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Hot Rolled Steel

Hot Rolling: SPHC, SPHD, SPHE, SPHT1/2/3, S355J0, S355JR, S355J2

All three grades are JIS G3131 standard hot rolled low-carbon steel, specially designed for automotive stamping & cold forming.

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What’s SPHC, SPHD, SPHE Automotive Stamping Hot Rolling?

All three grades are JIS G3131 standard hot rolled low-carbon steel, specially designed for automotive stamping & cold forming.

SPHCC——The first "S" stands for "Steel", the "P" for "Plate", the "H" for "Heat", and the "C" for "Commercial". Together, they represent general hot-rolled steel plates and steel strips.

SPHD——This indicates hot-rolled steel plates and steel strips for stamping purposes.

SPHE——This represents hot-rolled steel plates and steel strips for deep drawing.

Product Characteristics

Steel grade	Nominal thickness a(mm)	Tensile Test a.b							180° bending test a.c
		Tensile Strength (MPa)	Elongation after fracture (%) for the following thicknesses (mm)						Bending Mandrel Diameter for Specified Thicknesses (mm)
		Tensile Strength (MPa)	<1.6	1.6~<2.0	2.0~<2.5	2.5~<3.2	3.2~<4.0	≥4.0	<3.2	≥3.2
SPHC	≤16.0	≥270	≥27	≥29	≥29	≥29	≥31	≥31	0a	1a
SPHD	≤16.0	≥270	≥30	≥32	≥33	≥35	≥37	≥39		0a
SPHE	≤8.0	≥270	≥31	≥33	≥35	≥37	≥39	≥41		0a

a The specified values for tensile test and bending test listed in the table apply to longitudinal specimens.

b Tensile test specimens with gauge length L0 = 50 mm and width b = 25 mm shall be used, corresponding to Specimen P14 specified in GB/T 228.

c The width b of bending specimens shall be no less than 20 mm; a width of 20 mm shall be adopted for arbitration tests.

Chemical Composition

Steel grade	Chemical Composition (Ladle Analysis), %
Steel grade	C	Si	Mn	P	S	Alt
SPHC	≤0.15	≤0.05	≤0.60	≤0.035	≤0.035	≥0.010
SPHD	≤0.10	≤0.05	≤0.50	≤0.035	≤0.035	≥0.020
SPHE	≤0.10	≤0.05	≤0.50	≤0.030	≤0.035	≥0.020

The residual element contents in steel shall comply with the following requirements:

Cu ≤ 0.20%, Cr ≤ 0.15%, Ni ≤ 0.15%.

However, chemical analysis for these elements may be omitted if the supplier can guarantee that the residual contents of Cu, Cr and Ni in steel meet the above specified limits.

1. SPHC (Commercial Quality)

Feature: General forming & welding performance, stable toughness, cost-effective

Automotive Use: Simple stamped parts, auto brackets, chassis accessories, general structural components

Position: Basic universal automotive hot rolled stamping steel

2. SPHD (Drawing Quality)

Feature: Better ductility & stamping performance than SPHC, no cracking during medium deep drawing

Automotive Use: Auto inner structural parts, wheel rims, seat base parts, medium-difficulty stamping components

Position: Medium-grade automotive stamping steel

3. SPHE (Deep Drawing Quality)

Feature: Excellent deep-formability, ultra-high ductility, uniform texture, zero cracking for complex forming

Automotive Use: Complex auto thick stamping parts, automotive structural deep-drawn components, high-precision forming parts

Position: Top-grade hot rolled deep drawing steel for automotive industry

What’s SPHT1, SPHT2, SPHT3?

SPHT1, SPHT2,SPHT3 is Hot Rolled carbon steel strip for pipes and tubes.

The SPHT series complies with the Japanese standard JIS G3132. All of them are hot-rolled carbon steel strips, specifically designed for manufacturing automotive welded pipes. They do not belong to the sheet materials for stamping panels and are dedicated hot-rolled base materials for automotive pipe products.

SPHT1/SPHT2/SPHT3 are JIS standard hot rolled steel strips for automotive welded tubes.

SPHT1: For light load general vehicle pipelines

SPHT2: Standard chassis & medium-pressure auto tubes (best-selling grade)

SPHT3: Heavy-duty, complex bending critical automotive structural & exhaust pipes

What’s S355J0, S355JR, S355J2?

Non-alloy structural steels according to European standard - EN10025

Mechanical properties

Grades	Minimum yield strendth ReH Mpa						Tensile strength Rm(Mpa)		Minimum elongation \(L_0 = 5,65 \quad \sqrt{S_0}\) 9%				Notch impact test
	Nominal thickness(mm)						Nominal thickness(mm)						Temperature	min absorbed energy
	≤16	>16 ≤40	>40 ≤63	>63 ≤80	>80 ≤100	>100 ≤125	≥3 ≤100	>100 ≤125	≥3 ≤410	>40 ≤63	>63 ≤100	>100 ≤125	℃	J
S355JR	355	345	335	325	315	295	470-630	450-600	22	21	20	18	20	27
S355J0													0	27
S355J2													-20	27

Chemical composition

Grades	C max %			Mn max%	Si max%	P max%	S max%	N max%	Cu max%	other max%	CEV max%
	Nominal thickness(mm)										Nominal thickness(mm)
	≤16	>16 ≤40	>40								≤30	>30 ≤40	>40 ≤125
S355JR	0.24	0.24	0.24	1.6	0.55	0.4	0.04	0.012	0.55	-	0.45	0.47	0.47
S355J0	0.2	0.2	0.22	1.6	0.55	0.035	0.035	0.012	0.55	-	0.45	0.47	0.47
S355J2	0.2	0.2	0.22	1.6	0.55	0.03	0.03	-	0.55	-	0.45	0.47	0.47

Application areas

S355JR, S355J0, S355J2

S355JR, S355J0, S355J2 hot rolled steel are widely used for heavy commercial vehicles, special engineering trucks and agricultural machinery, mainly for welded load-bearing thick structural parts:

S355JR

Ordinary trailer chassis, cargo box frame, sanitation truck brackets for normal temperature service.

S355J0

Semi-trailer frames, medium cold-resistant vehicle structural components for temperate regions.

S355J2

Heavy-duty trucks, cold-region transport vehicles, crane subframes with excellent -20℃ low temperature impact resistance.

SPHC / 510L

Not recommended for passenger car thin exterior stamped parts; choose SPHC / 510L series for auto deep drawing & frame beam stamping.

Size & Supply Range

Shipment & Package

Hot Rolled Steel Coils/Plates－ Buyer’s FAQs

How to choose SPHC/SPHD/SPHE for auto stamping?

Choose SPHC for simple stamping, SPHD for medium drawing, SPHE for complex deep drawing automotive parts.

What’s the difference between S235JR, S355JR, S355J0, S355J2?

They differ in yield strength and low-temperature impact resistance; pick S235JR for light loads, S355 series for heavy loads, select JR/J0/J2 based on local minimum operating temperature.

What’s the minimum order quantity for hot rolled coils?

We accept 1pc 1500*3000mm sheets.

Can you cut hot rolled coils into customized sheets?

Yes, we provide cutting & cut-to-length service for hot rolled coils.

We can customize sheets in your required width, length and flatness.

Are hot rolled plates easy to bend and weld?

Yes, our hot rolled steel has excellent bendability and weldability.

What certificates can you provide before shipment?

We can supply official Mill Test Certificate (MTC) with full mechanical & chemical data.Third-party inspection reports are available upon your request before shipment.