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SA 387 Chrome Moly Steels


ASME SA387 Steel Plates, ASME SA 387 GRADE 5 Class 1, ASME SA 387 GRADE 9 CLass1, ASME SA 387 GRADE 11 CLass1, ASME SA 387 GRADE 12 CLass1, ASME SA 387 GRADE 22 CLass1, ASME SA 387 GRADE 91 CLass1, ASME SA 387 GRADE 5 Class ASME SA 387 GRADE 9 CLass2, ASME SA 387 GRADE 11 CLass2, ASME SA 387 GRADE 12 CLass2, ASME SA 387 GRADE 22 CLass2, ASME SA 387 GRADE 91 CLass2. ASTM A387 Plates, ASTM A387 GRADE 5 CLASS 1, ASTM A387 GRADE 9 CLASS 1, ASTM A387 GRADE 11 CLASS 1, ASTM A387 GRADE 12 CLASS 1, ASTM A387 GRADE 22 CLASS 1, ASTM A387 GRADE 91 CLASS 1, 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 Supplier and exporter.

SA 387 CHROME MOLY STEEL more common applications of this grade is Refineries, Power Plants, and certain areas of Chemical Plants in environments with elevated temperatures and limited corrosion concerns. These grades can be specified in either class 1 or 2. It can also be provided in the Normalized & Tempered or Annealed conditions. The annealing process – which would meet Class 1 properties, "softens" the steel to enhance greater forming capabilities.

Chemical Requirements

Element Composition %
Grade
2
Grade
12
Grade
11
Grade
22
Grade
21
Grade
5
Grade
7
Grade
9
Grade
91
Carbon, max:
Heat anal. 0.05-0.21 0.05-0.17 0.05-0.17 0.05-0.15A 0.05-0.15A 0.15 max 0.15 max 0.15 max 0.08-0.12
Product anal. 0.04-0.21 0.04-0.17 0.04-0.17 0.04-0.15A 0.04-0.15A 0.15 max 0.15 max 0.15 max 0.06-0.15
Manganese, max:
Heat anal. 0.55-0.80 0.40-0.65 0.40-0.65 0.30-0.60 0.30-0.60 0.30-0.60 0.30-0.60 0.30-0.60 0.30-0.60
Product anal. 0.50-0.88 0.35-0.73 0.35-0.73 0.25-0.66 0.25-0.66 0.25-0.66 0.25-0.66 0.25-0.66 0.25-0.66
Phosphorus, max:
Heat anal. 0.035 0.035 0.035 0.035 0.035 0.040 0.030 0.030 0.020
Product anal. 0.035 0.035 0.035 0.035 0.035 0.040 0.030 0.030 0.025
Sulfur, max:
Heat anal. 0.040 0.040 0.040 0.035 0.035 0.030 0.030 0.030 0.010
Product anal. 0.040 0.040 0.040 0.035 0.035 0.030 0.030 0.030 0.012
Silicon:
Heat anal. 0.15-0.40 0.15-0.40 0.50-0.80 0.50 max 0.50 max 0.50 max 1.00 max 1.00 max 0.20-0.50
Product anal. 0.13-0.45 0.13-0.45 0.44-0.86 0.50 max 0.50 max 0.55 max 1.05 max 1.05 max 0.18-0.56
Chromium:
Heat anal. 0.50-0.80 0.80-1.15 1.00-1.50 2.00-2.50 2.75-3.25 4.00-6.00 6.00-8.00 8.00-10.00 8.00-9.50
Product anal. 0.46-0.85 0.74-1.21 0.94-1.56 1.88-2.62 2.63-3.37 3.90-6.10 5.90-8.10 7.90-10.10 7.90-9.60
Molybdenum:
Heat anal. 0.45-0.60 0.45-0.60 0.45-0.65 0.90-1.10 0.90-1.10 0.45-0.65 0.45-0.65 0.90-1.10 0.85-1.05
Product anal. 0.40-0.65 0.40-0.65 0.40-0.70 0.85-1.15 0.85-1.15 0.40-0.70 0.40-0.70 0.85-1.15 0.80-1.10
Nickel, max:
Heat anal. ... ... ... ... ... ... ... ... 0.40
Product anal. ... ... ... ... ... ... ... ... 0.43
Vanadium:
Heat anal. ... ... ... ... ... ... ... ... 0.18-0.25
Product anal. ... ... ... ... ... ... ... ... 0.16-0.27
Columbium:
Heat anal. ... ... ... ... ... ... ... ... 0.06-0.10
Product anal. ... ... ... ... ... ... ... ... 0.05-0.11
Nitrogen:
Heat anal. ... ... ... ... ... ... ... ... 0.030-0.070
Product anal. ... ... ... ... ... ... ... ... 0.025-0.080
Aluminum, max:
Heat anal. ... ... ... ... ... ... ... ... 0.04
Product anal. ... ... ... ... ... ... ... ... 0.05
The carbon content for plates over 5 in. (125 mm) in thickness is 0.17 max on product analysis.

Tensile Requirements For Class 1 Plates

  Grade 2 and 12 Grade 11 Grade 22, 21, 5, 7, 9
Tensile strength, ksi [MPa] 55 to 80 [380 to 550] 60 to 85 [415 to 585] 60 to 85 [415 to 585]
Yield strength min. ksi [MPa] 33 35 30
Elongation in 8 in. [200 mm], min. %A 18 19  
Elongation in 2 in. [50 mm], min. %A 22 22 18
Reduction of area, min %     45B
40C
A. See Specification A 20/A 20M.
B. Measured on round test specimens.
C. Measured on flat specimen

Tensile Requirements For Class 2 Plates

  Grade 2 Grade 11 Grade 12 Grade 22, 21, 5, 7, 9 Grade 91
Tensile strength, ksi [MPa] 70 to 90
[485 to 620]
75 to 100
[515 to 690]
65 to 85
[450 to 585]
75 to 100
[515 to 690]
85 to 110
[585 to 760]
Yield strength min. ksi [MPal]/(0.2% offset) 45 [310] 45 [310] 40 [275] 45 [310] 60 [415]
Elongation in 8 in. [200 mm], min. %B 18 18 19 ... ...
Elongation in 2 in. [50 mm], min. %B 22 22 22 18 18
Reduction of area, min % ... ... ... 45C
40D
...
A. Not applicable to anneaied material.
B. See Specification A 20/A 20M. elongation adjustments
C. Measured on round test specimen
D. Measured on flat specimen

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We Supply SA 387 Chrome Moly Steels in listed cities in India
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