
20.29
43/64
1.205
1.535
1.272
1.329
2-11/16
19.29
24.56
20.37
21.27

Top Manufacturer and Supplier of Alloy Steel F21 Bars in Da Nang, Vietnam​

Dang Steel is a top manufacturer and supplier of high-quality Alloy Steel F21 Bars products in Da Nang, Vietnam. Specializing in steel solutions, we provide a wide range of products, including Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel. Our offerings include Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates. Known for our reliable delivery and superior customer service, we are committed to offering top-tier steel materials that ensure durability and performance across a wide range of industrial applications. We strive to meet the highest standards, making us a trusted partner for all your steel needs.

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Types of Alloy Steel F21 Bars

F21 Alloy Steel Forged Bars
Alloy Steel F21 Hollow Bars
Alloy Steel F21 Polished Bars
Alloy Steel F21 Rectangular Bar
F21 Alloy Steel Hex Bars
Alloy Steel F21 Square Bars

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Uses of Alloy Steel F21 Bars

Alloy Steel F1 Bars find extensive use in boilers, pressure vessels, superheaters, and heat exchangers. In the oil & gas and chemical industries, they are essential for managing corrosive fluids and operating under high-temperature conditions. Power plants depend on these bars for turbine components and piping systems that require excellent creep resistance. Their strength, workability, and long service life also make them ideal for shafts, fasteners, valves, and precision engineering parts. Strong, versatile, and reliable, Alloy Steel F1 Bars are crucial for industries that demand durability and safety in challenging environments.

Industry We Serve

Food Industry

Oil and Gas Industry

petrochemical industry

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