Q355D material introduction

Q355D has high yield strength and toughness. Q355D also has the characteristics of wear resistance and easy welding and cutting. It is often used for cutting large parts or welding structural parts.

Q355D steel delivery status:
Q355D is usually delivered in hot rolled, normalized, annealed, TMCP, normalized rolled and tempered states.

Q355D mechanical properties:
Yield strength:
≤16mm: ≥345;
16—40mm: ≥335;
40—63mm: ≥325;
63—80mm: ≥315;
80—100mm: ≥305;
100—150mm: ≥285;
150—200mm: ≥275;
200—250: ≥275;
250—400: ≥265.
Tensile strength: 450-630.
Elongation: ≥21.
Impact test: -20℃: ≥34.

Chemical composition of Q355D %:

C	Si	Mn	P	S	Nb	V
≤0.18	≤0.50	≤1.70	≤0.030	≤0.025	≤0.07	≤0.15
Ti	Cr	Ni	Cu	N	Mo	Als
≤0.20	≤0.30	≤0.50	≤0.30	≤0.012	≤0.10	≥0.015

Q355D steel plate application:
Q355D steel plate itself has good performance and stable performance. It is often used for cutting large parts and components, and is widely used in construction machinery, metallurgical machinery, mining machinery, non-special wear parts, bridge structures, large steel structure welding, high-rise buildings, marine machinery, lifting equipment, etc.

Q355D steel flaw detection:
Q355D flaw detection standard GB/T47031 standard flaw detection level and flaw detection, secondary flaw detection, tertiary flaw detection.

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