mild steel plate

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mild steel plate

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Product Description

Product name	Carbon steel plate
Shape	Sheet/Board
Standard	ASTM、GB、JIS、EN、DIN、GB711-88、YB474-64
Technology	Hot rolling, cold rolling
Type	Low carbon steel, medium carbon steel, high carbon steel
Width	450-4800mm
Length	3000-25000mm
Thickness	3-200mm
Characteristics	High strength, good toughness and easy to process
Application	Bridges, boilers, automobile manufacturing, pressure vessels, etc

Chemical Composition and Mechanical Properties of Mild Steel Plates

Grade / Standard	Carbon (C)	Manganese (Mn)	Phosphorus (P)	Sulfur (S)	Yield Strength (MPa, min)	Tensile Strength (MPa)
ASTM A36	0.26 max	1.60 max	0.040 max	0.050 max	250	400 - 550

EN 10025-2 S235JR	0.17 max	1.40 max	0.045 max	0.045 max	235	360 - 510
EN 10025-2 S275JR	0.21 max	1.50 max	0.045 max	0.045 max	275	410 - 560
JIS G3101 SS400	0.20 max	0.70max	0.050 max	0.050 max	215-245	400 - 510


GB/T 700 Q235B	0.20 max	Deox: 1.40 max	0.045 max	0.045 max	195-235	370 - 500

Carbon Content Classification	Quality & Application Classification	Hot-Rolled State	Cold-Rolled State
Low-Carbon Steel (C ≤ 0.25%) Characteristics: Excellent plasticity, toughness, and weldability	Ordinary Structural/Commercial Grade (Primarily guarantees mechanical properties, lowest cost)	• ASTM A36 • SS400 (JIS) • S235JR (EN) • Q235A/B (GB)	• DC01 (EN) •SPCC (GB/JIS) • CR2/CR3 (ASTM)





	Quality Structural/Drawing Grade (Strict control of both composition & properties, good formability)	• A572 Gr.50 (ASTM) • SM490A (JIS) • S355JR (EN) • Q355B/C/D (GB)	• DC03, DC04 (EN) • SPCD (GB/JIS) • DQ, DDSK (ASTM)





	Advanced Forming/Deep Drawing Grade (IF Steel) (Ultra-deep drawing, non-aging)	Rarely used directly as sheet. Typically serves as the hot-rolled coil feedstock for cold-rolled deep-drawing steels.	• DC05, DC06 (EN) • SPCE, SPCF (JIS/GB) • EDDQ/S-EDDQ (Generic)




	High-Strength Low-Alloy (HSLA) / Advanced High-Strength Steel (AHSS) (High strength, balances formability & weldability)	• A572 Gr.60/65 (ASTM) • S420MC/S460MC (EN) • Q390/Q420/Q460 (GB)	• HC340/590DP (GB, Dual Phase steel) • DP600, TRIP800 (Generic) • HCT600X (EN)





Medium-Carbon Steel (0.25% < C ≤ 0.60%) Characteristics: Good strength-toughness combination achievable via heat treatment	Machinery Manufacturing Steel (Used for core load-bearing parts after quenching & tempering)	• 1045 (SAE) • S45C (JIS, hot-rolled material) • 45# (GB, hot-rolled plate/flat bar)	• 1045 (SAE, cold-rolled strip) • S45C (JIS, cold-rolled precision material) • 45# (GB, cold-rolled precision stock)





High-Carbon Steel (C > 0.60%) Characteristics: High hardness, high wear resistance, high brittleness	Tool & Special Purpose Steel (Belongs to special steel category)	• 65Mn (GB, spring steel flat bar) • 1095 (SAE) • T8, T10 (GB, Tool Steel)	Very rare. May exist as cold-rolled strip or thin sheet for making high-precision spring strips, blades, or special wear-resistant shims.

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