Product Uses and Introduction

This series of products is weathering steel, and the material selection needs to be determined based on the specific circumstances. Below, we will introduce the thickness range, delivery condition, and applicable standards for each grade that we can provide. We hope this information is helpful. If you have any questions about the products or need a quote, please contact us via email. Because some grades can be categorized into multiple types according to their applications, this may cause some inconvenience in your search, for which we sincerely apologize. We also welcome any suggestions you may have. Thank you very much!

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If conditions permit, we can also provide steel mill customization services, where the thickness, width, and length can all be made to your needs, just like a tailor making clothes for you, implementing personalized orders.

Customized business email for steel mills： customize@cehesteel.com

Scope of supply

Grade Executive Standard Product specification（mm） Delivery State Product Features Use
SPA-H JIS G3125-2015 2.3～16.0*700～1150
  2.5～16.0*700～1260
  2.75～16.0*1100～1300
  3.25～16.0*1300～1400
  3.75～16.0*1400～1500		 Hot rolling or controlled rolling It has good corrosion resistance and can be used as container panels. Used for manufacturing container panels
05CuPCrNi 0.5～3.0*650～1600 Cold Rolling Heat Exchangers, Air Preheaters, etc.
09CuPCrNi 0.5～3.0*650～1600

Chemical Composition

Grade C Si Mn P S Cu Ni Cr Nb
SPA-H ≤0.12 0.25～0.75 ≤0.60 0.07～0.15 ≤0.035 0.25～0.55 ≤0.65 — —
05CuPCrNi ≤0.09 0.25～0.5 0.2～0.5 0.07～0.16 ≤0.036 0.25～0.56 0.12～065 0.3～1.25 —
09CuPCrNi ≤0.12 0.25～0.75 0.2～0.5 0.07～0.15 ≤0.04 0.25～0.55 ≤0.65 0.3～1.25 —
Grade C Si Mn P S Cu Ni Cr Other elements
Q265GNH ≤0.12 0.10-0.40 0.20-0.50 0.07-0.12 ≤0.020 0.20-0.45 0.25-0.50ᵉ 0.30-0.65 a,b
Q295GNH ≤0.12 0.10-0.40 0.20-0.50 0.07-0.12 ≤0.020 0.25-0.45 0.25-0.50ᵉ 0.30-0.65 a,b
Q310GNH ≤0.12 0.25-0.75 0.20-0.50 0.07-0.12 ≤0.020 0.20-0.50 ≤0.65 0.30-1.25 a,b
Q355GNH ≤0.12 0.20-0.75 ≤1.0 0.07-0.15 ≤0.020 0.25-0.55 ≤0.65 0.30-1.25 a,b
Q235NH ≤0.13ᶠ 0.10-0.40 0.20-0.60 ≤0.030 ≤0.030 0.25-0.55 ≤0.65 0.40-0.80 a,b
Q295NH ≤0.15 0.10-0.50 0.30-1.00 ≤0.030 ≤0.030 0.25-0.55 ≤0.65 0.40-0.80 a,b
Q355NH ≤0.16 ≤0.50 0.50-1.50 ≤0.030 ≤0.030 0.25-0.55 ≤0.65 0.40-0.80 a,b
Q415NH ≤0.12 ≤0.65 ≤1.10 ≤0.025 ≤0.030ᵈ 0.20-0.55 0.12-0.65ᵉ 0.30-1.25 a,b,c
Q460NH ≤0.12 ≤0.65 ≤1.50 ≤0.025 ≤0.030ᵈ 0.20-0.55 0.12-0.65ᵉ 0.30-1.25 a,b,c
Q500NH ≤0.12 ≤0.65 ≤2.0 ≤0.025 ≤0.030ᵈ 0.20-0.55 0.12-0.65ᵉ 0.30-1.25 a,b,c
Q550NH ≤0.16 ≤0.65 ≤2.0 ≤0.025 ≤0.030ᵈ 0.20-0.55 0.12-0.65ᵉ 0.30-1.25 a,b,c
a:To improve the properties of steel, one or more trace alloying elements may be added: Nb 0.015%-0.060%, V 0.02%-0.12%, Ti 0.02-0.10%, Alt ≥ 0.020%. When the above elements are used in combination, at least one element should be ensured to meet the lower limit of the above chemical composition.
b：The following alloying elements can be added：Mo≤0.30%，Zr≤0.15%
c：The total amount of the three alloying elements Nb, V, and Ti added should not exceed 0.22%.
e：Through negotiation between the supply and demand parties, a lower limit for Ni content may not be required.
f：Through negotiation between the supply and demand parties, the content of C may not exceed 0.15%.

Mechanical Properties

Grade Thickness Yield Strength Tensile Strength Elongation Impact power  J
(mm) (MPa) (MPa) % J
SPA-H ≤6 ≥355 ≥490 ≥22 ≥27（-10℃）
SPA-H ＞6 ≥355 ≥490 ≥15 ≥27（-10℃）
05CuPCrNi ≤4 ≥310 ≥440 ≥26 ≥47（20℃）
09CuPCrNi ≤6 ≥343 ≥480 ≥22
09CuPCrNi ＞6 ≥343 ≥480 ≥22
09CuPCrNi ≤2.5 ≥314 ≥451 ≥26
09CuPCrNi 12～16
Grade Tensile Testᵃ 180°Bending test mandrel diameter
Lower yield strength ReL/(N/mm²）≥ Tensile Strength Rm/(N/mm²） Elongation after fractureA/% ≥
≤16 ＞16-40 ＞40-60 ＞60 ≤16 ＞16-40 ＞40-60 ＞60 ≤6 ＞6-16 ＞16
Q235NH 235 225 215 215 360-510 25 25 24 23 a a 2a
Q295NH 295 285 275 255 430-560 24 24 23 22 a 2a 3a
Q295GNH 295 285 - - 430-560 24 24 - - a 2a 3a
Q355NH 355 345 335 325 490-630 22 22 21 20 a 2a 3a
Q355GNH 355 345 - - 490-630 22 22 - - a 2a 3a
Q415NH 415 405 395 - 520-680 22 22 20 - a 2a 3a
Q460NH 460 450 440 - 570-730 20 20 19 - a 2a 3a
Q500NH 500 490 480 - 600-760 18 16 15 - a 2a 3a
Q550NH 550 540 530 - 620-780 16 16 15 - a 2a 3a
Q265GNH 265 - - - ≥410 27 - - - a - -
Q310GNH 310 - - - ≥450 26 - - - a - -
Note: 'a' represents the thickness of the steel.
ᵃ：When the yielding phenomenon is not obvious, Rp0.2 can be used.