SUH4
2026-02-08 16:26:00 Origin： Remark：0 Click：
G4311-1991 JIS heat resistance steel SUH4 round bar, flat bar, plate, rod ESR remelted, hot forged, hot rolled, heat treated
TECHNICAL DATA SHEET - SUH4
Official test certificate: issued by TUV - SGS - BV
Material category: heat resisting steel martensite stainless steel
Technical standards: JIS G4311 -1991
Typical chemical compositions (mass fraction %)
Annealed: 800 ~ 900, slow cooled
Typical chemical compositions (mass fraction %)
Carbon, C (％): 0.75 ~ 0.85
Silicon, Si (％): 1.75 ~ 2.25
Manganese, Mn (％): 0.20 ~ 0.60
Phosphorus, P (％): ≤ 0.030
Sulfur, S (％): ≤ 0.030
Chromium, Cr (％): 19.0 ～ 20.5
Nickel, Ni (％): 1.15 ~ 1.65
Molybdenum, Mo (％): -
MECHANICAL PROPERTIES, HEAT TREATMENT PRACTICESilicon, Si (％): 1.75 ~ 2.25
Manganese, Mn (％): 0.20 ~ 0.60
Phosphorus, P (％): ≤ 0.030
Sulfur, S (％): ≤ 0.030
Chromium, Cr (％): 19.0 ～ 20.5
Nickel, Ni (％): 1.15 ~ 1.65
Molybdenum, Mo (％): -
Annealed: 800 ~ 900, slow cooled
Solution treated or quenched: 1030 ~ 1080 oil cooled
Ageging treated or tempered: 700 ~ 800 rapid cooled
Condition: QT
Tensile strength, Rm ≥ MPa: 880
Yield strength, Rp0.2 ≥ MPa: 685
Yield strength, Rp0.2 ≥ MPa: 685
Elongation, A5 ≥ (％): 10
Reduction of area, Z ≥ (％): 15
Hardness | HBW ≤: 262 min.
Reduction of area, Z ≥ (％): 15
Hardness | HBW ≤: 262 min.
APPLICATION FIELD
Food processing equipments
Hydrometallurgy, heat exchangers
Oil and gas production equipments
Food processing equipments
Hydrometallurgy, heat exchangers
Oil and gas production equipments
Pulp mill bleach systems
Seawater handling equipments
Tall oil distillation columns and equipments
Seawater handling equipments
Tall oil distillation columns and equipments
Heat-resistant steels are widely used in the field of manufacturing the boiler, steam turbine, motive power machine, industrial furnace, and other mechanical parts of aviation, petrochemical engineering operating at high temperature. Those parts must hold the features: high temperature strength, resistance to high temperature oxide etch, enough toughness, excellent machinability, weldability, structure stability based on different usages.
Manufacturing technology - Smelting
Heat resistant steel is generally smelt in electric arc furnace or induction furnace. For higher quality,it should be smelt via technology of vacuum refining and external refining.
Manufacturing technology - Smelting
Heat resistant steel is generally smelt in electric arc furnace or induction furnace. For higher quality,it should be smelt via technology of vacuum refining and external refining.
PRODUCT DESCRIPTION
Round bar / rod : Diam.6.0 ~ 450 mm
Flat / Square bar: T10 ~ 350 X W15 ~ 620 mm
Heavy / middle plate via hot rolled: T6 ~ 200 X W10 - 1000 X L1000 ~ 6000 mm
Sheet steel via cold rolled: T0.5 ~ 6 X W60 ~ 1000 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.4 ~ 3 X W5 ~ 200 X L mm (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
Sheet steel via cold rolled: T0.5 ~ 6 X W60 ~ 1000 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.4 ~ 3 X W5 ~ 200 X L mm (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
Hot search：SUH4
Previous page：SUH 3
Last page：4820H H48200
Total list
Monthly rank
- 22X5CrNiCuNb17-4
- 14Magnadur 601
- 132Cr25N
- 13ASTM A565 type 616HT
- 12FV535
- 121.4945
- 11F71
- 1110705BA
- 11AMS 5678
- 10STS303