Hardfacing

Hardfacing Your best choice for your daily anti-wear challenges. Covered electrodes for anti-wear applications UTP Maintenance offers a full range of covered electrodes for anti-wear applications. Products Product Name AWS DIN Abrasion Corrosion Erosion Cavitation Heat Impact Metal to Earth Metal to Metal UTP 34 N AWS A5.13 / E CuMnNiAl DIN 8555 / E 31-UM-200-CN x x x UTP 73 G 2 - / - DIN 8555 / E 3-UM-55-ST x x x x x UTP 73 G 3 - / - DIN 8555 / E 3-UM-45-T x x x x x UTP 73 G 4 - / - DIN 8555 / E 3-UM-40-PT x x x x x UTP 665 - / - - / - x x x UTP 673 - / - DIN 8555 / E 3-UM-60-ST x x x x x UTP 690 AWS A5.13 / E Fe 5-B (mod.) DIN 8555 / E 4-UM-60-ST x x UTP 702 - / - DIN 8555 / E 3-UM-350-T x x x UTP 750 - / - DIN 8555 / E 3-UM-50-CTZ x x x x UTP 7000 - / - DIN 8555 / E23-UM-200-CKTZ x x x x UTP 7008 - / - DIN 8555 / E23-UM-250-CKTZ UTP 7200 AWS A 5.13 / ~E FeMn-A DIN 8555 / ~E7-UM-250-KP x x UTP BMC - / - DIN 8555 / E 7-UM-250-KPR x x UTP CELSIT 706 AWS A5.13 / E CoCr-A DIN 8555 / E 20-UM-40-CSTZ x x x x x x x UTP CELSIT 721 AWS A5.13 / ER CoCr-E DIN 8555 / E 20-UM-350-CTZ x x x x x x x UTP DUR 250 - / - DIN 8555 / E 1-UM-250 x UTP DUR 350 - / - DIN 8555 / E 1-UM-350 x x UTP DUR 650 KB - / - DIN 8555 / E 6-UM-60 x x x x x x UTP HYDROCAV - / - DIN 8555 / E 5-UM-250-CKZT x x x x UTP LEDURIT 61 AWS A5.13 / ~E FeCr-A 1 DIN 8555 / E 10-UM-60-GRZ x x x UTP LEDURIT 65 - / - DIN 14700 / E Fe16 x x x x Solid wires for anti-wear applications UTP Maintenance offers a full range of solid wires for anti-wear applications. Products Product Name AWS DIN Abrasion Corrosion Erosion Cavitation Heat Impact Metal to Earth Metal to Metal UTP A 34 N EN ISO 14700 / S Cu 1 AWS A5.7 / ER CuMnNiAl x x x UTP A 73 G 2 EN ISO 14700 / S Fe8 - / - x x x x x UTP A 73 G 3 EN 14700 / S Z Fe3 - / - x x x x x UTP A 73 G 4 EN 14700 / S Z Fe3 - / - x x x x x UTP A 661 EN ISO 14343-A / G Z 17 Mo H - / - x x x x UTP A 702 EN ISO 14700 / S Z Fe5 - / - x x x UTP A 6170 CO EN ISO 18274 / S Ni 6617 (NiCr22Co12Mo9) AWS A5.14 / ERNiCrCoMo-1 x x x x x UTP A DUR 250 EN 14700 / SZ Fe 1 - / - x UTP A DUR 350 EN 14700 / SZ Fe 2 - / - x x UTP A DUR 600 EN 14700 / SZ Fe 8 x x x x x UTP A DUR 650 EN 14700 / S Fe 8 x x x x x x x Gas shielded cored wires for anti-wear applications UTP Maintenance offers a full range of gas shielded cored wires for anti-wear applications. Manganese steels Product Name DIN HB HRC C Mn Si Cr Ni Mo Ti W V B Fe Low stress abrasion High stress abrasion Erosion Impact Corrosion Cavitation Metal to metal wear SK 797-G DIN 8555 / MF 7-GF-200-KP 185 0.9 14.5 0.3 0.5 Bal. x x SK AP-G DIN 8555 / MF 7-GF-200-KP 200 0.4 17 0.3 12 Bal. x x x Low-alloyed steels Product Name DIN HB HRC C Mn Si Cr Ni Mo Ti W V B Fe Low stress abrasion High stress abrasion Erosion Impact Corrosion Cavitation Metal to metal wear SK 250-G DIN 8555 / MF 1-GF-225-GP 225 0.09 1.2 0.5 0.4 Bal. x SK 258-G DIN 8555 / MF 6-GF-55-GT 53 0.45 1.6 0.8 5.5 1.3 1.3 Bal. x x x SK 258L-G DIN 8555 / MF 5-GF-45-GT 45 0.17 1.6 0.6 5.5 1.5 1.5 Bal. x x x SK 258 TIC-G DIN 8555 / MF 6-GF-60-GP 59 1.6 0.8 0.3 5.6 1.1 5.8 Bal. x x x SK 300-G DIN 8555 / MF 1-GF-300-GP 300 0.25 1.5 0.4 1.4 Bal. x SK 350-G DIN 8555 / MF 1-GF-350-GP 330 0.35 1.5 0.4 1.8 0.5 Bal. x SK 450-G DIN 8555 / MF 1-GF-450-GP 47 0.27 1.1 0.2 2.3 0.5 Bal. x 52 0.26 1.3 0.7 5 0.5 Bal. x SK 600-G DIN 8555 / MF 6-GF-60-GP 59 0.52 1.5 1.2 5.9 0.8 0.05 Bal. x x x SK 600 C-G - / - 60 0.4 1.2 0.8 6 0.7 Bal. x x x SK 650-G DIN 8555 / MF 3-GF-60-GT 58 0.45 0.9 0.6 5.5 1.4 1.6 0.5 Bal. x x x SK A68-G DIN 8555 / MF 2-GF-65-G 62 0.5 1.3 1 3.7 Bal. x x x High-alloyed steels Product Name DIN HB HRC C Mn Si Cr Ni Mo Nb W V B Fe Low stress abrasion High stress abrasion Erosion Impact Corrosion Cavitation Metal to metal wear Heat SK 255-G DIN 8555 / MF 10-GF-60-G 58 4.5 0.6 1.2 26 0.3 Bal. x SK A45-G DIN 8555 / MF 10-GF-65-GT 63 5.3 0.1 0.7 21 6.3 6 1.8 0.75 Bal. x x SK ABRA-MAX O/G DIN 8555 / MF 10-GF-70-G 70 + + + + + + + + Bal. x x x SK CUAL10-G DIN 8555 / MF 31-GF-250-C 260 0.02 0.9 0.1 42 Other: Al=10.5/Cu=Bal. 15 x x SK HYDROCAV DIN 8555 / MF 6-GF-200-K 220 0.17 8.5 1.8 21 Other: Co=12.0/N=0.25 Bal. x x x x Tool steels Product Name DIN HB HRC C Mn Si Cr Ni Mo Ti W V Fe Co Low stress abrasion Erosion Impact Corrosion Cavitation Metal to metal wear Heat SK D8-G DIN 8555 / MF 3-GF-40-T 38 0.1 1.1 0.4 2.4 SK D8 S-G DIN 8555 / MF 3-GF-45-T 38 0.1 1.1 0.5 2.4 3.8 0.6 Bal. x SK D11-G DIN 8555 / MF 3-GF-55-T 56 0.3 1.2 0.6 5.3 3.5 0.6 Bal. x SK D12-G DIN 8555 / MF 3-GF-55-T 55 0.35 1.2 0.3 7.5 1.9 0.05 1.6 0.4 Bal. x SK D12 S-G DIN 8555 / MF 3-GF-55-T 56 0.38 1.2 0.5 7.5 1.7 0.3 x SK D15-G DIN 8555 / MF 3-GF-60-T 60 0.4 0.5 0.4 1.4 1.7 0.25 x SK D16-G DIN 8555 / MF 3-GF-50-T 51 0.28 0.5 0.4 8.5 0.5 9.0 0.4 Bal. 3.0 x x x SK D20-G DIN 8555 / MF 4-GF-60-S 60 1.2 0.4 0.4 4.5 2.2 2.4 0.3 0.3 Bal. x SK D33-G DIN 8555 / MF 6-GF-50-C 50 0.25 1.0 0.6 11.0 8.0 1.8 1.7 Bal. x x SK D35-G DIN 8555 / MF 5-GF-50-CT 50 0.16 0.1 0.7 13.0 0.3 1.1 0.8 0.9 Bal. 1.7 x x SK D37-G DIN 8555 / MF 3-GF-45-T 45 0.2 0.7 0.5 10.5 2.4 Bal. 14.0 x x x x SK D37S-G DIN 8555 / MF 3-GF-50-T 49 0.2 0.7 0.5 10.5 3.0 2.2 0.1 Bal. x x SK D40-G DIN 8555 / MF 3-GF-45-T 42 0.21 0.6 0.5 5.4 3.0 2.5 2.2 0.6 Bal. x x SK D40 S-G DIN 8555 / MF 3-GF-50-T 42 0.25 0.9 0.6 5.6 2.5 2.4 0.6 Bal. x SK D52-G DIN 8555 / MF 3-GF-300-T 40 0.13 1.6 0.6 2.0 2.7 0.9 Bal. x x SK D250-G DIN 8555 / MF 1-GF-350 330 0.09 0.8 0.3 2.9 2.4 Bal. x x Cobalt steels Product Name DIN HB HRC C Mn Si Cr Ni Mo Ti W Fe Co Low stress abrasion High stress abrasion Erosion Impact Corrosion Cavitation Metal to metal wear Heat SK STELKAY 1-G DIN 8555 / MF 20-GF-55-CTZ 54 2.3 0.8 1.6 26.5 11.5 3 Bal. SK STELKAY 6-G DIN 8555 / MF 20-GF-40-CTZ 40 0.95 0.8 1.4 30 4.2 3 Bal x x x x SK STELKAY 6 A-G DIN 8555 / MF 20-GF-45-CTZ 43 1.35 0.8 1.5 27 3.5 3 Bal x x x x SK STELKAY 6 T-G DIN 8555 / MF 20-GF-40-CTZ 40 0.95 0.8 0.8 31.5 5 3 Bal x x x x SK STELKAY 21-G DIN 8555 / MF 20-GF-300-CTZ 32 0.27 1 1.2 28 2.4 5 3.5 Bal x x x x x SK STELKAY 21 T-G DIN 8555 / MF 20-GF-300-CTZ 32 0.27 1 1.2 28 2.4 5 3.5 Bal x x x x x SK STELKAY 25-G DIN 8555 / MF 20-GF-200-STZ 195 0.01 0.8 0.4 20.2 10 13 3.5 Bal x x x x x Nickel alloys Product Name DIN HB HRC C Mn Si Cr Ni Mo Ti W B Fe Co Al High stress abrasion Impact Corrosion Cavitation Metal to metal wear Heat SK 900 NI-G DIN 8555 / MF 22-GF-45-G 46 1.7 0.1 0.1 Bal. 41.5 0.8 1.1 x x x SK FN-G DIN 8555 / MF NiFe-1-S 200 1.1 1.8 0.4 Bal. 45 x x SK FNM-G - / - 145 0.2 12 0.4 Bal. 48.0 x x SK FNM4-G DIN 8555 / MF NiFe-2-S 140 0.25 3.5 0.7 Bal. 30.0 x x SK FNMS-G - / - 150 0.25 10 0.7 Bal. 48.0 x x SK TOOL ALLOY C-G DIN 8555 / MF 23-GF-200-CKZ 195 0.05 1 0.2 16 Bal. 16 4 7.0 x x x SK TOOL ALLOY CO-G DIN 8555 / MF 23-GF-200-CKZ 220 0.03 1.3 0.7 16 Bal. 16 4 3 2.5 x x x SK U520 CO-G DIN 8555 / MF 22-GF-200-TZ 190 0.02 0.5 0.3 19 Bal. 2.7 2.0 18 1.4 x x x SK U521-G DIN 8555 / MF 23-GF-200-TZ 200 0.01 0.3 18.5 Bal. 4.5 3.5 1.8 12.5 1.0 x x x Stainless steels Product Name DIN HB HRC C Mn Si Cr Ni Mo Nb Ti W V Fe Cu Low stress abrasion Impact Corrosion Cavitation Metal to metal wear Heat SK 307-G DIN 8555 / MF 8-GF-150-KP 165 0.1 7.1 0.8 17.9 8.5 Bal. 02 x x SK 356-G DIN 8555 / MF 4-GF-50-ST 47 0.7 1.2 0.9 12 0.7 3.8 0.9 2 Bal. x x x SK 402-G DIN 8555 / MF 8-GF-150-KP 170 0.1 6.6 0.6 17.1 7.8 Bal. x SK 410 C-G DIN 8555 / MF 5-GF-40-C 40 0.08 0.7 0.4 13 Bal. x x SK 430-G DIN 8555 / MF 5-GF-200-C 190 0.06 0.8 0.6 17.8 0.2 Bal. x SK 430 MO-G - / - 260 0.25 1 0.6 19 0.9 Bal. x SK 519-G DIN 8555 / MF 8-GF-C 0.02 2.8 0.5 20.5 24.2 5 Other: N = 0.12 Bal. 11 x x SK 741-G DIN 8555 / MF 5-GF-40-C 41 0.06 0.5 0.6 13 5.5 0.8 Bal. x x SK ANTINIT DUR 290 DIN 8555 / MF 9-GF-250-CT 250 0.06 1.9 5.6 17 8.3 Bal. x x x x SK ANTINIT DUR 500 DIN 8555 / MF 9-GF-45-CT 43 0.07 4.3 4.5 17.5 8 5.4 1 Bal. x x x x Open arc wires for anti-wear applications UTP Maintenance offers a full range of open arc wires for anti-wear applications. Austenitic manganese steels Product Name DIN HB HRC C Mn Si Cr Ni Mo Nb Ti W Fe Low stress abrasion High stress abrasion Erosion Impact Corrosion Cavitation Metal to metal wear Heat SK 14 MN-O DIN 8555 / MF 7-GF-200/450-KP 195 0.9 14 0.5 0.5 0.5 Bal. x SK 218-O - / - 200 0.9 14 0.5 3.5 0.4 Bal. x SK 313-O - / - 200 1.12 14.1 0.2 3.3 3.5 2.5 0.12 Bal. x x SK 624-O DIN 8555 / MF 7-GF-250-GKP 240 1 17.2 0.3 8.2 Bal. x SK AP-O DIN 8555 / MF 7-GF-200-KP 205 0.37 16 0.3 12.8 Bal. x x SK AP-O SP DIN 8555 / MF 7-GF-200-KP 205 0.39 16.3 0.4 12.9 Bal. x x Unalloyed fine grained and low-alloyed steels Product Name DIN HB HRC C Mn Si Cr Ni Mo Ti W Fe Low stress abrasion High stress abrasion Erosion Impact Corrosion Cavitation Metal to metal wear Heat SK 232-O DIN 8555 / MF 1-GF-150-P 170 0.04 0.7 0.4 2.8 Bal. SK 242-O DIN 8555 / MF 1-GF-40-P 40 0.11 0.6 0.6 2.4 0.9 Bal. x x SK 258-O - / - 55 0.47 1.5 0.8 5.7 1.4 1.5 Bal. x x SK 258 L-O DIN 8555 / MF 6-GF-45-GT 46 0.25 1.4 0.7 5.3 1.3 1.2 Bal. x x x x SK 258 TIC-O DIN 8555 / MF 6-GF-60-GP 58 1.8 0.9 0.2 6.1 1.4 5.5 Bal. x x SK 300-O - / - 285 0.1 1.1 0.7 0.5 0.3 Bal. x SK 400-O - / - 40 0.13 0.7 0.6 2.4 Bal. x x SK 795-O DIN 8555 / MF 6-GF-40-G 40 1.9 1.5 1.8 9 1.4 Bal. x x SK A12-O DIN 8555 / MF 6-GF-55-GT 55 0.35 0.8 3 9.6 0.5 Bal. x x SK BU-C1 DIN 8555 / MF 1-GF-250-P 250 0.04 0.8 0.1 Bal. x SK BU-O DIN 8555 / MF 1-GF-300-P 280 0.1 0.9 0.6 0.5 0.3 Bal. x SK CRMO21NI-O DIN 8555 / MF 1-GF-350-GP 40 0.08 0.9 0.7 2.3 2 1 Bal. x SK SOUDOCORE S8-O - / - 190 0.28 0.4 0.1 Bal. x High-alloyed steels Product Name DIN HB HRC C Mn Si Cr Mo Nb W V B Fe Low stress abrasion High stress abrasion Erosion Impact Corrosion Cavitation Metal to metal wear Heat SK 162-O DIN 8555 / MF 10-GF-65-G 63 5.4 0.2 1.3 27 0.3 Bal. x x SK 162WP-O DIN 8555 / MF 10-GF-65-G 63 5.4 0.2 1.3 27 1.8 0.75 Bal. x x SK 240-O DIN 8555 / MF 10-GF-55-G 56 3.5 1.3 1.7 16.5 + + Bal. x SK 255 MO-O - / - 60 5 0.2 0.5 28 1.3 Bal. x x SK 255-O DIN 8555 / MF 10-GF-60-G 60 5 0.6 1 27 0.5 Bal. x x SK 256-O DIN 8555 / MF 10-GF-65-G 63 5.5 1.1 1.2 25.7 Bal. x x SK 258 NBC-O DIN 8555 / MF 6-GF-60-G 57 1.4 0.7 1.2 5.3 8.5 Bal. x x SK 260 NBC-O DIN 8555 / MF 6-GF-60 60 1.2 0.6 1.4 5.3 8.3 2 Bal. x x SK 299-O DIN 8555 / MF 10-GF-65-GZ 64 4.9 0.2 1 11.3 6.8 0.55 Bal. x x x SK 460-O DIN 8555 / MF 10-GF-60-G 57 3.7 0.3 1.1 32 0.5 0.2 Bal. x SK 820-O DIN 8555 / MF 10-GF-60-G 59 4 0.1 0.1 20 0.45 Bal. x x SK 866-O DIN 8555 / MF 10-GF-60-G 60 4.5 0.7 0.8 27 0.5 Bal. x x SK 867-O DIN 8555 / MF 10-GF-60-G 62 5 0.2 1.9 29 0.5 05 x x SK 867WP-O DIN 8555 / MF 10-GF-60-G 62 5 0.2 1.4 29 0.5 Bal. x x SK 900-O DIN 8555 / MF 21-GF-65-G 63 2.9 0.4 0.4 5.8 42 Bal. x x SK A39-O DIN 8555 / MF 10-GF-60-G 58 4 0.3 0.7 18.5 3 0.25 Bal. x x x SK A43-O DIN 8555 / MF 10-GF-65-G 64 5.6 0.2 1.3 20.2 6.7 Bal. x x x SK A43-OB DIN 8555 / MF 10-GF-65-G 65 5.2 0.2 1 20.3 6.7 1 Bal. x x x SK A45-O DIN 8555 / MF 10-GF-65-GT 63 5.3 0.2 0.7 21.2 6.3 6.1 1.9 1 Bal. x x x SK A45W-O DIN 8555 / MF 10-GF-65-GT 63 5.3 0.2 0.5 21.2 6.2 6.1 1.8 1 Bal. x x x SK A46-O DIN 8555 / MF 10-GF-60-GZ 61 4.7 0.2 1 20.7 5 Co = 8.8 Bal. x x x SK A64-O DIN 8555 / MF 10-GF-65-GT 61 4.8 0.6 1.2 20.5 9.9 Bal. x x SK ABRA-MAX O/G DIN 8555 / MF 10-GF-70-G 70 + + + + + + + + Bal. x x x SAW solid wires & flux for anti-wear applications UTP Maintenance offers a full range of SAW solid wires and flux combinations for anti-wear applications. SAW wires Product Name EN/EN ISO UTP UP 73 G 2 EN 14700 / SZ Fe8 UTP UP 73 G 3 EN 14700 / S Fe3 UTP UP 73 G4 EN 14700 / SZ Fe3 UTP DUR 250 EN 14700 / E Fe1 UTP DUR 350 EN 14700 / E Fe1 SAW flux cored wires & flux for anti-wear applications UTP Maintenance offers a full range of SAW cored wires and flux combinations for anti-wear applications Austenitic manganese steels Product Name DIN HB HRC C Mn Si Cr Mo Nb W V Fe Co Low stress abrasion High stress abrasion Erosion Impact Corrosion Cavitation Metal to metal wear Heat SK 219-S DIN 8555 / UP 7-GF-200/450-KP 205 0.95 18 1 4.6 Bal. x x SK AP-S DIN 8555 / UP 7-GF-200-KP 200 0.45 16 0.5 13 Bal. x x Unalloyed fine-grained and low-alloyed steels Product Name DIN HB HRC C Mn Si Cr Mo Nb W V Fe Co Low stress abrasion High stress abrasion Erosion Impact Corrosion Cavitation Metal to metal wear Heat SK 20 CRMO-SA DIN 8555 / UP 1-GF-2000 250 0.13 1 0.4 0.6 0.3 Bal. SK 242-S DIN 8555 / UP 1-GF-40-P 40 0.14 1.6 0.7 2 0.7 0.4 Bal. SK 258-SA DIN 8555 / UP 6-GF-55-GT 57 0.5 1.5 0.6 6.2 1.7 1.7 Bal. SK 258 L-SA DIN 8555 / UP 6-GF-45-GT 44 0.18 1.5 0.4 5.6 1.7 1.5 Bal. SK 258 NBC-SA - / - 57 12 0.8 0.8 6 8 1.4 Bal. SK 263-SA - / - 50 0.23 1.2 0.7 6 2.7 Bal. SK 350-S DIN 8555 / UP 5-GF-300 320 0.07 1.4 0.3 4 0.5 0.1 Bal. SK BU-S DIN 8555 / UP 1-GF-250-P 280 0.1 0.9 0.6 0.5 0.3 Bal. SK CRMO15-SA DIN 8555 / UP 1-GF-250 230 0.02 0.8 0.6 1.1 0.4 Bal. SK SOUDOCORE D-SA - / - 190 0.09 1.5 0.5 Bal. High-alloyed steels Product Name DIN HB HRC C Mn Si Cr Mo Nb W V Fe Co Low stress abrasion High stress abrasion Erosion Impact Corrosion Cavitation Metal to metal wear Heat SK A45-S DIN 8555 / UP 10-GF-65-GT 64 5.1 0.2 0.6 21.5 5.4 5.7 1.9 0.95 Bal. x x x Tool steels Product Name DIN HB HRC C Mn Si Cr Mo Nb W V Fe Co Low stress abrasion High stress abrasion Erosion Impact Corrosion Cavitation Metal to metal wear Heat SK D35-S DIN 8555 / UP 5-GF-50-CT 47 0.12 0.2 0.5 15 2.3 Bal. 13.5 x x x x Stainless steel Product Name DIN HB HRC C Mn Si Cr Ni Mo Nb W V Fe Erosion Impact Corrosion Cavitation Metal to metal wear Heat SK 385-SA DIN 8555 / UP 6-GF-55-CG 54 1.3 0.4 16 0.5 . Bal x x SK 402-S DIN 8555 / UP 8-GF-150/400-KPZ 160 0.07 6.6 1 17 8 Bal. x x SK 410 NIMO-SA DIN 8555 / UP 5-GF-40-C 39 0.05 1 0.3 12.5 5 0.9 Bal. x x SK 415-SA DIN 8555 / UP 5-GF-45-C 42 0.08 0.9 0.4 13.5 2.1 1.1 0.2 0.3 Bal. x x SK 420-SA DIN 8555 / UP 6-GF-55-CG 53 0.27 1.3 0.3 13.5 Bal. x x SK 430 C-SA DIN 8555 / UP 5-GF-200-C 175 0.04 0.9 0.5 19.5 Bal. x x SK 430 MO-SA DIN 8555 / UP 6-GF-300-C 260 0.25 1 0.6 17.9 1 Bal. x x SK 461-CSA DIN 8555 / UP 6-GF-50-C 54 0.26 0.9 0.5 12.2 0.4 1.4 0.9 1 Bal. x x SK 742 N-SK DIN 8555 / UP 5-GF-45-C 44 0.04 1.2 0.4 13.5 3.3 1.3 0.1 0.15 Bal. x x SAW cored wires & flux selection table Cored wire Flux RECORD SA RECORD SK RECORD SR SK 219-S x SK AP-Sw x SK 20CrMo-SA x SK 242-S x SK 258 NbC-SA x x SK 258L-SA x x SK 258-SA x x SK 263-SA x x SK 350-S x SK BU-S x x SK CrMo15-SA x SK SOUDOCORE-D-SA x SK 255-S x SK A45-S x SK 385-SA x SK 402-S x SK 410 NiMo-SA x SK 415-SA x SK 420-SA x SK 430 Mo-SA x x SK 430C-SA x x SK 461-CSA x x SK 461-SA x x SK 740L-SA x x SK 742 N-SK x SK D35-S x