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Gangsteel Material Solution
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1. The technology conditions apply to 8 ~ 50 mm thickness coke tower with 15 CrMoR (H) of steel production and inspection.
2. Technical requirements
2.1 chemical composition
The chemical composition of steel (melting analysis) should be in accordance with table 1 (Wt %)
Chart 1
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
0.12~0.18 |
0.15~0.40 |
0.40~0.70 |
≤0.012 |
≤0.010 |
0.80~1.20 |
0.45~0.60 |
≤ 0.20 |
≤ 0.20 |
Note: melting analysis according to each furnace (pot), sampling, finished product should be according to the analysis of each steel rolling to take a sample, finished product analysis deviation should be allowed to meet the provisions of GB222, and requires P≤0.015%,S≤0.012%,Cu≤0.20%,
Ni≤0.25%。
2.2 delivery status: the steel plate to normalizing + tempering state delivery
2.3 the after welding steel by simulating the mechanical properties of the heat treatment should comply with the provisions of the table 2.
Chart 2
σs MPa |
σb MPa |
δ5 % |
ψ % |
Room temperature horizontalAKU J |
0℃transverseAKV J |
cold bend 180° b=2a |
≥295 |
450~590 |
≥19 |
≥45 |
average≥80 single value≥60 |
average≥60 single value≥45 |
D=2a |
we supply high-quality A516 Gr 70 steel plate for pressure vessel applications and other standards like ASTM A2
EN10028-2 P355GH for High-Strength Low-Alloy Columbium-Vanadium Structural Steel EN10025-2 S355J2 Structural St
We export A240 304L Stainless Coil 2B, NO.1 No.4 surface, the thickness 0.1mm to 3mm, 3mm to 22mm, Mother mill
ASTM A516 GR 70 equivalent materials is such as ASME SA516 GR 70, EN 10028 P355GH, and BS1501 224-490 A & B, sh