ASTM A387 Grade 12 Class 2 Pressure Vessel Steel PLATE

 

1.Chrome Moly Plate Home Page

ASTM A387

ASTM A387 Grade 5 Class 2 | ASTM A387 Grade 9 Class 2 | ASTM A387 Grade 11 Class 2

ASTM A387 Grade 12 Class 2 | ASTM A387 Grade 22 Class 2 | ASTM A387 Grade 91 Class 2

 

2.We are stockists and suppliers of A387 Grade 12 Class 2 chrome molybdenum steel plates.A387 Grade 12 Class 2 is a high quality chrome molybdenum steel which is ideal for elevated temperature service and offers excellent anti corrosion characteristics.

 

3.The steel has a wide range of uses including industrial boilers and pressure vessels, especially in environments where high temperature levels are common.

 

4.Equivalents

BS

EN

ASTM/ASME

DIN

620 B

13 CRMO 45

A387-12-2

13 CRMO 44

 

 

5.Specifications

Chromium & Molybdenum content (according to the ASTM specification):

Designation

Nominal Chromium
Content (%)

Nominal Molybdenum
Content (%)

A387 Grade 12

1.00%

0.50%

 

 

6.Tensile Requirements for Class 2 Plates

Designation:

Requirement:

Grade 12

A387 Grade 12

Tensile strength, ksi [MPA]

65 to 85 [450 to 585]

 

Yield strength, min, ksi [MPa]/(0.2% offset)

40 [275]

 

Elongation in 8 in. [200mm], min %

19

 

Elongation in 2 in. [50mm], min, %

22

 

Reduction of area, min %

–––

 

 

7.Chemical Requirements

Element

 

Chemical Composition (%) inc. Grade & UNS No.

 

 

Grade 12 (UNS: K11757)

Carbon:

Heat Analysis:

0.05 - 0.17

 

Product Analysis:

0.04 - 0.17

Manganese:

Heat Analysis:

0.40 - 0.65

 

Product Analysis:

0.35 - 0.73

Phosphorus:

Heat Analysis:

0.035

 

Product Analysis:

0.035

Sulphur (max):

Heat Analysis:

0.035

 

Product Analysis:

0.035

Silicon:

Heat Analysis:

0.15 - 0.40

 

Product Analysis:

0.13 - 0.45

Chromium:

Heat Analysis:

0.80 - 1.15

 

Product Analysis:

0.74 - 1.21

Molybdenum:

Heat Analysis:

0.45 - 0.60

 

Product Analysis:

0.40 - 0.65

 

 

8.Tension Test Requirements:

We shall be tested using a test specimen will confirm to the tensile requirements as outlined in Table 2.

 

9.Other requirements:

The following requirements and testing procedures (which are not mandatory) are considered suitable for Chrome Molybdenum steel:

Vacuum treatment

Product Analysis

Additional Tension Test

Charpy V-Notch Impact Test

Drop Weight Test

High Temperature Tension Test

Ultrasonic Examination

Magnetic Particle Examination

 

 

10.To find out more about our's services and ASTM A387 Grade 12 Class 2 steel plates which we can supply directly to you from stock or from the mill, Please contact us.

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