Why Specifiers Recommend Ganpat Industrial Corporation For Alloy Steel Gr 22 Plate?
Since 1997
Nearly three decades supplying Cr-Mo alloy steel plate and long products from Mumbai
Manufacturer & Stockist
Forged fittings, bars and fasteners plus stocked alloy steel plate, sheet and coil
ISO 9001:2015
Quality management system certified and independently audited every year
PED & Petrofac Approved
Cleared for European pressure equipment projects and Petrofac vendor lists
Full Documentation
Mill test certificate, PMI report and UT record offered on every batch
Alloy Steel Gr 22 Plate Functionalities
- 1Material Basis: Chromium-Molybdenum Alloy Steel • UNS K21590 • 2.25Cr-1Mo Composition
- 2Governing Standard: ASTM A387 Grade 22 • ASME SA387 • Class 1 & Class 2
- 3Thickness Range: 3mm To 200mm, Width Up To 3350mm
- 4Alloy Content: 2.00 – 2.50% Cr & 0.90 – 1.10% Mo For Creep Strength
- 5Equivalents: DIN 10CrMo9-10 • JIS SCMV4 • BS 1501-622 Gr 515
- 6Forms Supplied: Plate, Sheet, Coil, Strip, Shim Sheet & Foil
Mumbai works desk • WhatsApp +91 85912 64209 • Same-day size-wise quote
Ganpat Industrial Corporation has served Indian and export plate buyers since 1997. We are a dependable Alloy Steel Gr 22 Plate Supplier in India. Alloy Steel Gr 22 Plate carries 2.00-2.50% chromium and 0.90-1.10% molybdenum. This chemistry resists creep and holds strength at elevated temperatures. It performs far better than plain carbon steel. We stock ASTM A387 Grade 22 Class 1 and Class 2 material. Our Plates, Sheets, and Coils range from 3mm to 200mm in thickness. Every plate is rolled, normalized, and tempered to ASME SA387. We test all plates against ASTM A20 general requirements. We machine, cut-to-size, and test each lot at our Mumbai facility. Every despatch carries a mill test certificate confirming heat and product chemistry. We regularly supply this range to Vadodara, Chennai, and Kandla. We also export to Dubai, Jebel Ali, Rotterdam, and Houston.
Mumbai · Chromium-Molybdenum Alloy Steel Plate Stockist & Exporter
Explore Gr 22 Alloy Steel Plates, Cl1 & Cl2, Ideal for Pressure Vessel & Reactor Builds
Ganpat Industrial is a driven-pricing Alloy Steel Gr 22 Plate Supplier in India. We stock ASTM A387 Grade 22 Class 1 and Class 2 Plates, Sheets and Coils from 3mm to 200mm thickness for petrochemical reactors and boiler shells.
- ✓ISO 9001:2015
- ✓ISO 14001:2015
- ✓OHSAS 18001:2007
- ✓PED Certified
- ✓Petrofac Approved
UNS Designation
K21590
2.25Cr-1Mo alloy steel
Chromium-Molybdenum
2.0-2.5% Cr
0.90-1.10% Mo for creep strength
Governing Standard
ASTM A387
Also to ASME SA387 & SA20
Thickness Range
3mm – 200mm
Class 1 & Class 2 tension levels
Discover ASTM A387 Grade 22 Sheet Supplier in India with Excellent Creep Resistance
Specification Of Alloy Steel Gr 22 Plate
As Alloy Steel Gr 22 Plate Supplier in India checks specs before dispatch.
Material Basis
- Chromium-Molybdenum Alloy Steel
- UNS K21590
- 2.25Cr-1Mo Composition
- Killed, Fine Grain Practice
Governing Plate Standards
- ASTM A387 Grade 22
- ASME SA 387 Alloy Steel Grade 22 Plates
- General Reqs To ASTM A20/A20M
- Tolerance Reference ASTM A480
Plate Size Range
- Thickness 3mm To 200mm
- Width Up To 3350mm
- Length Up To 15000mm
- Custom Cut-To-Size On Request
Product Forms Supplied
- Gr 22 Alloy Steel Hot Rolled Plates
- Alloy Steel Gr 22 Cold Rolled Plates
- Sheets, Coils & Slatting Coil
- Shim Sheets, Foils & Strips
Delivery Condition
- Normalized & Tempered (Standard)
- Annealed Condition On Request
- Class 1 Or Class 2 Tension Level
- Mill Edge Or Slit/Sheared Edge
Production Route
- Slab Cast & Hot Rolled
- Normalizing & Tempering Line
- Quench & Temper On Request
- Shot Blasted Or Polished Finish
Testing Offered
- Chemical / PMI Analysis
- Tensile, Yield & Impact Test
- Ultrasonic Testing (UT)
- Third Party Inspection
Matching Products
- Gr 22 Round Bar & Forged Fittings
- ASTM A182 F22 Flanges
- ASTM A335 P22 Pipe
- ASTM A234 WP22 Buttweld Fittings
Packing
- Wooden Crated Or Bundled
- Edge-Protected Sheet Packs
- Heat & Batch Number Tags
- VCI Paper For Sea Freight
ASTM A387 Gr 22 Sheet Thickness & Weight Chart
Approximate weight per square metre, calculated at a density of 7.86 g/cm³.
| Thickness (mm) | Weight (kg/m²) | Weight (lb/ft², Approx) |
|---|---|---|
| 5 | 39.3 | 8.1 |
| 10 | 78.6 | 16.1 |
| 16 | 125.8 | 25.8 |
| 25 | 196.5 | 40.3 |
| 40 | 314.4 | 64.4 |
| 63 | 495.2 | 101.4 |
| 100 | 786.0 | 161.0 |
| 150 | 1179.0 | 241.5 |
| 200 | 1572.0 | 322.0 |
Types Of Alloy Steel Gr 22 Plates, Sheets & Coils We Supply
A trusted Alloy Steel Gr 22 Plate Manufacturer stocks heavy plate down to shims.
Gr 22 Alloy Steel Hot Rolled Plates
HR Plate
Alloy Steel Gr 22 Cold Rolled Plates
CR Plate
Alloy Steel Gr 22 Sheets
Sheet
Alloy Steel Gr 22 Coils
Coil
Alloy Steel Grade 22 Slatting Coil
Slit Coil
Alloy Steel Grade 22 Shim Sheets
Shim
Alloy Steel Gr 22 Foils
Foil
Alloy Steel Gr 22 Strips
Strip
Need Gr 22 Alloy Steel Plate In A Hurry?Mail the thickness and size list, we quote inside 24 hours for heavy plate too.
Shop Gr 22 Alloy Steel Cl1/Cl2 Normalized & Tempered Plates in Thickness 3mm to 200mm for Petrochemical Reactor Applications
Gr 22 Alloy Steel Hot Rolled Plates Chemical Composition
Composition held against SA387 Grade 22 Alloy Steel Plates heat analysis limits.
IronFe
Balance
ChromiumCr
2.00 – 2.50%
MolybdenumMo
0.90 – 1.10%
ManganeseMn
0.30 – 0.60%
SiliconSi
0.50% max
PhosphorusP
0.035% max
SulphurS
0.035% max
CarbonC
0.05 – 0.15%
Alloy Steel Grade 22 Shim Sheets Mechanical Properties
Minimum Values, Normalised & Tempered
These are the numbers your inspector checks against the mill test certificate.
Tensile Strength
415 – 585 MPa
60-85 ksi, Class 1 per ASTM A387
Yield Strength
205 MPa Min
30 ksi min
Elongation
18% Min
In 200 mm [8 in.] gauge length
Reduction Of Area
40% Min
Transverse test direction
Hardness
150 – 180 HB
Brinell, annealed condition
Modulus Of Elasticity
190 GPa
At room temperature
Max Service Temp
460°C
860°F, mechanical property limit
Higher-Strength Option
Class 2 Available
515-690 MPa, 310 MPa yield min
Physical Properties Of Chrome Molybdenum Gr 22 Alloy Steel Plate
Values an engineer references when preparing a vessel or piping drawing.
Density
7.86 g/cm³
0.284 lb/in³, approx
Melting Range
1430 – 1470°C
2600 – 2680°F approx
Modulus Of Elasticity
190 – 210 GPa
At room temperature
Thermal Conductivity
~40 W/m·K
At room temperature
Coeff. Thermal Expansion
~13 µm/m·K
0-100°C, approx
Specific Heat
~470 J/kg·K
Approx, room temperature
Typical Hardness
150 – 180 HB
Normalized & tempered condition
SA387 Grade 22 Plate Equivalent Grades
One Chemistry, Several Nameplates
SA387 Grade 22 Alloy Steel Plates read the same 2.25Cr-1Mo chemistry across each national standard.
ASTM / UNS
- ASTM A387 Grade 22
- Ordered As SA387 Grade 22 Alloy Steel Plates
- UNS K21590
DIN / EN / Werkstoff
- DIN 10CrMo9-10
- Werkstoff Nr. 1.7380
- Same 2.25Cr-1Mo Basis
JIS / BS
- JIS SCMV4
- BS 1501-622 Grade 515
- Confirmed On Order
Forged & Pipe Equivalents
- ASTM A182 Grade F22 Forgings
- ASTM A335 Grade P22 Pipe
- ASTM A234 Grade WP22 Fittings
Nearby ASTM Grades
- ASTM A387 Grade 11 (Lower Alloy, 1Cr-0.5Mo)
- ASTM A387 Grade 91 (Higher Creep Grade, 9Cr-1Mo)
- We Separately Stock ASTM A387 Grade F5 Alloy Steel Coils — A Distinct 5Cr-0.5Mo Chemistry, Not The Same As Grade 22
Indian Market Note
- No Single-Number IS Equivalent
- Ordered Directly As Gr 22 / K21590
- Compared By Chemistry Basis
Alloy Steel Gr 22 vs Gr 11 Plate
Buyers often compare Gr 22 with Gr 11. We get asked this on almost every enquiry.
ASTM A387 Grade 11 Plate
- 1.00 – 1.50% Cr, 0.45 – 0.65% Mo
- Lower alloy cost than Gr 22
- Suits moderate elevated-temperature duty
- Common in boiler drums and headers
Alloy Steel Gr 22 Plate
- 2.00 – 2.50% Cr, 0.90 – 1.10% Mo
- Higher molybdenum for creep strength
- Preferred for petrochemical reactors
- Better long-term strength retention at heat
Gr 22 Alloy Steel Plate Manufacturing & Heat Treatment Process
From Slab To Certified Plate
How Gr 22 alloy steel becomes a finished, traceable plate at our works.
Melting & Casting
Killed steel melted and cast to slab, heat-checked for chemistry
Hot Rolling
Slab rolled down to specified plate or sheet thickness
Normalizing & Tempering
Heated above upper critical, air cooled, then tempered for toughness
Inspection
Chemistry, tensile, impact and UT cleared on every lot
Dispatch
Cut to size, tagged and shipped with mill test certificate
Alloy Steel Gr 22 Cold Rolled Plates Application Industries
Cr-Mo plate suits welded equipment across every elevated-temperature process line.
Petrochemical Reactors
Boiler Drums & Headers
Heat Exchanger Shells
Refinery Piping Systems
Power Plant Pressure Vessels
Ammonia & Urea Plants
Hydrogen Reformer Components
Hot Process Storage Vessels
ASTM A387 Grade F5 Alloy Steel Coils Thickness Tolerance
General reference thickness tolerance, converted from ASTM A480 inch-based tables.
| Nominal Thickness | Width | Minus Tolerance | Plus Tolerance |
|---|---|---|---|
| 9.5mm (0.375″) | ≤2130mm (84″) | -0.25mm | +1.40mm |
| 12.7mm (0.500″) | ≤2130mm (84″) | -0.25mm | +1.52mm |
| 25.4mm (1.000″) | 2130-3050mm (84-120″) | -0.25mm | +2.03mm |
Alloy Steel Grade 22 Slatting Coil Surface Finish
Enquiries to an Alloy Steel Gr 22 Plate Supplier in India specify finish separately.
Hot Rolled
Mill Scale Finish
Standard for heavy plate above 6mm
Cold Rolled
Smooth Finish
For thin sheet, strip and shim gauge
Polished
Ground / Buffed
On request for cladding and lining use
Pickled & Oiled
Scale-Free
Improves paint and coating adhesion
Alloy Steel Gr 22 Plate Price In India
Driven Pricing, Not A Flat Rate Card
Alloy surcharge and base steel prices move week to week, so our Gr 22 pricing follows the day’s reference rate.
Send a thickness-wise quantity list for per-kg pricing. Get it inside 24 hours. HSN and GST are already worked out.
Stock, MOQ & Dispatch Timeline
From Enquiry To Gate Pass
The real clock on an Alloy Steel Gr 22 Plate order, not a marketing promise.
Day 0 – Enquiry
Mail thickness, class and quantity to our Mumbai desk
Day 1 – Driven Quote
Per-kg rate against the day’s reference price, GST included
Day 2 – Inspection
Chemistry, dimensions and PMI cleared, TPI called if needed
Day 3 – Dispatch
Stock sizes leave with LR copy and full document set
Stock Range
5 – 100mm
Common thickness held in Mumbai
Minimum Order
500 Kg
Per size, trial lots considered
Heavy Plate Lead Time
15 – 20 Days
Above 100mm, indented against order
Export Transit
Nhava Sheva
Air or sea, FOB CFR CIF DDP quoted
Alloy Steel Gr 22 Strips Documentation & Test Certificates
Every order ships with paperwork that matches the physical plate, heat for heat.
Mill Test Certificate
Chemical and mechanical results per EN 10204 3.1
Standard
Third Party Inspection Report
SGS, BV, TUV or Lloyd’s, arranged on request
On Request
Ultrasonic Testing (UT) Report
Internal soundness record for heavy Gr 22 plate
On Request
Certificate Of Origin
Chamber-attested, needed for most export shipments
Export
Packing List & Invoice
Heat-number traceable listing for every crate or bundle
Standard
SA387 Grade 22 Alloy Steel Plates Testing & Inspection
A serious Alloy Steel Gr 22 Plate Supplier tests every batch before dispatch.
Chemical / PMI Analysis
Spectro reading against Grade 22 heat composition limits
Hardness Test
Brinell hardness recorded lot-wise, typically 150-180 HB
Tensile & Yield Test
Tensile, yield and elongation tested per ASTM A387 Class 1/2
Charpy Impact Test
Notch toughness confirmed per project temperature requirement
Dimensional Inspection
Thickness, flatness and squareness checked against ASTM A480
Ultrasonic Testing (UT)
Internal soundness checked on heavy-gauge Gr 22 plate
Alloy Steel Gr 22 Plate Frequently Asked Questions
What is SA 387 GR 22 material used for?
Welded pressure vessels, boilers and reactors operating at elevated temperature in petrochemical service.
What steel grade is equivalent to ASTM A387 Grade 22?
DIN 10CrMo9-10, JIS SCMV4 and BS 1501-622 Grade 515 share the same chemistry.
How much does a 1″ steel plate cost?
Depends on class, testing and alloy surcharge; send specs for a same-day quote.
What is the difference between Class 1 and Class 2?
Class 2 has a higher tensile and yield band; chemistry limits stay identical.
What is the UNS number for Alloy Steel Gr 22 Plate?
UNS K21590, commonly known as 2.25Cr-1Mo alloy steel.
6 Reasons to choose Ganpat Industrial Corporation
- Distributor of Heat Exchanger parts and Alloys for High Temperature applications.
- Stockholder and importer of Ferrous and non ferrous metals.
- Wide stock of prime quality austenitic and Ferritic Stainless Steel for Extreme pressure environment.
- Marine grade steel at lowest price in Mumbai.
- Compare Price per KG in India and China.
- Offer Resale price to local suppliers, traders and wholesalers in UAE, Saudi Arabia, Egypt, and USA