JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 20Ton per week |
| Delivery Time | 5 - 12 days based on the quantity |
| Packaging Details | standard packing for export |
| Products | SA387 GR12 CL2 |
| Thickness | 3.0 - 200.0mm |
| Width | 1000-2200mm |
| Length | 2000-12000mm |
| Standard | ASTM EN GB |
| Other Material | Carbon Steel, Alloy Steel, Stainless Steel |
| Brand | BAOSTEEL XINYU XINGCHENG HBIS |
| Service | Cutting |
| Brand Name | BAOSTEEL BENSTEEL HBIS XINGCHENG |
| Model Number | SA387 GR12 CL2 |
| Certification | ISO 9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 20Ton per week |
| Delivery Time | 5 - 12 days based on the quantity | Packaging Details | standard packing for export |
| Products | SA387 GR12 CL2 | Thickness | 3.0 - 200.0mm |
| Width | 1000-2200mm | Length | 2000-12000mm |
| Standard | ASTM EN GB | Other Material | Carbon Steel, Alloy Steel, Stainless Steel |
| Brand | BAOSTEEL XINYU XINGCHENG HBIS | Service | Cutting |
| Brand Name | BAOSTEEL BENSTEEL HBIS XINGCHENG | Model Number | SA387 GR12 CL2 |
| Certification | ISO 9001 | Place of Origin | China |
| High Light | High Pressure Vessel Steel Plate ，ASME SA387 Gr.12 Steel Plate ，Boiler Construction Steel Plate | ||
ASME SA387 Gr.12 Cl.2 Alloy Steel Plates Premium Strength for High Pressure Vessel and Boiler Construction
Products Specification
| Product Name | SA387 GR12 CL2 Steel Plate |
| Thickness | 3mm~300mm,2mm-100mm is common thickness,also can customize |
| Width | 1000~3000mm,common width is 1250mm,1500mm,2000mm,2200mm |
| Length | 1000~12000mm,can as your request cut |
| Surface | Clean,finished, blasting and painting or as your request |
| Delivery | Hot Rolled, Controlled Rolling,Normalizing,Annealing, Tempering,Quanching, Q+T |
| Packing | Steel Strapping,fixing in the Container,can customize |
| Thickness tolerance | ±0.3mm |
| Application | It is mainly used to make structural parts such as car girder, beam, transmission shaft and car chassis parts, which can reduce the weight of the parts. |
For High-Temperature Pressure Vessels & Hydrogen Service
SA387 Gr12 Cl2 is a low-alloy chromium-molybdenum steel plate standardized under ASTM/ASME SA387, designed for welded pressure vessels operating at elevated temperatures (up to 538°C / 1000°F). Supplied in Normalized and Tempered (N+T) condition (Class 2), it delivers superior creep strength, hydrogen resistance, and weldability for critical petrochemical, power, and oil/gas applications.
| Element | Min | Max | Key Role |
|---|---|---|---|
| Carbon (C) | – | 0.15 | Weldability, ductility |
| Manganese (Mn) | 0.30 | 0.60 | Deoxidation, strength |
| Phosphorus (P) | – | 0.025 | Purity control (impurity) |
| Sulfur (S) | – | 0.025 | Purity control (impurity) |
| Silicon (Si) | 0.15 | 0.40 | Deoxidizer, strength |
| Chromium (Cr) | 0.80 | 1.25 | Oxidation/hydrogen resistance |
| Molybdenum (Mo) | 0.45 | 0.65 | High-temp strength, carbide stability |
| Residuals (Cu, Ni, etc.) | – | ≤0.50 | Trace control |
Note: Strict control of P+S ≤ 0.035% minimizes hot cracking.
| Property | Value (Typical) | Test Standard |
|---|---|---|
| Tensile Strength (Rm) | 515–690 MPa (75–100 ksi) | ASTM A370 |
| Yield Strength (Rp0.2) | ≥310 MPa (≥45 ksi) | ASTM A370 |
| Elongation (A5) | ≥22% (in 50 mm) | ASTM A370 |
| Hardness (Brinell HBW) | 163–220 | ASTM E10 |
| Impact Toughness | ||
| - Charpy V-Notch (min) | 27 J @ -30°C (-22°F) | ASTM A20 / EN 10045 |
| Elevated Temp Strength | ||
| - 550°C (1022°F) Design Stress | ~70 MPa (Ref: ASME II-D) | ASME Section II |
Primary Standard: ASTM SA387 / ASME SA387
Delivery Condition: Class 2 (Normalized + Tempered)
Testing Compliance:
Tensile/Yield/Elongation: ASTM A370
Impact Test: ASTM A20 / ASTM E23
Ultrasonic Testing: ASTM A435 (Optional Level B)
Certificates:
EN 10204 3.1/3.2 Mill Test Report (MTR)
NACE MR0175 / ISO 15156 (Sour Service)
PED 2014/68/EU Annex I (CE Mark)
Material Traceability (Heat No., Melt Analysis)
| Parameter | Range | Tolerance |
|---|---|---|
| Thickness | 6 mm – 250 mm | ASTM A20/A20M |
| Width | 1500–4500 mm | EN 10029 Class N |
| Length | 6000–18000 mm | EN 10029 Class N |
| Form | Hot-rolled plate | |
| Surface Finish | Blasted (Sa 2.5) or mill finish | SSPC-SP 6 / ISO 8501-1 |
| Country/Region | Equivalent Standard | Grade |
|---|---|---|
| China | GB/T 713.2 | 15CrMoR |
| EU | EN 10028-2 | 13CrMo4-5 (1.7335) |
| Japan | JIS G 4109 | SCMV2 |
| Germany | DIN 17155 | 15Mo3 (Close) |
| Russia | GOST 5520 | 15ХМ |
| ISO | ISO 9328-2 | P265GH (Partial) |
Petrochemical:
Hydrocracker reactors, hydrogenation vessels
Catalytic reforming units, amine contactors
Power Generation:
Boiler drums (≤550°C), steam headers
Superheater supports, turbine casings
Oil & Gas:
Sour gas separators (NACE-compliant)
LNG heat exchanger shells
General Industry:
High-temperature storage tanks
Process piping & heat recovery systems
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
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