Qt900

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The phrase 'QT900' primarily refers to two high-performance materials in industrial manufacturing: 1.4418 Quenched and Tempered (QT) Stainless Steel and QT900-2 Ductile Iron. Both materials are characterized by a minimum tensile strength of 900 MPa, positioning them for high-stress applications in energy, machinery, and automotive sectors ApexmetSteelmax.

Market Trends & Insights

* Green Industrial Practices: There is a surging demand for 1.4418 (QT900) stainless steel as industries shift toward sustainable manufacturing. Its extreme corrosion resistance and high strength-to-weight ratio reduce material waste and energy consumption during operation Apexmet.

* Renewable Energy Growth: QT900 materials are increasingly critical for hydropower and wind energy components (e.g., turbine shafts and bearings) due to their ability to withstand fatigue and stress corrosion in harsh environments ApexmetNaver.

* Agricultural Mechanization: QT900-2 ductile iron is a dominant choice for crop harvesting machinery, particularly for high-stress parts like gear castings and connecting rods, where durability is paramount Reliaindustry.

* Recyclability & Compliance: Martensitic stainless steels like 1.4418 are highly recyclable, aligning with global ISO 14001 and LEED certification trends for circular economy models Apexmet.

Product Specifications Summary

Material TypeGradeTensile StrengthKey FeaturesPrimary Applications
Stainless Steel1.4418 (X4CrNiMo16-5-1)900 – 1,100 MPaSoft martensitic, high corrosion resistance, weldable BohlerHydropower turbines, pump shafts, offshore fittings Apexmet
Ductile IronQT900-2 (ISO 1083)Min. 900 MPaExcellent wear resistance, sand casting capability ReliaindustryHarvester gears, engine bodies, machine tool bases Made-In-China

Detailed product availability and supplier data for these high-performance materials are included in the files below.

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Qt900 2 Ductile Iron Casting Parts

Products · 2 lists

Custom Ductile Iron QT900-2 FC400 FC350 Coated Sand Casting for Crop Harvesting Machinery Connecting Rod Die Aluminum Cast Parts

Custom Ductile Iron QT900-2 FC400 FC350 Coated Sand Casting for Crop Harvesting Machinery Connecting Rod Die Aluminum Cast Parts

$1.50-25.0(613)
MOQ: 10 pieces
QT900-2 grade
Shandong Fangzhuo Fabrication Co., Ltd.Shandong Fangzhuo Fabrication Co., Ltd.verified🇨🇳CN4 yrs
China Manufacturer Custom Precision Ductile Iron Casting Part Nodular Cast Iron Part Aluminum Casting Parts

China Manufacturer Custom Precision Ductile Iron Casting Part Nodular Cast Iron Part Aluminum Casting Parts

$585.0(612)
MOQ: 100 pieces
QT900-2 grade25% reorder rate≤4h response time
Zhejiang Shengyi Machinery Co., Ltd.Zhejiang Shengyi Machinery Co., Ltd.🇨🇳CN18 yrs
Customized Grey Casting Iron and Ductile Casting Iron Parts Foundry

Customized Grey Casting Iron and Ductile Casting Iron Parts Foundry

$10-204.7(164)
MOQ: 50 pieces
QT900-2 grade≤3h response time
EVER-POWER INDUSTRY PTE. LTD.EVER-POWER INDUSTRY PTE. LTD.SG9 yrs
Customized Grey Casting Iron and Ductile Casting Iron Parts Foundry

Customized Grey Casting Iron and Ductile Casting Iron Parts Foundry

$150-1604.0(431)
MOQ: 50 pieces
QT900-2 grade≤7h response time
SSJ GROUP PTE. LTD.SSJ GROUP PTE. LTD.SG9 yrs
Customized Grey Casting Iron and Ductile Casting Iron Parts Foundry

Customized Grey Casting Iron and Ductile Casting Iron Parts Foundry

$5-204.8(175)
MOQ: 1000 pieces
QT900-2 grade≤8h response time
BEAUDECO PTE. LTD.BEAUDECO PTE. LTD.SG12 yrs
2026 Dmetal Custom OEM Steel Ductile Sand Casting Parts Precision Investment Casting Cast Iron Parts

2026 Dmetal Custom OEM Steel Ductile Sand Casting Parts Precision Investment Casting Cast Iron Parts

$0.99-5.995.0(599)
MOQ: 100 pieces
QT900-2 grade2000+ store reviews63% reorder rate≤12h response time
Qingdao Dmetal International Trade Co., Ltd.Qingdao Dmetal International Trade Co., Ltd.verified🇨🇳CN12 yrs
Custom Made Ductile Iron Casting Grey Iron Cast Pump Parts From Manufacturer

Custom Made Ductile Iron Casting Grey Iron Cast Pump Parts From Manufacturer

$3-54.9(786)
MOQ: 100 pieces
QT900-2 grade800+ store reviews≤2h response time
Shanghai Matech Machinery Manufacture Corporation Ltd.Shanghai Matech Machinery Manufacture Corporation Ltd.verified🇨🇳CN12 yrs
Customizable Non-standard Ductile Iron Castings Lost Foam Steel Parts Machine Tool Bed Castings Zhenchen ZJ0008 2mm Accuracy

Customizable Non-standard Ductile Iron Castings Lost Foam Steel Parts Machine Tool Bed Castings Zhenchen ZJ0008 2mm Accuracy

$10.484.5(490)
MOQ: 10 pieces
QT900-2 grade≤4h response time
Hangzhou Fuyang Zhenchen Machinery Manufacturing Co., Ltd.Hangzhou Fuyang Zhenchen Machinery Manufacturing Co., Ltd.🇨🇳CN2 yrs
OEM Grey Iron Die Casting Metal Parts Precision Casting Foundry Cast Iron Shell Molding Custom Automotive Machining Parts

OEM Grey Iron Die Casting Metal Parts Precision Casting Foundry Cast Iron Shell Molding Custom Automotive Machining Parts

$2.99-5.995.0(63)
MOQ: 500 pieces
QT900-2 grade
Qingdao Eathu Import And Export Co., Ltd.Qingdao Eathu Import And Export Co., Ltd.verified🇨🇳CN20 yrs
Custom Miner Cast Iron Parts, Casting Iron Fitting and Flange, Cast Pipes and Fittings Ductile Iron Metal Die Casting Service

Custom Miner Cast Iron Parts, Casting Iron Fitting and Flange, Cast Pipes and Fittings Ductile Iron Metal Die Casting Service

$0.104.8(480)
MOQ: 1 piece
QT900-2 grade1400+ store reviews83% reorder rate≤6h response time
Changzhou Haojun Technology Co., Ltd.Changzhou Haojun Technology Co., Ltd.🇨🇳CN7 yrs
China Casting Foundry OEM Cast Iron Parts Resin Sand Gray Iron Castings Ductile Iron Castings

China Casting Foundry OEM Cast Iron Parts Resin Sand Gray Iron Castings Ductile Iron Castings

$1.25-1.554.5(776)
MOQ: 500 pieces
QT900-2 grade800+ store reviews≤3h response time
Qingdao Xinghe Machinery Co., Ltd.Qingdao Xinghe Machinery Co., Ltd.🇨🇳CN14 yrs
High Quality Customized OEM Grey or Gray Iron Ductile Iron Die Casting Parts Pump Housing

High Quality Customized OEM Grey or Gray Iron Ductile Iron Die Casting Parts Pump Housing

$10-304.7(813)
MOQ: 10 pieces
50+ store reviews100% reorder rate≤5h response time
Henan Ascend Machinery & Equipment Co., Ltd.Henan Ascend Machinery & Equipment Co., Ltd.🇨🇳CN9 yrs
SHENGRI China HEB Metal Castings Ductile Cast Iron Surface Painted QT400 Support Custom Casting Parts

SHENGRI China HEB Metal Castings Ductile Cast Iron Surface Painted QT400 Support Custom Casting Parts

$1.35-1.504.8(893)
MOQ: 1 kilogram
≤3h response time
Xinle Shengri Foundry Co., Ltd.Xinle Shengri Foundry Co., Ltd.🇨🇳CN1 yr
Mechanical Parts Casting Ductile Cast Iron Surface Painted QT400 Support Sand Casting Service

Mechanical Parts Casting Ductile Cast Iron Surface Painted QT400 Support Sand Casting Service

$5.88-6.505.0(628)
MOQ: 1 kilogram
100% reorder rate≤1h response time
Xuzhou Excel Metal Products Technology Company LimitedXuzhou Excel Metal Products Technology Company Limited🇨🇳CN1 yr
High Quality Custom Sand Casting Cast Iron Ductile Iron Flange Part Grey Iron Casting for Industrial Use

High Quality Custom Sand Casting Cast Iron Ductile Iron Flange Part Grey Iron Casting for Industrial Use

$1.10-1.505.0(441)
MOQ: 300 kilograms
100% reorder rate≤5h response time
Shaoxing Zining Trading Co., Ltd.Shaoxing Zining Trading Co., Ltd.verified🇨🇳CN4 yrs
Gray Iron Ductile Iron Metal Custom Sand Casting Machined Parts Foundry OEM ISO9001 Certified Surface Treatment GB ASTM AISI

Gray Iron Ductile Iron Metal Custom Sand Casting Machined Parts Foundry OEM ISO9001 Certified Surface Treatment GB ASTM AISI

$0.80-9.805.0(186)
MOQ: 100 pieces
100+ store reviews≤3h response time
Ningbo Asaisi Industry & Trading Co., Ltd.Ningbo Asaisi Industry & Trading Co., Ltd.🇨🇳CN7 yrs
China QT 500 Ductile Cast Iron CNC Machined Metal Turned Parts Broaching Milling Wire EDM Laser Machining Drilling Machining

China QT 500 Ductile Cast Iron CNC Machined Metal Turned Parts Broaching Milling Wire EDM Laser Machining Drilling Machining

$1.59-103.0(945)
MOQ: 1 piece
50+ store reviews69% reorder rate≤2h response time
Shenzhen Roovo Industrial Co. ,ltd.Shenzhen Roovo Industrial Co. ,ltd.verified🇨🇳CN5 yrs
Customized Ductile Iron Investment Casting Parts

Customized Ductile Iron Investment Casting Parts

$1-204.1(946)
MOQ: 200 pieces
33% reorder rate≤3h response time
Taian Xiaite International Trading Co., Ltd.Taian Xiaite International Trading Co., Ltd.🇨🇳CN15 yrs
Cast Foundry Custom  Casting Services for Copper Aluminum Brass Steel Stain Ductile Iron  Grey Iron Large Small Castings Parts

Cast Foundry Custom Casting Services for Copper Aluminum Brass Steel Stain Ductile Iron Grey Iron Large Small Castings Parts

$50-705.0(97)
MOQ: 100 pieces
100+ store reviews15% reorder rate≤9h response time
Qingdao Baoshengxin International Trade Co., Ltd.Qingdao Baoshengxin International Trade Co., Ltd.verified🇨🇳CN3 yrs
Factory Price Investment Iron Casting Foundry Customized Gray/Ductile Iron Casting Parts High Precision Tolerance 0.01mm OEM/ODM

Factory Price Investment Iron Casting Foundry Customized Gray/Ductile Iron Casting Parts High Precision Tolerance 0.01mm OEM/ODM

$0.514.9(467)
MOQ: 300 kilometers
≤1h response time
Hebei Wealth Trading Co., Ltd.Hebei Wealth Trading Co., Ltd.🇨🇳CN2 yrs
Custom GJS-500 Ductile Iron Flanged Pipe Elbow Casting for Industrial Piping Systems

Custom GJS-500 Ductile Iron Flanged Pipe Elbow Casting for Industrial Piping Systems

$1.10-1.503.8(508)
MOQ: 100 pieces
≤2h response time
Luoyang Leyan Machinery Import And Export Co., Ltd.Luoyang Leyan Machinery Import And Export Co., Ltd.🇨🇳CN1 yr
Custom ISO9001 Ductile Iron Sand Casting QT450 Cast Iron Parts for Machinery Castings Part with CNC Machining

Custom ISO9001 Ductile Iron Sand Casting QT450 Cast Iron Parts for Machinery Castings Part with CNC Machining

$1.0~5.0(70)
MOQ: 100 pieces
900+ store reviews50% reorder rate≤4h response time
Qingdao Juize Machinery Co., Ltd.Qingdao Juize Machinery Co., Ltd.verified🇨🇳CN6 yrs
China High Quality Ductile Iron Sand Casting Parts QT450 Custom OEM CNC Machining Service for Industrial Machinery

China High Quality Ductile Iron Sand Casting Parts QT450 Custom OEM CNC Machining Service for Industrial Machinery

$0.20-15.0(586)
MOQ: 1 piece
Shanghai Yunyan Prototype And Mould Manufacture FactoryShanghai Yunyan Prototype And Mould Manufacture Factoryverified🇨🇳CN13 yrs
Custom Irregular Ductile Iron Parts by Shell Mold Casting Heavy Duty Sand Casting Iron Machine Tool Parts

Custom Irregular Ductile Iron Parts by Shell Mold Casting Heavy Duty Sand Casting Iron Machine Tool Parts

$2-104.1(556)
MOQ: 1000 kilograms
Qingdao Ruihengjun Metal Products Co., Ltd.Qingdao Ruihengjun Metal Products Co., Ltd.verified🇨🇳CN3 yrs
Ductile Iron GGG40 GGG50 Sand Casting Shell Part,cast Iron Parts GG20 Housing,sand Grey Iron Casting Iron Cover Part Housing

Ductile Iron GGG40 GGG50 Sand Casting Shell Part,cast Iron Parts GG20 Housing,sand Grey Iron Casting Iron Cover Part Housing

$5-505.0(315)
MOQ: 1 piece
Changzhou Paipu Technology Co., Ltd.Changzhou Paipu Technology Co., Ltd.verified🇨🇳CN4 yrs
Cast Foundry With CNC Machining for Metal Parts Water Pump/Valve/Impeller/Machinery Parts Stainless Steel Aluminium Cast Iron

Cast Foundry With CNC Machining for Metal Parts Water Pump/Valve/Impeller/Machinery Parts Stainless Steel Aluminium Cast Iron

$0.10-0.501.0(833)
MOQ: 1 piece
Qingdao Ruixinyang Machinery Co., Ltd.Qingdao Ruixinyang Machinery Co., Ltd.verified🇨🇳CN2 yrs
OEM Precision Machining Ductile Iron Sand Casting Parts Custom Foundry Metal Foundry Aluminum Sand Casting Cast Iron Auto Parts

OEM Precision Machining Ductile Iron Sand Casting Parts Custom Foundry Metal Foundry Aluminum Sand Casting Cast Iron Auto Parts

$1-25.0(154)
MOQ: 1 piece
53% reorder rate≤2h response time
Qingdao Xuxiangtai Machinery Manufacturing Co., Ltd.Qingdao Xuxiangtai Machinery Manufacturing Co., Ltd.verified🇨🇳CN4 yrs
OEM Sand Casting Ductile Iron T500-07 and QT600-03 and Stainless Steel Pipe Fitting with CNC Machining

OEM Sand Casting Ductile Iron T500-07 and QT600-03 and Stainless Steel Pipe Fitting with CNC Machining

$1-24.6(716)
MOQ: 1 piece
≤2h response time
SHIJIAZHUANG NEULAND METALS TECHNOLOGY CO., LTDSHIJIAZHUANG NEULAND METALS TECHNOLOGY CO., LTD🇨🇳CN6 yrs
Investment Casting Sand Casting Parts Ductile Iron QT450 Square Pivot Housing MT Inspection Prevent Corner Crack Machinery

Investment Casting Sand Casting Parts Ductile Iron QT450 Square Pivot Housing MT Inspection Prevent Corner Crack Machinery

$1.90-2.605.0(154)
MOQ: 500 pieces
40% reorder rate≤3h response time
NINGBO DONGJU MACHINERY CO., LTD.NINGBO DONGJU MACHINERY CO., LTD.🇨🇳CN1 yr
Investment Casting Sand Casting Parts Ductile Iron QT450 Square Pivot Housing MT Inspection Prevent Corner Crack Machinery

Investment Casting Sand Casting Parts Ductile Iron QT450 Square Pivot Housing MT Inspection Prevent Corner Crack Machinery

$1.90-2.604.8(154)
MOQ: 500 pieces
NINGBO DONGJU MACHINERY CO., LTD.NINGBO DONGJU MACHINERY CO., LTD.verified🇨🇳CN2 yrs