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GB/T 3531 16MnDR steel plate, also written as 16MnDR pressure vessel steel plate, GB3531 16MnDR, 16MnDR low-temperature steel plate, GB/T 713.3 16MnDR, is a low-temperature C-Mn pressure vessel plate under GB/T 3531 (Steel plates for low temperature pressure vessels; successor coverage in GB/T 713.3). Typical Charpy is -40°C (thicker bands may use -30°C), with yield about 315 MPa for thin plate down to ~265 MPa at 100–120 mm. Gangsteel (HENAN GANG IRON AND STEEL) produces and exports 16MnDR plates cut to size with EN 10204 3.1/3.2 MTCs for LPG, ethane, ammonia and other low-temperature pressure vessels.
Data source: Per GB/T 3531-2014 (Steel plates for low temperature pressure vessels; buyers still search “GB/T 3531” / “GB3531”). The 2023 succession splits low-temp coverage into GB/T 713.3 (low-alloy low-temp) and GB/T 713.4 (nickel alloy low-temp). Official mill/certificate grade is 16MnDR. Verify the contracted edition and purchase-order supplements before ordering.
| Element | C | Si | Mn | Ni | P | S |
|---|---|---|---|---|---|---|
| 16MnDR, % | ≤0.20 | 0.15-0.50 | 1.20-1.60 | ≤0.40 | ≤0.020 | ≤0.010 |
| Element | Alt | V | Nb | Mo | Cu | Cr |
|---|---|---|---|---|---|---|
| 16MnDR, % | ≥0.020 | — | — | — | residual | residual |
Heat analysis per GB/T 3531-2014. Residual elements and Alt rules follow the contracted edition; confirm GB/T 713.3 limits when that edition is specified.
| Thickness, mm | Yield ReL, min | Tensile Rm | Elongation A, min | Impact KV2 |
|---|---|---|---|---|
| 6–16 | 315 | 490-620 | 21 | -40°C / 47 J |
| >16–36 | 295 | 470-600 | 21 | -40°C / 47 J |
| >36–60 | 285 | 460-590 | 21 | -40°C / 47 J |
| >60–100 | 275 | 450-580 | 21 | -30°C / 47 J |
| >100–120 | 265 | 440-570 | 21 | -30°C / 47 J |
Values are typical GB/T 3531-2014 minima / bands. Always confirm the contracted edition (GB/T 3531 or GB/T 713.3) and PO supplements.
Normalized, or normalized + tempered when specified. UT to NB/T 47013.3 by agreement. State Charpy temperature and energy on the PO.
Gangsteel supplies about 6–120 mm (5–120 mm under GB/T 713.3 succession). Width/length cut to order.
Low-temperature pressure vessels and storage equipment in petrochemical, LPG, and refrigerated service typically down to about -40°C design temperature, subject to code and impact qualification.
| Standard | Comparable grade (approximate) |
|---|---|
| GB/T 3531 | 16MnDR |
| GB/T 713.2 | Q345R (ambient; not a substitute for DR impact) |
| ASTM | A516 family (approx. strength only) |
| Related GB/T 3531 | 15MnNiDR | 15MnNiNbDR | 09MnNiDR | 08Ni3DR | 06Ni9DR |
| Related GB/T 713 | GB/T 713 hub (713.2 ambient/elevated) |
Equivalents are engineering references only. Dual certification requires the stricter combined limits on the PO and MTC.
It is a C-Mn low-temperature pressure vessel steel under GB/T 3531 (Steel plates for low temperature pressure vessels). a low-temperature C-Mn pressure vessel plate under GB/T 3531 (Steel plates for low temperature pressure vessels; successor coverage in GB/T 713.3). Typical Charpy is -40°C (thicker bands may use -30°C), with yield about 315 MPa for thin plate down to ~265 MPa at 100–120 mm. Gangsteel lists the official mill/certificate grade as 16MnDR. See the full GB/T 3531 16MnDR page for chemistry and mechanical tables.
Minimum yield is 315 MPa for 6–16 mm, stepping down with thickness to 265 MPa at 100–120 mm. Typical tensile bands are shown in the mechanical properties table on this page; confirm the contracted GB/T 3531 or GB/T 713.3/713.4 edition before design.
Charpy KV2 is typically -40°C / ≥47 J for thinner 16MnDR; thicker bands often use -30°C. Always state the required Charpy temperature and energy on the purchase order.
Normalized, or normalized + tempered when specified. UT to NB/T 47013.3 by agreement. State Charpy temperature and energy on the PO.
All sit in the GB/T 3531 low-temperature vessel family (commercial buyers still search GB3531). Sister grades: 15MnNiDR / 15MnNiNbDR / 09MnNiDR / 08Ni3DR / 06Ni9DR. Hub: GB/T 3531 Steel Plate. Ambient/elevated GB carbon/alloy grades are under GB/T 713 / GB/T 713.2.
No. 16MnDR is a low-temperature DR grade with mandatory cold Charpy; Q345R and ASTM A516 are ambient/elevated vessel grades. Dual certification needs the stricter combined limits on the PO and MTC.
EN 10204 3.1 as standard; 3.2 with third-party inspection when ordered. MTC lists heat analysis, mechanical tests, delivery condition and any optional UT / Z / cryogenic impact results.
Gangsteel supplies about 6–120 mm (5–120 mm under GB/T 713.3 succession). Width/length cut to order. Browse the GB/T 3531 hub for the full grade list.
GB/T 3531 Steel Plate | 16MnDR | 09MnNiDR | 06Ni9DR | GB/T 713 | ASTM A203 | ASTM A353 | ASTM A553 Type I | Pressure Vessel Steel Plate
