F22/P22/10CrMo9-10/12Cr2Mo alloy steel-Zhangjiagang Maiterio Intelligent Equipment Company

Benefits

Benefits:
Excellent High-Temperature Strength: Maintains mechanical properties up to around 600°C.
Superior Creep Resistance: Suitable for long-term exposure under thermal and mechanical stress.
Good Toughness and Weldability: Ideal for complex pressure vessel fabrication.
Oxidation and Corrosion Resistance: Enhanced durability in aggressive environments.
Thermal Fatigue Resistance: Resists deformation and cracking during thermal cycling.

Heat Treatment

Heat Treatment	Temperature	Medium	Purpose
Normalizing	940–980°C	Air cooling	To optimize grain structure
Tempering	700–720°C	Air cooling (Industry Standards)	To improve toughness and relieve residual stresses
Post-Weld Heat Treatment (PWHT)	550–650°C (Industry Standards)	Furnace cooling (Industry Standards)	To ensure structural integrity and reduce brittleness

Applications

Applications:
Boiler drums and headers
Heat exchangers and superheaters
Pressure vessels and reactors
Petrochemical and refinery piping
Power generation equipment

Availability

Availability:
Available in Continuous Casting Steel / Steel Ingots / Steel Plates / Customized Steel.

Parameter

Alloy steel

Grade Equivalents

Mechanical Properties(Q+T)

Hardness

Chemical Composition(%)

AISI/ASTM

EU

GB

Tensile /MPa

yield /MPa

Elongation/%

Reduction of area/%

Impact Energy/J

N/HB

Q+T/HB

C

Si

Mn

P

S

Cr

Mo

Other

A572 Gr.50

S355JR/ST52-3

Q355E

≥450

≥345

≥18

≥40

≥20

150 - 180

180 - 220

≤0.23

≤0.60

1.30 - 1.65

≤0.035

-

N≤0.012, Cu≤0.55

4118

20CrMoS4/20CrMo5

20CrMo

≥540

≥350

≥15

≥45

≥25

140 - 180

180 - 220

0.18 - 0.23

0.15 - 0.35

0.70 - 0.90

≤0.035

0.40 - 0.60

0.08 - 0.15

-

4130

34CrMo4/25CrMo4

30CrMo

≥670

≥435

≥16

≥50

≥30

170 - 200

220 - 260

0.28 - 0.33

0.15 - 0.35

0.70 - 0.90

≤0.035

0.80 - 1.10

0.15 - 0.25

-

4140

EN 19/42CRMO4

42CrMo

≥850

≥655

≥12

≥45

≥25

180 - 230

270 - 320

0.38 - 0.43

0.15 - 0.35

0.75 - 1.00

≤0.035

0.80 - 1.10

0.15 - 0.25

-

5120

20Cr4

20Cr

≥500

≥350

≥16

≥50

≥30

140 - 180

180 - 220

0.17 - 0.22

0.15 - 0.35

0.70 - 0.90

≤0.035

0.70 - 0.90

-

5140

41Cr4

40Cr

≥700

≥450

≥14

≥45

≥25

170 - 220

250 - 300

0.38 - 0.44

0.15 - 0.35

0.70 - 0.90

≤0.035

0.70 - 0.90

-

A387 Gr.11 CL2

13CrMo4-5

12Cr1MoV

≥520

≥310

≥18

≥45

≥27

140 - 160

180 - 220

0.08 - 0.15

0.17 - 0.37

0.40 - 0.70

≤0.035

0.90 - 1.20

0.25 - 0.35

V 0.15 - 0.30

SAE 52100

100Cr6

GCr15

≥2000

≥1400

≥5

≥20

≥10

300 - 400

640 - 730

0.95 - 1.05

0.15 - 0.35

0.25 - 0.45

≤0.025

1.30 - 1.60

-

Ni ≤0.25
Cu≤0.25

F11/P11

13CrMo4-5

15CrMo

≥420

≥205

≥20

≥50

≥20

140 - 160

180 - 210

0.05 - 0.15

≤0.50

0.30 - 0.60

≤0.035

1.00 - 1.50

0.44 - 0.65

-

F21/P22

10CrMo9-10

12Cr2Mo

≥420

≥205

≥20

≥50

≥20

140 - 160

180 - 220

0.05 - 0.15

≤0.50

0.30 - 0.60

≤0.035

2.00 - 2.50

0.87 - 1.13

F91/P91

X10CrMoVNb9-1

-

≥585

≥415

≥18

≥50

≥40

180 - 220

190 - 250

0.08 - 0.12

0.20 - 0.50

0.30 - 0.60

≤0.020

≤0.010

8.00 - 9.50

0.85 - 1.05

-

9260

60SiCr7

60Si2Mn

≥1200

≥1000

≥8

≥30

≥15

200 - 250

430 - 480

0.56 - 0.64

1.50 - 2.00

0.60 - 0.90

≤0.030

≤0.035

≤0.35

-

H13

X40CrMoV5-1

4Cr5MoSiV1

≥1500

≥1300

≥7

≥30

≥20

180 - 220

450 - 500

0.32 - 0.45

0.80 - 1.20

0.20 - 0.50

≤0.030

4.75 - 5.50

1.10 - 1.75

V 0.80 - 1.20

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