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JIS G3429 standard specifies the seamless steel tubes, hereinafter referred to as the tube used for the manufacture of seamless steel gas cylinders specified in JIS B8230 and JIS B8241.
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Application: Seamless Steel Tubes in High Pressure Gas Cylinder
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Standards: JIS G3429
Size range (mm):
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Outer Dimensions: 19.05mm ~ 114.3mm
Wall Thickness:2.0mm ~ 14 mm
Length: max 16000mm
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The main products of steel / steel grade:
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JIS G3429 STH11
JIS G3429 STH12
JIS G3429 STH21
JIS G3429 STH22
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Chemical Compositions(%)
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Grade
C
Si
Mn
P
S
Ni
Cr
Mo
STH11
≤0.50
0.10-0.35
≤1.80
≤0.035
≤0.035
/
/
/
STH12
0.30-0.41
0.10-0.35
1.35-1.70
≤0.030
≤0.030
/
/
/
STH21
0.25-0.35
0.15-0.35
0.40-0.90
≤0.030
≤0.030
≤0.25
0.80-1.20
0.15-0.30
STH22
0.33-0.38
0.15-0.35
0.40-0.90
≤0.030
≤0.030
≤0.25
0.80-1.20
0.15-0.30
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Packing:
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Packed in wooden crates, wrapped in plastic, and suitably protected for sea-worthly delivery or as requested.
Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.
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Delivery:
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Pipes are supplied in hexagonal bundles or round bundles tied with steel strip.
Weight of bundle – up to 5000 kg upon request of customer.
Each bundle is furnished with three tags.