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ASTM AISI Grade 440 stainless steel round bar rod
Description:
Stainless steel bar round bar, hexagonal bar, square bar, flat bar, solid bar.
SUS440 stainless steel commonly used models have three kinds: SUS440A, SUS440B, SUS440C, and SUS440F (easy to process type).SUS440 belongs to high-strength cutting tool steel, which is martensitic stainless steel. Due to high carbon content, it is 0.95-1.2%, and the Cr content is 16-18%. It is fully hardenable and the hardness can reach HRC58.The quenching temperature is 1010-1070 and the oil is cold.Temper 100-180 rapid cooling.High yield strength can be obtained after proper heat treatment, and the hardness can reach 58HRC, belonging to the most rigid stainless steel.
440A stainless steel has excellent quenching and hardening properties, high hardness, and higher toughness than 440B and 440C.
Used as cutting tool, measuring tool, bearing.
440B stainless steel has higher hardness and toughness than 440A steel.440B stainless steel for cutting tools, measuring tools and bearings, valves.Suitable for bayonet blade material.
440C has high hardness after quenching.It is mainly used for manufacturing bearing parts working in corrosive environment and non-lubricated strong oxidizing atmosphere.440C has good temperature properties and can also be used as corrosion-resistant high-temperature bearing steel.Good corrosion resistance (magnetic) tableware (knife), turbine blade hardened, higher hardness than 440A steel (magnetic), can be used to produce high-quality blade, pipe mouth, valve, plate ruler, tableware, knives, such as medical scalpel, scissors, nozzle, bearing, etc.
Chemical Composition
| AISI Material | Chemical Composition | ||||||
| Compsition | C Max% | Si Max% | Mn Max% | P Max% | S Max% | Cr% | Mo% |
| 440A | 0.60-0.75 | 1.0 | 1.0 | 0.04 | 0.03 | 16-18 | 0.075 |
| 440B | 0.085-0.95 | 1.0 | 1.0 | 0.035 | 0.03 | 16-18 | 0.075 |
| 440C | 1.10 | 1.0 | 1.0 | 0.035 | 0.03 | 16-18 | 0.075 |
| 440F | 0.95-1.2 | 1.0 | 1.25 | 0.06 | 0.15 | 16-18 | 0.075 |
Specification
| Standard | GB, AISI/JIS, SUS, UNS, ASTM |
| Material | 201 202 204 207 207CU 301 302 303 303B 304 304L 304N 308 308L 309 309L 309S 310 310S 314 316 316L 317L 321 330 347 348 384 410 420 430 440A 440B 440C 440F |
| 1.Round bar 1) Hot rolled black bar: (5-400)x6000mm or according to your requirement 2) Acid round bar: (5-400)x6000mm or according to your requirement 3) Cold drawn bright bar: (1-20)x6000mm or according to your requirement 4) Polishing round bar: (5-400)x6000mm or according to your requests |
| 2. Square bar 1) Hot rolled black bar: (5*5-400*400)x6000mm or according to your requests 2) Acid square bar: (5*5-400*400)x6000mm or according to your requests 3) Cold drawn square bar: (1*1-20*20)x6000mm or according to your requests 4) Polishing square bar: (5*5-400*400)x6000mm or according to your requests |
| 3. Flat bar 1) Hot rolled flat bar: (3-30)*(10-200mm)*6000mm or according to your requests 2) Cold drawn flat bar: (3-30)*(10-200mm)*6000mm or according to your requests |
| 4. Hexagon bar 1) Hot rolled hexagon bar: (5-100)x6000mm or according to your requests 2) Acid hexagon bar: (5-100)x6000mm or according to your requests 3) Cold drawn hexagon bar: (1-20)x6000mm or according to your requests t 4) Polishing hexagon bar: (5-100)x6000mm or according to your requests |
Product Show:
Application:
Manufacturing high quality blade, pipe nozzle, valve, plate ruler, tableware, cutting tools, such as surgical knife, scissors, nozzle, bearing, etc.