PAGE 71 API MATERIAL REQUIREMENTS API TEMPERATURE RATINGS API PRESSURE/TEMPERATURE RATINGS (Y)* MATERIAL CLASS MINIMUM MATERIAL REQUIREMENTS BODY, BONNET & FLANGE PRESSURE CONTROLLING PARTS AA - General Service Carbon or low alloy steel Carbon or low alloy steel BB - General Service Carbon or low alloy steel Stainless Steel CC - General Service Stainless Steel Stainless Steel DD - Sour Service a Carbon or low alloy steel b Carbon or low alloy steel b EE - Sour Service a Carbon or low alloy steel b Stainless Steel b FF - Sour Service a Stainless Steel b Stainless Steel b HH - Sour Service a CRAs bcd CRAs bcd TEMPERATURE CLASSIFICATION OPERATING RANGE F° MIN. MAX. C° MIN. MAX. K L N P -75 to 180 -50 to 180 -50 to 140 -20 to 180 -60 to 82 -46 to 82 -46 to 60 -29 to 82 R* Room Temperature* S T U V 0 to 140 0 to 180 0 to 250 35 to 250 -18 to 60 -18 to 82 -18 to 121 2 to 121 X* 0 to 350 -18 to 177 Y* 0 to 650 -18 to 343 TEMPERATURE IN °F 0 to 250 300 350 400 450 500 550 600 650 Rated Working Pressure PSI 2000 1955 1905 1860 1810 1735 1635 1540 1430 3000 2930 2860 2785 2715 2605 2455 2310 2145 5000 4880 4765 4645 4525 4340 4090 3850 3575 PSL (PRODUCT SPECIFICATION LEVEL) MATERIAL REQUIREMENTS PSL Material Requirements are found in API Specification 6A, Specification for Wellhead and Christmas Tree Equipment Section 400 PSL (PRODUCT SPECIFICATION LEVEL) QUALITY CONTROL PSL Quality Control is found in API Specification 6A, Specification for Wellhead and Christmas Tree Equipment Section 400 PSL (PERFORMANCE REQUIREMENTS) LEVELS There are two Performance Requirement Levels, PR1 and PR2.The latter represents more rigorous performance requirements. See API Specification 6A, Section 300 and Section 900. Section 905 covers valves (905.3 - FlowlineValves, 9.5.5 - ActuatedValves). *Based on ‘Y’ Temp. Due to elastomers GateValves & Chokes are temp ‘T’ or ‘U’ as standard hence consult separate chart *No longer referenced in API6A/ISO10423 - 2013 As per API6A (ISO 10423) 2013: a As defined by ISO 15156 (all parts) (NACE MR0175) (see API6A) b In accordance with ISO 15156 (all parts) (NACE MR0175) (see API6A) c CRA required on retained fluid-wetted surfaces only; CRA cladding of low-alloy steel is permitted (see API6A) d CRA as defined in API6A; ISO 15156 (all parts) (NACE MR0175; see API6A) definition of CRA does not apply. 11 VALVE & CHOKE SPECIFICATIONS