A387 Pressure Vessel Steel Plate
Classification :
PRODUCT DETAILS
Keywords: Juxin Metal
A387 Pressure Vessel Steel Plate Description
ASTM A387 Boiler vessel plates are chrome-molybdenum alloy steel plates suitable for welding boilers and high temperature pressure vessels. ASTM A387 boiler container plate is divided into grade 5, grade 9, grade 11, grade 12, grade 22, grade 91 and other grades according to the alloy elements contained. Except for grades 21L, 22L, 91 and 911, each grade of ASTM A387 boiler vessel plate has two tensile strength categories according to its heat treatment: Class 1 and Class 2.
Product Parameters
Product Name | A387 Pressure Vessel Steel Plate |
Production Process | Hot Rolling, Cold Rolling |
Material Standards | AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc. |
Width | 100mm-3000mm |
Length | 1m-12m, or Customized Size |
Thickness | 0.1mm-400mm |
Delivery Conditions | Rolling, Annealing, Quenching, Tempered or Standard |
Surface Process | Ordinary, Wire Drawing, Laminated Film |
Chemical Composition
A387 | UNS | C | Mn | P | S | Si | Cr | Mo |
Level 5 | S50200 | ≤ 0.15 | 0.25-0.66 | 0.025 | 0.025 | ≤ 0.55 | 3.90-6.10 | 0.40-0.70 |
Level 9 | K90941 | ≤ 0.15 | 0.25-0.66 | 0.025 | 0.025 | ≤ 1.05 | 7.90-10.10 | 0.85-1.15 |
Level 11 | K11789 | 0.04-0.17 | 0.35-0.73 | 0.025 | 0.025 | 0.44-0.86 | 0.94-1.56 | 0.40-0.70 |
Level 12 | K11757 | 0.04-0.17 | 0.35-0.73 | 0.025 | 0.025 | 0.13-0.45 | 0.74-1.21 | 0.40-0.65 |
Level 22 | K21590 | 0.04-0.15 | 0.25-0.66 | 0.025 | 0.025 | ≤ 0.50 | 1.88-2.62 | 0.85-1.15 |
Class 22L | K21590 | ≤ 0.12 | 0.25-0.66 | 0.025 | 0.025 | ≤ 0.50 | 1.88-2.62 | 0.85-1.15 |
Class 91 | K90901 | 0.06-0.15 | 0.25-0.66 | 0.025 | 0.012 | 0.18-0.56 | 7.90-9.60 | 0.80-1.10 |
Mechanical Properties
A387 | Category | Tensile Strength Mpa | Yield Strength Mpa | Elongation Gauge length 2in.[50mm]% |
Level 5
| Section Category 1 | 415-585 | 205 | 18 |
Section Category 2 | 515-690 | 310 | 18 | |
Level 9
| Section Category 1 | 415-585 | 205 | 18 |
Section Category 2 | 515-690 | 310 | 18 | |
Level 11
| Section Category 1 | 415-585 | 240 | 22 |
Section Category 2 | 485-620 | 310 | 22 | |
Level 12
| Section Category 1 | 380-550 | 230 | 22 |
Section Category 2 | 450-585 | 275 | 22 | |
Level 22
| Section Category 1 | 415-585 | 205 | 18 |
Section Category 2 | 515-690 | 310 | 18 |
Physical Performance
Physical Performance | Metric | Imperial |
Density | 7.7-8.03 g/cm3 | 7.7-8.03 g/cm3 |
Scope of Application
The molybdenum composition in ASTM A387 boiler vessel plate can improve its tensile strength at high temperature, and make it have higher oxidation and corrosion resistance by increasing the lattice strain. ASTM A387 Boiler Container Plates are ideal for use in heat-resistant pressure vessels and sour gas environments.
Equivalent Material
American StandardASTM | European StandardASME | German StandardEN 10028 | English standardDIN | Legal standardBS | Russian standardAFNOR 36206 |
A387 5 | SA387 5 | X12CrMo5 | - | - | - |
A387 9 | SA387 9 | - | - | - | - |
A387 11 | SA387 11 | 13CrMoSi5-5 | - | 621B | - |
A387 12 | SA387 12 | 13CrMo4-5 | 13CrMo44 | 620B | 15CD2.05 |
A387 22 | SA387 22 | 10/11CrMo9-10 | 10CrMo9-10 | 622-515B | 12CD9-10 |
A387 91 | SA387 91 | 10CrMoVNb9-1 | - | -- | - |

Packing and delivery
The main export products include steel products such as steel plates/coils/tubes/rods. The management has been engaged in the steel industry for more than 20 years, the management team is experienced and has established solid business relationships with customers and factories. Lingyue's annual sales volume exceeds 10 million tons, and it provides customized processing services for a variety of products.

CUSTOMER VISIT
The products are exported to more than 100 countries and regions around the world, including Europe, America, and Asia, and are well received by customers at home and abroad.
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FAQ
Will you can accept the customized and OEM products?
A:Yes,we can do the production based on your drawings and with your logo,also because we have very strong design and development team,so the feedback is very good for customized product.
What is your payment terms?
A:Commonly two payment term for new customers (1)30%T/T as deposit,70% balance against B/L copy. (2)100% Irrevocable L/C at sight. If you need other terms, please feel free to contact us too, we will try our best.
How about the samples? Is it free to extra fees?
A:Samples are free, you need to pay for shipping.
How long is your delivery time?
A:Our daily inventory is more than 8000 tons, so far common products size,just need 5 days from stocks; if the special size from new production, delivery 7-15 days.
How to control and guarantee your shipment quality?
A:(1)All our factories are ISO 9001 certified facility; (2)World famous origin mills as TISCO, Bao steel; (3)Ex factory inspection by our own laboratory; (4)SGS/BV Third party inspection before delivery.
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