1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 09 29 N-STATUS No Replacement Named, No known use C. Mracna, NA 2004 10 22 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 1971 07 26 Released 2G/CH2050QP Printed copies are uncontrolled Copyright 2009, Ford Global Technologies
2、 LLC Page 1 of 2 RUBBER HOSE WITH COTTON BRAIDED SQ-M2D9021-AA REINFORCEMENT NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a nitrile rubber hose reinforced with one ply of braided cotton. 2. APPLICATION This specification was released originally for material u
3、sed for fuel line hose and oil cooler hose for automatic transmission or as shown on engineering drawing. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Material (WSS-M99P1111-
4、A). 3.1 ORIGINAL PROPERTIES Hardness 68 - 78 IRHD (ASTM D 1415) Tensile Strength, min 10.29 MPa (ASTM D 412, Die C) Elongation at BreaK, min 250% (ASTM D 412, Die C) 3.2 CHANGE AFTER AGEING FOR 70 hours at 100 +/- 2 C (ASTM D 573) Hardness, units, max +15 Tensile Strength, max -20% Elongation at Bre
5、ak, max -50% 3.3. CHANGE AFTER IMMERSION IN ASTM OIL NO. 1 for 70 hours at 100 +/- 2 C (ASTM D 471) Hardness, units -5 to +10 Tensile Strength, max -20 % Elongation at Break, max -40 % Volume -10 to +5% ENGINEERING MATERIAL SPECIFICATIONSQ-M2D9021-AAPrinted copies are uncontrolled Copyright 2009, Fo
6、rd Global Technologies, LLC Page 2 of 2 3.4 CHANGE AFTER IMMERSION IN ASTM OIL NO. 3 For 70 hours at 100 +/- 2 C (ASTM D 471) Hardness, units -10 to +5 Tensile Strength, max -35 % Elongation at Break, max -35 % Volume 0 to +25 3.5 CHANGE AFTER IMMERSION IN ASTM FUEL A For 48 hours at 23 +/- 2 C (AST
7、M D 471) Hardness, units -5 to +5 Tensile Strength, max -10% Elongation at Break, max -20% Volume -5 to +5 3.6 CHANGE AFTER IMMERSION IN ASTM FUEL B For 48 hours at 23 + 2 C (ASTM D 471) Hardness, units, max -20 Tensile Strength, max -50% Elongation at Break, max -50% Volume, max +30% 3.7 BURSTING S
8、TRENGTH OF THE HOSE (ASTM D 380), min 4.9 MPa 3.8 LOW TEMPERATURE FLEXIBILITY OF THE HOSE no breaking or cracking Condition hose in a straight position at -40 +/- 1 C for 24 hours. After conditioning bend the hose around a mandrel having a diameter of five times the nominal inside diameter. 5. GENERAL INFORMATION The cotton of the hose may be colored black and impregnated flame retardant.
