Pump casing
    Specializing in stainless steel, carbon steel, alloy steel and other precision casting research and production of Hong Kong-funded wholly-owned enterprises. Has developed into a large-scale precision casting processing-oriented enterprises, with strong technical force, reliable equipment security and professional management concept. Starting from the strict import of raw materials, rigorous production process, strict quality control, strict after-sales service, won the different needs of all parties customers.
Classification:
Product Description
Comply with relevant standards:
Ductile iron parts GB/T 1348-2009
JB/T5938-1991 standard
Technical parameters:
| 
 Grade 
 | 
 Tensile strength σ bN/ mm2(kgf/nmm2)  | 
 Yield strength σ0.2N/ mm2(kgf/nmm2)  | 
 Elongation σ (%) 
 | 
 For reference 
 | 
|
| 
 Minimum value 
 | 
 Brinell hardness HB 
 | 
 Main metallographic structure 
 | 
|||
| 
 QT400-18 
 | 
 400 (40. 80) 
 | 
 250 (25. 50) 
 | 
 18 
 | 
 130-180 
 | 
 Ferrite 
 | 
| 
 QT400-15 
 | 
 400 (40. 80) 
 | 
 250 (25. 50) 
 | 
 15 
 | 
 130-180 
 | 
 Ferrite 
 | 
| 
 QT400-10 
 | 
 450 (45. 90) 
 | 
 310 (31. 60) 
 | 
 10 
 | 
 160-210 
 | 
 Ferrite 
 | 
| 
 QT500-7 
 | 
 500 (51. 00) 
 | 
 310 (32. 65) 
 | 
 7 
 | 
 170-250 
 | 
 Ferrite + spheroidal graphite 
 | 
| 
 QT600-3 
 | 
 600 (61. 20) 
 | 
 370 (37. 75) 
 | 
 3 
 | 
 190-270 
 | 
 Ferrite + spheroidal graphite 
 | 
| 
 QT700-2 
 | 
 700 (71. 40) 
 | 
 420 (42. 85) 
 | 
 2 
 | 
 225-305 
 | 
 Spheroidal graphite 
 | 
| 
 QT800-2 
 | 
 800 (81. 60) 
 | 
 480 (49. 98) 
 | 
 2 
 | 
 124-335 
 | 
 Exposure body or tempering structure 
 | 
| 
 QT900-2 
 | 
 900 (91. 80) 
 | 
 600 (61. 20) 
 | 
 2 
 | 
 280-360 
 | 
 Bainite or tempered martensite 
 | 
Product inquiry
Huizhou Winnington Casting Co., Ltd.
Tel: +86-752-5751628
Fax: 86-752-5751625
E-mail: chw@winningtoncasting.com
Address: Xikeng Village, Huihuan Street, Zhongkai High-tech Zone, Huizhou City
Website: http://www.winningtoncasting.com
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