Seamless Alloy steel tube

Royal industry is specialized in alloy seamless steel pipe, and our advantage product is alloy seamless steel pipe, which also can be straight seamless alloy steel pipe. These tube is used in boiler ,ex-change heater, automobile , precision tube, shipbuilding and so on.

Most of our seamless alloy tube are
The process of manufacture is : raw material inspection ---raw material pickled --- raw material cutting---raw material heating----perforation process---pipe pickled/phosphorization---cold rawing---heat treatment----property checking---straightening--inspection---packing

Royal industry can supply the following grade of seamless alloy steel tube.

JIS G3462

JIS G3458

ASTM A369/A369M

A369 FP1	A369 FP2	A369 FP5	A369 FP9	A369 FP11
A369 FP12	A369 FP21	A369 FP22	A369 FP91	A369 FP92

ASME SA369/SA369M

SA369 FP1	SA369 FP2	SA369 FP5	SA369 FP9	SA369 FP11
SA369 FP12	SA369 FP21	SA369 FP22	SA369 FP91	SA369 FP92

ASTM A355/A355M

A355P1	A355P2	A355P5	A355P5B	A355P5C	A355P9	A355P11	A355P12
A355P15	A355P21	A355P22	A355P23	A355P91	A355P92	A355P122	A355P911

ASME SA355/SA355M

SA355P1	SA355P2	SA355P5	SA355P5B	SA355P5C	SA355P9
SA355P15	SA355P21	SA355P22	SA355P23	SA355P91	SA355P92
SA355P911	SA355P12	SA355P122	SA355P11

ASTM A250/A250M

ASME SA250/SA250M

ASTM A213/A213M

A213 T2	A213 T5	A213 T5b	A213 T5c	A213 T9	A213 T11
A213 T12	A213 T17	A213 T21	A213 T23	A213 T24	A213 T36
A213 T91	A213 T92	A213 T122	A213 T911	18Cr2Mo	A213 T22

ASME SA213/SA213M

SA213 T2	SA213 T5	SA213 T5b	SA213 T5c	SA213 T9	SA213 T11
SA213 T12	SA213 T17	SA213 T21	SA213 T23	SA213 T24	SA213 T36
SA213 T91	SA213 T92	SA213 T122	SA213 T911	18Cr2Mo	SA213 T22

ASTM A209/A209M & ASME SA209/SA209M

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