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Mechanical and Automobile Precision Tube

Standards & Grade
Standard:ASTM(ASME), JIS, DIN, EN, GB, JOHS
Grade: EN10305-1 E215/E235/E355
STKM 11A / 12A / 12B / 12C / 13A / 13B / 13C / 14A / 14B / 14C
STKM 15A / 15C / 16A / 16C / 17A / 17C / 18A / 18B / 18C
S10C, S15C, S20C, S25C, S30C, S35, S40C, S45C, S50C
(S)A 500 Gr. A / Gr. B / Gr. C / Gr. D
(S)A519 MT1010 / MT1015 / MT1020 / 1030 / 1035 / 1040 / 1045 / 1050 / 4130 / 4135 / 4140
SAE 1010 / 1015 / 1020 / 1025 / 1030 / 1035 / 1040 / 1045 / 1050 / 1541
DIN2391-1 St30Si / St30A1 / St35 / St45 / St52

Designation Symbol Description
Cold drawn(rolled) - Hard +C / BK  No heat treatment after the final cold drawing.
Cold drawn(rolled) - Soft +LC / BKW  After the final heat treatment, there is a suitable drawing pass.
Stress relieved after
cold drawn(rolled)
+SR / BKS  After the final cold drawing, there is a stress relief heat treatment in
 a controlled atmosphere.
Annealed +A / GBK  After the final cold drawing, the tubes are annealed in a controlled
 atmosphere.
Normalized +N / NBK  After the final cold drawing, the tubes are normalized in a controlled
 atmosphere.

Heat Exchanger & Boiler Tube

Standards & Grade
Standard:ASTM(ASME), JIS, DIN, EN, GB
Grade: (S)A106 Gr. A / Gr. B / Gr. C (S)A179 (S)A192
(S)A210 Gr. A1 / Gr. C (S)A209 Gr.T1 / Gr. T1a / Gr. T1b
(S)A213 T2 / T5 / T9 / T11 / T12 / T22 / T91(S) A209 T1 / T1A / T1B
(S)A334 Gr. 1 / Gr. 6
(S)A423 (S)A556 Gr. A2 / Gr. B2 / Gr. C2
STPG370, STPG 410, STB340, STB410, STB510, STBL380
STBA 12, STBA 13, STBA20, STBA22, STBA23, STBA24, STBA25
STF 340, STFA12, STFA22, STFA23, STFA24
DIN 17175 St35.8, St 45.8, 13CrMo44, 10CrMo9-10
EN10216-1 P195 TR1/2, P235 TR1/2, P265TR1/2
EN10216-2 P195GH, P235GH, P265GH, 16Mo3, 13CrMo4-5, 10CrMo9-10

Hydraulic Tube & Pipe

Standards & Grade
Standard:ASTM(ASME), JIS, DIN, EN, GB, JOHS
Grade: ASTM(ASME)(S)A822
STS 370, STS410, STS 480, STPG 370, STPG 410
OST-1 / OST-2
St30Si / St30A1/ St35/ St45/ St52(DIN 2391)
St37.4 / S44.4, St52.4 (DIN 1630)
E215, E235, E355 (EN 10305)
P195GH, P235GH, P265GH, 16Mo3, 13CrMo4-5, 10CrMo9-10 (EN10216-2)

Fluid Seamless Pipe for Transportation Service

Standards & Grade
Standard:ASTM(ASME), JIS, DIN, EN, GB, API
Grade: API 5L , (S)A53 Gr. A / Gr. B (S)A106 Gr. A / Gr. B / Gr. C
(S)A161 Gr. Low - Carbon / Gr. T1
(S)A200 T4/ T5 / T11 / T21 / T22
(S)A333 Gr. 1 / Gr. 6
(S)A335 P1 / P2 / P5 / P11 / P12 / P15 / P21 / P22 / P23 / P91 / P92 / P122 / P911
STPG370, STPG410, STPT370 / 410/ 480, STPL380
STPA12 / STPA20 / STPA22 / STPA23 / STPA24 / STPA25

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