Chung Metal manufactures Stainless Steel 440C Bars and Rods in Da Nang, Vietnam, with high hardness and superior wear resistance. 440C is a high-carbon martensitic stainless steel for precision-made parts needing endurance and resistacorrosionnce to . Chung Metal’s state-of-the-art manufacturing provides uniform surface finish, accurate dimensions, and mechanical integrity. The bars and rods can withstand high stress and abrasion and are well-suited for tool manufacturing and industrial machinery use.
440C has 1.0–1.2% carbon, 16–18% chromium, and minor molybdenum. It attains tensile strength of up to 900 MPa and hardness of up to 60 HRC through hardening. The alloy possesses great wear resistance, strength, and moderate corrosion resistance in mild environments.
| Specification | ASTM A479/ SA479 ASTM A276/ ASME SA276 |
|---|---|
| Grade | Stainless Steel 440C (UNS S44004) |
| Hex Bar size | 18 to 57mm (11/16″ – 2-3/4″) |
| Round bar size | OD 4mm to 500mm |
| Square bar size | 18mm to 47mm (11/16″- 1-3/4″) |
| Billet Size | 1/2″- 495mm Dia. |
| Rectangles Size | 33 x 30mm – 295 x 1066mm |
| Bright Bar | OD 4mm to 100mm |
| Tolerance | K12 H12, K10, H9, H11, H8, H13K9, H10, K11, or as per need |
| Flat bar size | 1/2” to 10” in thickness of 2 to 150mm |
| Angle bar size | 3*20*20~12*100*100 |
| Finish | centreless ground, Cold (bright) drawn, hot rolled, peeled, smooth turned, hot rolled annealed, slit rolled edge, Bright, Rough Turned, Grinding, Polish & Black |
| Form | Flat Bar, Hollow, Round, Square, Triangle, Rectangle, Half Round Bar, Rod, T-Bar, Precision Ground Bar, Hex (A/F), Blocks, Channel Bar, Threaded, Round Rod, Billet, Profiles, I/H Bar, Ingot, Rings, Forging etc. |
| Technique | 440C Stainless Steel Hot Rolled, Cold Drawn, Rod, Forged Round Bar, Cold Rolled |
| Condition | annealed, Hardened & tempered |
| Section | 3.0 -12.0 mm thickness, 80 x 40 to 150 x 75mm section |
| Channel Bar | 5.0 – 6.0mm thickness |
| Surface | Bright, Cold Drawn, Hot Rolled Pickled, Sand Blasting Finished, Polished, Hairline |
| Hollow Bar | 32mm OD x 16mm ID – 250mm OD x 200mm ID |
|
SS 440C |
Min |
Max |
|---|---|---|
|
Si |
– |
1.00 |
|
C |
0.95 |
1.20 |
|
Mo |
0.00 |
0.75 |
|
P |
– |
0.04 |
|
Ni |
– |
1.00 |
|
Mn |
– |
1.00 |
|
Cr |
16.00 |
18.00 |
|
S |
0.15 |
0.03 |
|
Element |
SS 440C |
|---|---|
|
Tensile (UTS)N/mm² |
1965 |
|
Temp°C |
20 |
|
Reductionof Area |
10 |
|
Elongation(50.8mm) %) |
2 |
|
0.2% YieldN/mm² |
1896 |
|
HardnessHRc |
57 |
|
STANDARD |
UNS |
WERKSTOFF NR. |
JIS |
|---|---|---|---|
|
SS 440C |
S44004 |
1.4125 |
SUS 440C |
Stainless Steel 440C Bars and Rods are known for their high hardness, achieving up to 58-60 HRC when heat-treated. This makes them ideal for applications requiring excellent wear and abrasion resistance.
Stainless Steel 440C offers good corrosion resistance in mild environments, but for more aggressive conditions (like exposure to saltwater), it is recommended to use more corrosion-resistant stainless steel grades like 316 or 317.
440C bars and rods are applied in bearings, valve parts, dies, medical instruments, and cutting tools. They excel in those applications where corrosion and abrasion resistance is necessary. Chung Metal’s 440C bars exhibit long-term reliability for precision and mechanical industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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