• Model NO.：KM-20200902
• Transport Package：in Bundles or Wooden Cases
• Specification：19.05mm - 114.3mm
• Trademark：KINGMETAL
• Origin：China
• HS Code：7306309000
• Production Capacity：1000 Tons Per Month

StandardJIS G3445GradeSTKM11,STKM12,STKM13,STKM14,STKM15,STKM16,STKM17,STKM18,STKM19,STKM20Outer Dimensions19.05mm - 114.3mmWall Thickness2.0mm - 14 mmLengthmax 16000mm

Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers' requirements .

Chemical Compositions(%):

Grade 12ASTKM 12ABSTKM 12BCSTKM 12CGrade 13ASTKM 13ABSTKM 13BCSTKM 13CGrade 14ASTKM 14ABSTKM 14BCSTKM 14CGrade 15ASTKM 15ACSTKM 15CGrade 16ASTKM 16ACSTKM 16CGrade 17ASTKM 17ACSTKM 17CGrade 18ASTKM 18ABSTKM 18BCSTKM 18CGrade 19ASTKM 19ACSTKM 19CGrade 20ASTKM 20A

The sub classification letter symbols A, B and C are used to indicate distinction of method of manufacturing the tube, cold working process, heat treatment, etc.

World standard Comparative with JIS G3445

D 3517Grade 11 ASTKM 11 AA513MT1010G-3445STKM11A--A519MT1010 Grade 12ASTKM 12 AA513MT1015 STKM12A980CDS-3A519MT1015 Grade 12 BSTKM 12 B-- STKM12B-- Grade 12CSTKM 12CA512MT1015 STKM12C--A513 Grade 13 ASTKM 13 AA512MT  1025 STKM13A--A513MTX1025A519 MT  1025 Grade13BSTKM 13 B-- STKM13B980CDS-4 Grade13 CSTKM 13 C-- STKM13C-- Grade14 ASTKM 14 AA513MT1030 STKM14A1717CDS-103A519MT1030 Grade14 BSTKM 14 B-- STKM14B-- Grade14 CSTKM 14 C-- STKM14C-- Grade15 ASTKM 15 AA513MT1033 STKM15A1717CDS-105 Grade15 CSTKM 15 C-- STKM15C-- Grade16 ASTKM 16 AA519MT1040 STKM16A980CDS-5 Grade16 CSTKM 16 C-- STKM16C-- Grade17 ASTKM 17 AA519MT1050 STKM17A980CDS-71717CDS-107 Grade17 CSTKM 17 C-- STKM17B-- Grade18 ASTKM 18 AA519MT1524 STKM18A980CDS-9 Grade18 BSTKM 18 B-- STKM18B-- Grade18 CSTKM 18 C-- STKM18C-- Grade19 ASTKM 19 A-- --- Grade19 CSTKM 19 C-- --- Grade20 ASTKM 20 A-- ---

The tubes shall be practically straight. and the two ends shall be at right angles to the axis of the tube. The tubes shall be free from defects detrimental to practical use.

Tolerance on Outside Diameter

No. 1Under 50mm ±0.5mm50mm or over ±1%No. 2Under 50mm ±0.25mm50mm or over ±0.5%No. 3Under 25mm ±0.12mm25mm or over to and excl. 40mm ±0.15mm40mm or over to and excl. 50mm ±0.18mm50mm or over to and excl. 60mm ±0.20mm60mm or over to and excl. 70mm ±0.23mm70mm or over to and excl. 80mm ±0.25mm80mm or over to and excl. 90mm ±0.30mm90mm or over to and excl.100mm ±0.40mm100mm or over ±0.50%

Tolerance of Thickness

No. 1Under 4mm+0.6mm-0.5mm4mm or over15%-12.50%No. 2Under 3mm±0.3mm3mm or over