SA387 Grade 12 Steel Plates

SA387 Grade 12 Class 1 Plate & SA387 Grade 12 Class 2 Plate Supplier in India.

Biggest Stockholder of SA387 Alloy Steel Plates in Mumbai, SA387 Grade 12 Chrome Moly Plate sourced from Best Mills in World, SA387 Gr.12 Plate 000 Metric Tons Ready Stock Inventory

Alloy Steel Plate, Alloy Steel Grade 12 Sheet, ASTM A387 Grade 12 Steel Plate, Chromium-Molybdenum Alloy Steel Gr.12 Pressure Vessel Plates, A387 Grade 12 Sheet, Alloy Steel Gr. 12 CL 1 Hot Rolled Plate Stockist, A387 Grade 12 Class 2 Alloy Steel CR Sheet, ASME SA387 Gr 12 Chrome Moly Sheet, Grade 12 Alloy Steel Plates Supplier In Mumbai, India.

ASME SA387 Grade 12 Steel Plate Engineered for use in elevated temperature service, ASME SA387 Grade 12 Steel Plate is a chrome molybdenum carbon alloy steel for use in weldable pressure vessels and industrial boilers.

The material benefits from added chromium which provides excellent corrosion and oxidation resistance making it ideal for sour service applications in the oil and gas industry.

Excellent corrosion resistance and high temperature resistance respectively.

ASME SA387 Grade 12 standard plates are used by the world's leading fabricators who in turn, supply primarily to the oil and petrochemical industry. Applications for ASME SA387 include pressurized vessels, industrial boilers, heat exchangers and Pipe work.

We can supply:
Thickness from 5mm to 150mm
Width: from 1,500mm to 2,500mm
Length: from 6,000mm to 12,000mm

Technical conditions of SA 387 Grade 12 Alloy Steel Plates
1) Ultrasonic tested as per SA 578 or any other as per requirement
2) MTC acc to EN 10204 / 3.2
3) Charpy Impact tested at -29° C / - 46° C / -52° C
4) Furnace Normalised
5) Hot-Rolled (HR)

SA387 GR.12 Plate Processing
Cutting
Forming Drilling/ Machining
Grinding
Testing

The Following Grades Are Available:
ASTM / ASME SA 387 GR. 11 CL. 1 / 2
ASTM / ASME SA 387 GR. 12 CL. 1 / 2
ASTM / ASME SA 387 GR. 9 CL. 1 / 2
ASTM/ ASME SA 387 GR. 22 CL. 1 / 2
ASTM / ASME SA 387 GR. 5 CL. 1 / 2
ASTM / ASME SA 387 GR.91 CL. 1 / 2

ASME SA387 Specification

The ASME SA387 standard covers the supply of weldable chrome molybdenum alloy steel plates for pressure vessels used in elevated temperature service.

The added molybdenum and chromium provides excellent corrosion resistance and high temperature resistance respectively.

ASME SA387 standard plates are used by the world’s leading fabricators who in turn, supply primarily to the oil and petrochemical industry.

Sourced from some of Western Europe’s & India's finest steel mills, Prosaic Steel and Alloys stock a wide range of ASME SA387 Class 2 plates which are available for shipment worldwide.

Specifications ASME SA387 Grade 5 Alloy Steel Plates:
Chromium & Molybdenum content (according to the ASME specification):

Designation Nominal Chromium
Content (%)
Nominal Molybdenum
Content (%)
SA387 Grade 5 5.00% 0.50%

Chemical Requirements for ASME SA387 Grade 5 Class 2 Plates

Elements (%) ASME SA387 Grade 5 ASME SA387 Grade 9 ASME SA387 Grade 11 ASME SA387 Grade 12 ASME SA387 Grade 22 ASME SA387 Grade 91
Carbon Heat 0.15 max 0.15 max 0.05–0.17 0.05–0.17 0.05–0.15a 0.08–0.12
Product 0.15 max 0.15 max 0.04–0.17 0.04–0.17 0.04–0.15a 0.06–0.15
Manganese Heat 0.30–0.60 0.30–0.60 0.40–0.65 0.40–0.65 0.30–0.60 0.30–0.60
Product 0.25–0.66 0.30–0.60 0.35–0.73 0.35–0.73 0.25–0.66 0.25–0.66
Phosphorus, max Heat 0.025 0.025 0.025 0.025 0.025 0.020
Product 0.025 0.025 0.025 0.025 0.025 0.025
Sulphur, max Heat 0.025 0.025 0.025 0.025 0.025 0.010
Product 0.025 0.025 0.025 0.025 0.025 0.012
Silicon Heat 0.50 max 1.00 max 0.50–0.80 0.15–0.40 0.50 max 0.20–0.50
Product 0.55 max 1.05 max 0.44–0.86 0.13–0.45 0.50 max 0.18–0.56
Chromium Heat 4.00–6.00 8.00–10.00 1.00–1.50 0.80–1.15 2.00–2.50 8.00–9.50
Product 3.90–6.10 7.90–10.10 0.94–1.56 0.74–1.21 1.88–2.62 7.90–9.60
Molybdenum Heat 0.45–0.65 0.90–1.10 0.45–0.65 0.45–0.60 0.90–1.10 0.85–1.05
Product 0.40–0.70 0.85–1.15 0.40–0.70 0.40–0.65 0.85–1.15 0.80–1.10
Nickel Heat - - - - - 0.40
Product - - - - - 0.43
Vanadium Heat - 0.04 max - - - 0.18–0.25
Product - 0.04 max - - - 0.16–0.27
Columbium Heat - - - - - 0.06–0.10
Product - - - - - 0.05–0.11
Nitrogen Heat - - - - - 0.030–0.070
Product - - - - - 0.025–0.080
Aluminum, max Heat - - - - - 0.02
Product - - - - - 0.02
Titanium, max Heat - - - - - 0.01
Product - - - - - 0.01
Zirconium, max Heat - - - - - 0.01
Product - - - - - 0.01
a The carbon content for plates over 5 in. [125 mm] in thickness is 0.17 max on product analysis.

Mechanical Properties and Tensile Requirements for ASME SA387 Grade 5 Class 1 Plates

Grades 2 and 12 Grade 11 Grades 22, 21, 5, 9, 21L, 22L
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 [230] 35 [240] 30 [205]
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, % - - 45 b
- - 40 c
a See Specification A20/A20M, elongation adjustments.
b Measured on round test specimens.
c Measured on flat specimen.

Mechanical Properties and Tensile Requirements for ASME SA387 Grade 5 Class 2 Plates

Grade 2 Grade 11 Grade 12 Grades 22,
21, 5, 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]
70 to 90
[585 to 760]
Yield strength, min,
ksi [MPa]/(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 8 in.
[50 mm], min, % b
22 22 22 18 18
Reduction of area, min, % - - - 45 b -
- - - 45 c -
a Not applicable to annealed material.
b See Specification A20/A20M, elongation adjustments.
c Measured on round test specimens.
d Measured on flat specimen.

SA387 Grade 12 Steel Plates Sizes Available in Stock with Price

  • 0.2 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 0.3 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 0.4 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 0.8 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 1 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 1.612 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 2.11 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 3.1 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 04 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 012 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 06 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 08 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 10 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 12 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 112 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 16 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 18 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 20 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 22 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 212 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 28 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 30 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 32 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 312 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 36 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 38 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 40 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 42 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 412 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 120 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 122 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 60 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 62 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 612 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 70 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 80 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 90 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 100 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 110 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 120 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates
  • 120 MM THICKNESS x WIDTH 1000 MM / 12120 MM / 11200 MM / 2000 MM / 21200 MM X LENGTH 1000 MM / 21200 MM / 3000 MM / 6000 MM / COIL CUT in SA387 Grade 12 Class 1/2, SA387 Grade 12 Alloy Steel Plates, SA387 Grade 12 Chrome Moly Plates

We export SA387 Grade 12 Steel Plates to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc.

Prosaic Steel and Alloys is a well known worldwide exporter of SA387 Grade 12 Alloy Steel Plates, Prosaic Steel and Alloys is committed to provide each and every customer with the highest standard of customer service. We deals in SA387 Grade 12 Plates in India & Overseas, offering a wide range of SA387 Grade 12 Alloy Steel Plates

Prosaic Steel and Alloys is Leading Manufacturer, Distributor, Exporter, Stockholder and Supplier of SA387 Grade 12 Steel Plates in United States of America (USA), Saudi Arabia, Italy, Netherlands, Germany, Canada, Singapore, Malaysia, Indonesia

Alloy Steel A387 Plate | Prosaic Steel and Alloys is a force to reckon with in the field of Supplying and Exporting premium quality of Alloy Steel A387 Grade 11 Plate | Alloy Steel A387 Grade 12 Plate Prosaic Steel is a Exporters of Alloy Steel A387 Grade 22 Plate | Alloy Steel A387 Grade 22 Plate Suppliers | Alloy Steel A387 Grade 5 Plate Manufacturers | Alloy Steel A387 Grade 91 Plate in India