Products

Foundry Pig Iron (Grey Cast Iron Pig Iron)

Our foundry pig iron is produced per GB/T 718-2005, available in three grades: Z14, Z18, and Z22. The silicon content differentiates the grades, allowing foundries to select the optimal charge material for their specific casting requirements.

Standard: GB/T 718-2005
Grades: Z14, Z18, Z22
Block weight: 2-7 kg per piece
Application: Charge material for grey iron casting production
Packaging: 1-ton bulk bags or loose load

Chemical Composition (%)

Grade	C	Si	Mn (Group 1)	Mn (Group 2)	P (max)	S (max)
Z14	≥3.50	1.25-1.60	≤0.50	0.50-1.00	0.06	0.04
Z18	≥3.50	1.60-2.00	≤0.50	0.50-1.00	0.06	0.04
Z22	≥3.50	2.00-2.40	≤0.50	0.50-1.00	0.06	0.04

Ductile Iron Pig Iron (Nodular Pig Iron)

Produced per GB/T 1412-2005, our ductile iron pig iron features low sulfur and low titanium content, making it the ideal base material for ductile iron casting production. Available in Q10 and Q12 grades.

Standard: GB/T 1412-2005
Grades: Q10, Q12
Low sulfur (≤0.03%) and low titanium (≤0.05%)
Application: Base material for ductile (nodular) iron castings
Packaging: 1-ton bulk bags or loose load

Chemical Composition (%)

Grade	C	Si	Mn	P (max)	S (max)	Ti (max)
Q10	≥3.40	0.50-1.00	≤0.30	0.05	0.03	0.05
Q12	≥3.40	1.00-1.40	≤0.30	0.05	0.03	0.05

Grey Iron Castings

Custom grey iron casting parts produced per GB/T 9439-2010. We manufacture to customer drawings and specifications, with grades ranging from HT150 to HT350. Maximum single piece weight up to 1.2 tons.

Standard: GB/T 9439-2010
Grades: HT150, HT200, HT250, HT300, HT350
Max single piece: ~1.2 tons
Applications: Machinery bases, housings, engine blocks, valve bodies
Surface treatment: As-cast, machined, or painted per requirements

Mechanical Properties

Grade	Tensile Strength (MPa)	Hardness (HBW)	Typical Application
HT150	≥150	130-200	Non-critical parts
HT200	≥200	150-220	General machinery
HT250	≥250	170-240	Engine blocks, gear housings
HT300	≥300	190-260	Heavy-duty: machine tool beds
HT350	≥350	210-280	High-stress: gears, high-pressure valves

Ductile Iron Castings (Nodular Iron Castings)

High-strength ductile iron castings per GB/T 1348-2009. Offering excellent combination of strength, toughness, and ductility. Available in grades from QT350-22L to QT900-2.

Standard: GB/T 1348-2009
Grades: QT400-18, QT450-10, QT500-7, QT600-3, QT700-2, QT800-2, QT900-2
Max single piece: ~1.2 tons
Applications: Automotive, agricultural, wind power, railway
Heat treatment: Annealing, normalizing, or quenching & tempering available

Mechanical Properties

Grade	Tensile (MPa)	Yield (MPa)	Elongation (%)	Hardness (HBW)
QT350-22L	≥350	≥220	≥22	≤160
QT400-18	≥400	≥250	≥18	120-175
QT450-10	≥450	≥310	≥10	160-210
QT500-7	≥500	≥320	≥7	170-230
QT600-3	≥600	≥370	≥3	190-270
QT700-2	≥700	≥420	≥2	225-305
QT800-2	≥800	≥480	≥2	245-335
QT900-2	≥900	≥600	≥2	270-360

Foundry Pig Iron (Grey Cast Iron Pig Iron)

Chemical Composition (%)

Ductile Iron Pig Iron (Nodular Pig Iron)

Chemical Composition (%)

Grey Iron Castings

Mechanical Properties

Ductile Iron Castings (Nodular Iron Castings)

Mechanical Properties

Cast Iron Pipe Fittings

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