Product Uses and Introduction

This series of products is made of wear-resistant steel, and the choice of material depends 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.

Steel mill customized business email: customize@cehesteel.com

Scope of supply

Grade Delivery status Thickness (mm) Implementation Standards
NM300 Q+T 6-50 GB/T24186
NM300D、NM300E Q+T 6-50 GB/T24186
NM360 Q+T 6-100 GB/T24186
NM360D Q+T 6-80 GB/T24186
NM360E Q+T 6-50 GB/T24186
NM400 Q+T 6-100 GB/T24186
NM400D Q+T 6-100 GB/T24186
NM400E Q+T 6-50 GB/T24186
NM450 Q+T 6-50 GB/T24186
NM450D、NM450E Q+T 6-50 GB/T24186
NM500 Q+T 6-70 GB/T24186
NM500D Q+T 6-50 GB/T24186
V400D、VRN400D Q+T 6-100 Q/XGJX513-2024
V500D、VRN500D Q+T 6-50 Q/XGJX513-2024
AR400、AR400E Q+T 6-50 Q/XGJX591-2023
AR400F Q+T 6-50 Q/XGJX637-2024
TWP400D Q+T 6-100 Q/XGJX629-2024
TWP450D Q+T 6-50 Q/XGJX629-2024
TWP500D Q+T 6-50 Q/XGJX629-2024

chemical composition

Grade Chemical composition (mass fraction) / %
C Si Mn P S Cr Ni Mo Ti B Ais
Not greater than scope Not less than
NM300 0.23 0.7 1.6 0.025 0.015 0.7 0.5 0.4 0.05 0.0005-0.006 0.01
NM360 0.25 0.7 1.6 0.025 0.015 0.8 0.5 0.5 0.05 0.0005-0.006 0.01
NM400 0.3 0.7 1.6 0.025 0.01 1 0.7 0.5 0.05 0.0005-0.006 0.01
NM450 0.35 0.7 1.7 0.025 0.01 1.1 0.8 0.55 0.05 0.0005-0.006 0.01
NM500 0.38 0.7 1.7 0.02 0.01 1.2 1 0.65 0.05 0.0005-0.006 0.01
NM550 0.38 0.7 1.7 0.02 0.01 1.2 1 0.7 0.05 0.0005-0.006 0.01
NM600 0.45 0.7 1.9 0.02 0.01 1.5 1 0.8 0.05 0.0005-0.006 0.01
ᵃ: For grades NM400 and below, the Si and Mn contents can be increased to 2.00% and 2.20% respectively, with the alloying element content determined by the supplier.

Mechanical properties

Grade Thickness/mm Tensile strength ᵃRm/MPa Elongation after fracture ᵃA50mm/% Impact absorption energy at -20℃ (longitudinal) ᵃ·kV²/J Surface Brinell hardness HBW
NM300 ≤80 ≥1 000 ≥14 ≥24 270-330
NM360 ≤80 ≥1 100 ≥12 ≥24 330-390
NM400 ≤80 ≥1 200 ≥10 ≥24 370-430
NM450 ≤80 ≥1 250 ≥7 ≥24 420-480
NM500 ≤70 - - - ≥470
NM550 ≤70 - - - ≥530
NM600 ≤60 - - - ≥570
ᵃ: Tensile strength, elongation, and impact energy are special performance requirements. If the user does not specify them in the contract, only Brinell hardness is guaranteed.