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AMS 5621 Stainless Steel 420 Round Bar Supplier

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Stainless Steel Round Bar Supplier

Round Bar Products

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Multinox Inc Delivers WNR 1.4021 Stainless Steel 420 Round Bar That Hardens Beautifully — Heat Treat It, Sharpen It, Trust It.

Available Forms & Types

Most Common

Round Bars

Cold drawn, centreless ground & polished. Used in shafts, fasteners, machined components.

  • OD: 4mm to 500mm
  • Bright / Polish / Black finish
  • Length: 1–6 metres
Precision

Hex Bars

Across-flat 18mm–57mm. Ideal for bolt, nut & valve body machining applications.

  • 18mm – 57mm A/F
  • Cold drawn condition
  • Non-magnetic grade
Structural

Square Bars

Used in structural fabrication, tooling and engineering. Custom sizes available.

  • 18mm – 47mm
  • Bright / Rough Turned
  • Custom sizes on request
Wide Range

Flat Bars

Width ½" to 10", thickness 2mm to 150mm. Sheared & edged or hot-rolled condition.

  • Width: ½" to 10"
  • Thickness: 2–150mm
  • Custom width available
Hollow

Hollow Bars

Seamless hollow bar for bushings, sleeves & valve bodies. Saves machining time.

  • OD: 4mm to 100mm
  • Various wall thickness
  • Centreless ground
High Strength

Forged Bars

Hot forged for superior grain structure. Heavy-duty industrial and aerospace use.

  • 15mm to 300mm
  • Ultrasonic tested
  • Rough turned finish

AMS 5621 Stainless Steel 420 Round Bar — Specifications

Precision straightened with defect-free surfaces — every Stainless Steel 420 Round Bar is inspected to ASTM A276 before dispatch.

StandardASTM A479, ASTM A276, AMS 5511, AMS 5513, AMS 5647
DimensionsDIN, EN, ASTM, JIS, ASME, BS, AISI
Hex Bar Size2-100mm A/F
Round Bar SizeDiameter: 3-~800mm
Flat Bar SizeThickness: 2 -100mm
Width: 10 to 500mm
Angle Bar Size3mm*20mm*20mm~12mm*100mm*100mm
Square Bar Size4 to 100mm
Channel Bar80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness
Rectangular Bars Section3.0 to 12.0mm thickness
Threaded Bar Billet Size1/2 to 495mm Diameter
Rectangles Size33 x 30mm to 295 x 1066mm
Hollow Bar32mm OD x 16mm ID to 250mm OD x 200mm ID)
ToleranceH8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
FinishCold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black
SurfaceHot Rolled Pickled, Bright, Sand Blasting Finished, Cold Drawn, Hairline,Polished
FormRod, Round, Channel Bar, T-Bar, Flat Bar, Precision Ground Bar, Blocks, Square, Rings, Round Rod, Triangle, Hollow, Rectangle, Threaded, Hex (A/F), Profiles, Half Round Bar, Ingot, Billet, I/H Bar, Forging etc.
 

Chemical Composition of ASTM A276 Stainless Steel 420 Round Bar

Chromium guards against rust while carbon builds hardness — Stainless Steel 420 Round Bar balances both effortlessly.

C
0.15 max
Carbon
Mn
1.00 max
Manganese
Si
1.00 max
Silicon
P
0.04 max
Phosphorus
S
0.03 max
Sulphur
Cr
12.0 – 14.0%
Chromium
Mo
–
Molybdenum
Ni
–
Nickel
Fe
Balance
Iron

Chekc our UNS S42000 Round Bar Equivalent Grades

European drawings call for WNR 1.4021, American specs ask for S42000 — Stainless Steel 420 Round Bar satisfies both instantly.

Grade
SS 420
Material
WNR
1.4021
Werkstoff No.
UNS
S42000
UNS
JIS
SUS 420
Japanese Standard

View WNR 1.4021 Round Bar Mechanical Properties

Stainless Steel 420 Round Bar reaches hardness levels most stainless grades can only dream of, straight after proper tempering.

Tensile Strength ksi (MPa) minYield Strength 0.2% offset ksi (MPa) minElongation (% in 50mm) minHardness (Brinell) MAXHardness (Rockwell B) MAX
65 (450)30 (205)2021796

Stainless Steel 420 Round Bar Size Range

SS hex bar Size in Inches
SS hex bar Wt per Ft
SS hex bar Wt per 12′
3/16″
0.104
1.248
1/4″
0.180
2.160
5/16″
0.290
3.480
3/8″
0.420
4.920
7/16″
0.560
6.72
1/2″
0.740
8.880
9/16″
0.930
11.16
5/8″
1.150
13.80
11/16″
1.390
16.68
3/4″
1.660
19.92
13/16″
1.950
23.40
7/8″
2.300
27.60
15/16″
2.600
31.20
1″
2.90
34.80
1-1/16″
3.30
39.60
1-1/8″
3.700
44.40
1-1/4″
4.600
55.20
1-5/16″
5.100
61.20
1-3/8″
5.600
67.20
1-7/16″
6.100
73.20
1-1/2″
6.600
79.20
1-5/8″
7.800
93.60
1-3/4″
9.030
108.36
1-7/8″
10.400
124.80
2″
11.80
141.60
2-1/4″
14.920
179.04
2-3/8″
16.920
203.04
2-1/2″
18.42
221.04
3″
26.53
318.36

Recent Stainless Steel 420 Round Bar Export Deliveries

🇸🇦
Saudi Aramco Total
Al Jubail, Saudi Arabia
18mm Diameter Bright Round Bars, Stainless Steel 420
Delivered in 7 days
🇺🇸
Hess Corporation
New York City, USA
UNS S42000 Peeled & Turned Bars, 35mm
Delivered in 14 days
🇬🇧
Shell PLC
London, United Kingdom
Polished Round Bars, 22mm Diameter
Delivered in 14 days
🇦🇪
ADNOC
Abu Dhabi, UAE
AMS 5621 Cold Drawn Round Bars, 55mm
Delivered in 5 days
🇿🇦
Sasol Limited
Johannesburg, South Africa
70mm Centerless Ground Bars, Stainless Steel 420
Delivered in 21 days
🇩🇪
BASF SE
Ludwigshafen, Germany
WNR 1.4021 Hot Rolled Black Bars, 48mm
Delivered in 18 days

Availability of ASTM A276 Stainless Steel 420 Round Bar

Stainless Steel 420 Bright Round BarASTM A276 Black Round Bar
UNS S42000 Polished Round BarAMS 5621 Peeled Round Bar
WNR 1.4021 Turned Round BarASTM A479 Ground Round Bar
Stainless Steel 420 Cold Drawn Round BarASTM A276 Hot Rolled Round Bar
AMS 5621 Peeled & Polished Round BarUNS S42000 Centerless Ground Round Bar
ASTM A479 Bright BarWNR 1.4021 Black Bar
Stainless Steel 420 Polished BarUNS S42000 Peeled Bar
AMS 5621 Turned BarASTM A276 Ground Bar
WNR 1.4021 Cold Drawn BarASTM A479 Hot Rolled Bar
UNS S42000 Peeled & Polished BarStainless Steel 420 Centerless Ground Bar

Check ASTM A479 Stainless Steel 420 Round Bar Latest Prices

Multinox INC offers UNS S42000 Round Bars at one of the most competitive prices in India. Request the latest Pricelist using the contact form here.