Home > Speciality > Text

05Cr17Ni4Cu4Nb HEAT RESISTANT & HARDENED STEEL
2026-01-30 14:05:00 Origin： Remark：0 Click：

GB/T 1221 heat resistant & martensitic steel 05Cr17Ni4Cu4Nb round bar, flat bar, plate, forgings stock available 05Cr17Ni4Cu4Nb 1040 ℃ solution heat treated

MATERIAL DESIGNATION - 05Cr17Ni4Cu4Nb

Material specifications - GB/T 1221 -2007 heat resisting steel
Melting processing way - EF + ESR / EAF + VD + ESR
HS code for Customs - 72221100 / 72223000 / 72224000
Stock available - round bar diam. 3.0 ~ 310 mm, ESR ingot

PRODUCT DESCRIPTION
05Cr17Ni4Cu4Nb is usually produced by EAF / AOD / BEF followed by electro-slag refining (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied in the annealed, peeled condition.
Final heat treatment - soluton treated + aged, + SRA.

TYPICAL CHEMICAL ELEMENTS (mass fraction %)
Carbon, C (％): ≤ 0.07

Silicon, Si (％): ≤ 1.00

Manganese, Mn (％): ≤ 1.00

Phosphorus, P (％): ≤ 0.030
Sulfur, S (％): ≤ 0.025
Chromium, Cr (％): 15.0 ~ 17.0

Nickel, Ni (％): 3.00 ~ 5.00
Molybdenum, Mo (％): -

Copper, Cu (%): 3.00 ~ 5.00

Niobium, Nb (%): 0.15 ~ 0.45

MECHANICAL PROPERTY AT ROOM TEMPERATURE
Forms: rod, round bar, flat bar

Heat treatment practice: solution annealing 1020 ~ 1060 ℃ rapid cooling, hardness: ≤ HB 363

Class 1、solution treated 1020 ~ 1060 ℃, aged 470 ~ 490 ℃, air cooled.

Tensile strength, Rm ≥ MPa: 1310
Yield strength, Rp0.2 ≥ MPa: 1180

Elongation, A5 ≥ (％): 10.0
Reduction of area, Z ≥ (％): 40.0
Hardness via heat treatment / HBW.: 375 min.

Class 2、solution treated 1020 ~ 1060 ℃, aged 540 ~ 560 ℃, air cooled.

Tensile strength, Rm ≥ MPa: 1070
Yield strength, Rp0.2 ≥ MPa: 1000

Elongation, A5 ≥ (％): 12.0
Reduction of area, Z ≥ (％): 45.0
Hardness via heat treatment / HBW.: 331 min.

Class 3、solution treated 1020 ~ 1060 ℃, aged 570 ~ 590 ℃, air cooled.

Tensile strength, Rm ≥ MPa: 1000
Yield strength, Rp0.2 ≥ MPa: 865

Elongation, A5 ≥ (％): 13.0
Reduction of area, Z ≥ (％): 40.0
Hardness via heat treatment / HBW.: 302 min.

Class 4、solution treated 1020 ~ 1060 ℃, aged 610 ~ 630 ℃, air cooled.

Tensile strength, Rm ≥ MPa: 930
Yield strength, Rp0.2 ≥ MPa: 725

Elongation, A5 ≥ (％): 16.0
Reduction of area, Z ≥ (％): 50.0
Hardness via heat treatment / HBW.: 277 min.

Raw material stock available

Custom 450 / GD450 / XM-25 (S45000), 403 ESR, 1.4935 / AISI 616 / 422 ESR, B50A365 / 403Cb

17-4PH / 630, M-152 / 1.4938 / S151D, FV520B / S143 / 1.4594. X22CrMoV12-1 / 1.4923

13Х11Н2B2MФ / AE961W, 11Х11Н2B2MФ / 16Х11Н2B2MФ

AISI 615 / S41800, 15-5PH / XM-12 (S15500), A-286 AISI 660 / S66286 / 1.4980

10705 BB/BC, 10705BU, 10705MBU, 10705AJ

Hot search：05Cr17Ni4Cu4Nb

Previous page：05Cr17Ni4Cu4Nb
Last page：30X3MФ

Share to：

05Cr17Ni4Cu4Nb HEAT RESISTANT & HARDENED STEEL
2026-01-30 14:05:00 Origin： Remark：0 Click：

Total list

Monthly rank

05Cr17Ni4Cu4Nb HEAT RESISTANT & HARDENED STEEL 2026-01-30 14:05:00 Origin： Remark：0 Click：

Extend reading：

Total list

Monthly rank

05Cr17Ni4Cu4Nb HEAT RESISTANT & HARDENED STEEL
2026-01-30 14:05:00 Origin： Remark：0 Click：