NINGBO FOURWAY CO.,LTD. TEST CERTIFICATES (ACCORDING TO EN 10204 3.1) ORDER NO. FW-TR012 TEST DATE: 25TH MAR.2020 PAYMENT TERMS: T/T CERTIFICATE NO. 20-GY2006203252 DESCRIPTION OF PARTS: INVOICE NO. 20FW-062 ITEM NO. QUANTITY DIMENSION STANDARD MATERIAL TEMPERING POSITION MPCS TEMPERATURE 1 6.289 1 1/2"-8UN ASTM A194 GRADE 2H(BLACK OXIDE) 560C MECHANICAL TEST: ITEM NO. SAMPLE NUT AFTER HEAT PROOF LOAD HARDNESS TEST POSITION TREATMENT 540C/24HR/ (USING THREADED COMPLETED NUTS HRB MIN 89 MANDREL) HRC 24-35 1 94.5 261 100lbf 29/30/31.5 ETCHED MACRO-STRUCTURE: THE MACRO ETCH RESULTS FOR SURFACE,CENTER AND RANDAM(l.e.S1 /R1/C1) CHEMICAL ANALYSIS:MATERAILS C45 ANALY NO. C Si Mn P S HEAT NR POSITION % % % REQUIRED VALUE >=0.40 <=0.40 <=1 <=0.04 <=0.05 TEST VALUE 1 0.45 0.25 0.65 0.014 0.007 9A6404 WE HEREBY VERIFY THAT THE OUTCOMES OF TEST, CONDUCTED IN ACCORDANCE ASTM A194-18 - 2H (EDITION 2018) PROPERTY CLASS 2H SPECIFICATIONS, TRUE AND CORRECT IN EVERY ASPECTS AND DETAILS. CHEMICAL ANALYSIS AND MECHANICAL TEST RESULTS IN CONFORMITY WITH ASTM REQUIREMENTS THE RESULTS OF TESTS ARE SATISFACTORY NINGBO FOURWAY CO.,LTD. WORK INSPECTOR: 李照