Hot rolled steel plate

What is hot-rolled steel?

Hot-rolled steel will be rolled and coiled at a temperature greater than its crystallization temperature. And usually above 538 degrees Celsius (1000 degrees Fahrenheit).

The hot rolled steel is then allowed to cool naturally at room temperature. After cooling, the steel becomes shrinking and its surface becomes rough.

However, this surface can be easily removed by grinding, descaling, or sandblasting.

Specifications of hot rolled steel plate:

• Size: 1.2m – 1.5m
• Thickness: 1.2mm – 14mm
• Steel grade: SAE, SS400, SPHC, SPHT

Hot-rolled steel plate standards

At Tiger Steel, hot rolled steel sheet is manufactured from 4 main standards:

ANSI standard, steel grade 1006

Equivalent steel grades: UNS G10060, ASME 5041, ASTM A29, ASTM A510, ASTM A545, FED QQ-W-461, MIL SPEC MIL-S-11310 (CS1006), SAE J403, SAE J412, SAE J414.

Specifications for steel grades:

Component	Concentrations %
C	Max 0.80
Fe	99.43-99.75
Mn	0.25-0.40
P	Max 0.040
S	Max 0.050
Physical properties	Metric system	pounds	Annotation	Cold weasel	Hot forging	Conductor type
Proportion	7.872 g/cc	0.2844 lb/in³
Mechanical properties	Metric system	pounds	Annotation	Cold weasel	Hot forging	Conductor type
Brinell hardness	95	95
Knoop hardness	113	113	Conversion from Brinell hardness.
hardness Rockwell B	55	55	Conversion from Brinell hardness.
Vickers hardness	98	98	Conversion from Brinell hardness.
Tensile stress	330 MPa	47900 psi
yield stress	285 MPa	41300 psi
Elongation	20%	20%	In 50 mm
Area reduction	45%	45%
Elasticity	206 GPa	29900 ksi
Weight	163 GPa	23600 ksi	The estimated value of elasticity
Poisson’s coefficient	0.29	0.29	The coefficient represents steel
Machinability	50.00%	50.00%	Based on AISI 1212 steel. 100% machinability. The machinability of group I rods, rods, and wire products can be improved by cold drawing.
Power cut	80.0 GPa	11600 ksi	The estimated value of elasticity
Electrical conductivity	Metric system	pounds	Annotation	Cold weasel	Hot forging	Conductor type
Resistivity	0.0000174 ohm-cm	0.0000174 ohm-cm
Thermal properties	Metric system	pounds	Annotation	Cold weasel	Hot forging	Conductor type
Linear CTE	12.6 µm/m-°C	7.00 µin/in-°F
	@Temperature 0.000 – 100 °C	@Nhiệt độ 32.0 – 212 °F
	13.5 µm/m-°C	7.50 µin/in-°F
	@Temperature 0.000 – 300 °C	@Temperature 32.0 – 572 °F
	13.7 µm/m-°C	7.61 µin/in-°F
	@Temperature 0.000 – 1000 °C	@Temperature 32.0 – 1830 °F
	14.2 µm/m-°C	7.89 µin/in-°F
	@Temperature 0.000 – 500 °C	@Temperature 32.0 – 932 °F
Specific heat capacity	0.481 J/g-°C	0.115 BTU/lb-°F	50-100ºC

ANSI standard, steel grade 1008

Equivalent steel grade: ASTM A109; UNS G10080

Specifications for steel grades:

Component	Concentrations %
C	Max 0.10
Fe	Min 99.685
Mn	Max 0.15
P	Max 0.030
S	Max 0.035
Physical properties	Metric system	pounds	Annotate	Cold weasel	Hot forging	Conductor type
Proportion	7.86 g/cc	0.284 lb/in³	Như thép được ủ
Mechanical properties	Metric system	pounds	Annotate	Cold weasel	Hot forging	Conductor type
Tensile stress	241 – 345 MPa	35000 – 50000 psi
Elongation	>= 35 %	>= 35 %	in 2 inches
Elastic force	200 GPa	29000 ksi
Thermal properties	Metric system	pounds	Annotate	Cold weasel	Hot forging	Conductor type
Linear CTE	15.8 µm/m-°C	8.80 µin/in-°F
	@Temperature 20.0 – 649 °C	@Temperature 68.0 – 1200 °F
Thermal conductivity	36.0 W/m-K	250 BTU-in/hr-ft²-°F

ANSI standard, steel grade 1010

Equivalent steel grade: UNS G10100

Specifications for steel grades:

Component	Concentrations %
C	0.080-0.13
Fe	99.18-99.62
Mn	0.30-0.60
P	Max 0.040
S	Max 0.050
Physical properties	metric system	pounds	Annotation	Cold weasel	Hot forging	Conductor type
Proportion	7.87 g/cc	0.284 lb/in³
Mechanical properties	metric system	pounds	Annotation	Cold weasel	Hot forging	Conductor type
Brinell hardness	105	105
Hardness Knoop	123	123	Estimated from Brinell hardness
Rockwell hardness B	60	60	Estimated from Brinell hardness
Vickers hardness	108	108	Estimated from Brinell hardness
Optimal tensile stress	365 MPa	52900 psi
yield stress	305 MPa	44200 psi
Độ dãn dài	20%	20%	In 50 mm
Area reduction degree	40%	40%
Elastic force	205 GPa	29700 ksi	A typical value for steel
Weight	160 GPa	23200 ksi	A typical value for steel
Poisson’s coefficient	0.29	0.29	A typical value for steel
Machinability	55.00%	55.00%	Based on AISI 1212 steel. 100% machinability. The machinability of group I rods, rods, and wire products can be improved by cold drawing.
Power cut	80.0 GPa	11600 ksi	A typical value for steel
Electrical conductivity	metric system	pounds	Annotation	Cold weasel	Hot forging	Conductor type
Resistivity	0.0000143 ohm-cm	0.0000143 ohm-cm
Thermal properties	metric system	pounds	Annotation	Cold weasel	Hot forging	Conductor type
Linear CTE	12.2 µm/m-°C	6.78 µin/in-°F
	@Nhiệt độ 0.000 – 100 °C	@Temperature 32.0 – 212 °F
	13.5 µm/m-°C	7.50 µin/in-°F
	@Nhiệt độ 0.000 – 300 °C	@Temperature 32.0 – 572 °F
	14.2 µm/m-°C	7.89 µin/in-°F
	@Nhiệt độ 0.000 – 500 °C	@Temperature 32.0 – 932 °F
Specific heat capacity	0.448 J/g-°C	0.107 BTU/lb-°F	Unknown status
	@Nhiệt độ >=100 °C	@Temperature >=212 °F
	0.498 J/g-°C	0.119 BTU/lb-°F
	@Nhiệt độ 150 – 200 °C	@Temperature 302 – 392 °F
	0.519 J/g-°C	0.124 BTU/lb-°F
	@Nhiệt độ 200 – 250 °C	@Temperature 392 – 482 °F
	0.536 J/g-°C	0.128 BTU/lb-°F
	@Nhiệt độ 250 – 300 °C	@Temperature 482 – 572 °F
	0.565 J/g-°C	0.135 BTU/lb-°F
	@Nhiệt độ 300 – 350 °C	@Temperature 572 – 662 °F
	0.590 J/g-°C	0.141 BTU/lb-°F
	@Nhiệt độ 350 – 400 °C	@Temperature 662 – 752 °F
	0.649 J/g-°C	0.155 BTU/lb-°F
	@Nhiệt độ 400 – 450 °C	@Temperature 752 – 842 °F
	0.729 J/g-°C	0.174 BTU/lb-°F
	@Nhiệt độ 550 – 600 °C	@Temperature 1020 – 1110 °F
	0.825 J/g-°C	0.197 BTU/lb-°F
	@Nhiệt độ 650 – 700 °C	@Temperature 1200 – 1290 °F
Thermal conductivity	49.8 W/m-K	346 BTU-in/hr-ft²-°F	A typical value for steel

JIS G3101. Standard

You can see the full JIS G3101 standard in the file below!

Standard GB/T 700

STEEL GRADE	CHEMICAL COMPOSITION (MASS %)									MECHANICAL
										pull test				Bending test
	C	Si	Mn	P	S	Cr	Ni	Cu	Oxygen Deoxidation	yield strength (Mpa)	Endurance limit (Mpa)	Elongation (%)	Sample test	bending angle	Bending bearing diameter		Test sample
										T ≤ 16		T ≤ 40			Along rolling direction	Horizontal rolling direction
Q195	0.06 ~ 0.12	≤ 0.30	0.25 ~ 0.5	0.045	0.05	0.3	0.3	0.3	F,b, Z	≥ 195	319 ÷ 390	≥ 32	T ≤ 3: sample P5 3 < T ≤ 16: sample P14	180 ◦	Direct folding	0.5T	GB/T
Q215A	0.009 ~ 0.15	≤ 0.30	0.25 ~ 0.5	0.045	0.05	0.3	0.3	0.3	F,b,Z	≥ 215	355 ÷ 410	≥ 30			0.5T	T
Q215B	0.009 ~ 0.15	≤ 0.30	0.25 ~ 0.5	0.045	0.05	0.3	0.3	0.3	F,b, Z	≥ 215					0.5T	T
Q235A(3)	0.14 ~ 0.22	≤ 0.30	0.30 ~ 0.65(3)	0.045	0.05	0.3	0.3	0.3	F,b, Z	≥ 235	375 ÷ 406	≥ 25			T	1.5T
Q235B	0.12 ~ 0.20	≤ 0.30	0.30 ~ 0.70(3)	0.045	0.05	0.3	0.3	0.3	F,b, Z	≥ 235					T	1.5T
Q235C	≤ 0.18	≤ 0.30	0.35 ~ 0.80	0.04	0.04	0.3	0.3	0.3	Z	≥ 235					T	1.5T
Q235D	≤ 0.17	≤ 0.30	0.35 ~ 0.80	0.035	0.035	0.3	0.3	0.3	TZ	≥ 235					T	1.5T
Q255A	0.18 ~ 0.28	≤ 0.30	0.40 ~ 0.70	0.045	0.045	0.3	0.3	0.3	Z	≥ 255	410 ÷ 510	≥ 23			–	–
Q255D	0.18 ~ 0.28	≤ 0.30	0.40 ~ 0.70(1)	0.045	0.045	0.3	0.3	0.3	Z	≥ 255					–	–
Q275	0.28 ~ 0.38	≤ 0.35	0.50 ~ 0.80	0.045	0.05	0.3	0.3	0.3	Z	≥ 275	490 ÷ 610	≥ 19			–	–

Advantages and applications of hot rolled steel plate.

Because it is rolled directly at high temperature, hot rolled steel plate has good resistance to steel oxidation.

Besides, the durability of hot rolled steel sheets is also quite high, with good bearing capacity.

You can see hot rolled steel in equipment and constructions such as:

• Construction: House frames, doors, partitions, beams, floors, stairs.
• Mechanical: Processing machine parts and equipment with large sizes.
• Transportation: Railroad wagons, train frames, rails, automotive equipment, shipbuilding.
• Household appliances: Fans, racks, ventilation systems, metal crates.

Above is some knowledge about hot-rolled steel plates. Hope it will be useful to you guys.

If you need advice or a quote for hot rolled steel, contact Tiger Steel Hotline!